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00:01 Hello and welcome to this training video

00:04 on the Plastic Pollution Assessment Methodology Suitability toolkit,

00:07 or PLAST for short.

00:09 I'm Doctor Kosta Veli,

00:10 academic at the University of Leeds.

00:13 In this video,

00:14 together with my colleague,

00:15 Doctor Josh Cotton,

00:16 we will introduce you to PLAST

00:18 and explain what it is used for,

00:20 provide instructions on how to open and run the toolkit,

00:23 and demonstrate guided examples of the toolkit in use.

00:30 The visible scar of plastic pollution on almost every

00:33 shoreline combined with striking images of harm it causes

00:37 and grim projections of future realities if action is not taken.

00:42 Has led to plastic pollution rising up the global agenda

00:45 to become a leading priority of many governments,

00:48 organizations and companies.

00:51 Fortunately,

00:52 the global community has begun to respond to this challenge,

00:55 developing and applying

00:57 plastic pollution assessment methodologies at a staggering rate.

01:01 However,

01:02 the number of these methodologies seemingly er growing by the day,

01:06 it is becoming increasingly hard

01:08 for potential users

01:09 to differentiate between them,

01:11 and more importantly,

01:13 decide which methodologies are best suited

01:15 to meet their needs.

01:17 With this in mind,

01:18 the University of Leeds,

01:20 in collaboration with Deltares,

01:22 IUCN

01:23 David Newbit

01:24 Associates,

01:25 and

01:26 have developed the the plus toolkit on behalf and for the World Bank

01:31 to characterize and prioritize plastic pollution assessment methodologies,

01:35 depending on the user's objectives and level of resources.

01:39 Now Plus has many different potential users,

01:42 for example.

01:44 National and regional governments tasked with setting goals,

01:49 developing strategies and monitoring

01:51 and reporting their progress towards those targets

01:54 may wish to use the tool to identify

01:56 which methodologies best support their needs.

02:00 Similarly,

02:00 non-governmental organizations

02:02 may also want to apply the tool

02:04 to help identify which assessment methodologies

02:07 can support any national priorities

02:09 or address any internal needs.

02:13 Businesses may wish to better understand their plastic pollution footprint,

02:17 using the toolkit to narrow down the potential options of methodologies

02:21 to just those that can help them.

02:24 Whereas local authorities,

02:26 often tasked with the responsibility of mitigating this plastic pollution,

02:30 may use the toolkit to highlight assessment methodologies

02:34 that may enable them to understand

02:37 how and where to intervene.

02:43 Lastly,

02:43 academics

02:44 and developers of plastic pollution methodologies

02:47 may want to use plas to better characterize and compare their methods to others.

02:58 So what do we mean by a plastic

03:00 pollution

03:01 assessment methodology?

03:04 Well,

03:05 we define this as any implementable methodology

03:09 that quantifies macroplastic pollution,

03:11 providing knowledge and understanding in order to effectively act.

03:16 To narrow down the innumerable different protocols,

03:19 frameworks and methodologies,

03:20 we set our selection criteria

03:23 as follows.

03:25 Firstly,

03:26 we decided to only include plastic pollution methodologies

03:30 that provide knowledge on how to effectively act.

03:33 In this sense,

03:35 data collection protocols which simply quantify plastic

03:38 pollution as a means to generate data without

03:41 providing any insights into the sources,

03:44 time dependence,

03:45 pathways,

03:46 or mitigating interventions

03:48 were excluded.

03:50 As plastic pollution is also the primary focus of this toolkit,

03:54 assessment methodologies that only considered other parts of the life cycle,

03:59 for example,

04:00 plastic waste trade or plastic waste generation,

04:03 without including an element of plastic waste leakage,

04:06 were also excluded.

04:09 Our 3rd selection criterion signifies

04:11 that we take here a broad stance,

04:14 except in toolkits applied anywhere in the world.

04:17 However,

04:18 we limit the selection criteria to exclude assessment methodologies

04:22 that only assess microplastics.

04:26 Lastly,

04:26 as the aim of the toolkit is to suggest methodologies which can be applied by a user,

04:31 here we limit the selection criteria

04:34 to only include methodologies which can be

04:36 practically be implemented in UK studies.

04:39 Therefore,

04:40 plastic pollution assessment methodologies,

04:42 which are still under development or cannot be applied to other locations,

04:46 are excluded.

04:50 In total,

04:51 over 30 methodologies have been initially

04:53 identified matching our inclusion criteria.

04:57 This ranged from methods focused on counting plastic wastes and beaches

05:01 right through to global hydrological models.

05:04 However,

05:05 we saw lots of variation between the methodologies

05:08 in terms of their scope,

05:10 scale,

05:10 and primary factors.

05:12 We noted they all followed

05:15 one of the four main approaches

05:17 as shown here.

05:20 Transfer coefficient approach is

05:22 a top-down method where flows are distributed

05:26 according to coefficients.

05:28 For example,

05:29 the amount of mismanaged waste which may enter oceans.

05:33 When applied as the primary method,

05:34 the transfer coefficient approach is typically adept at requiring low resources

05:38 and giving gross estimations

05:40 of plastic pollution to get policy.

05:43 Transfer coefficient approaches tend to provide

05:45 a simplistic overview of the plastic flows

05:48 in the solid waste management

05:50 and wider system.

05:53 Material flow analysis aims to model the flows and stocks of plastic waste

05:58 within a solid waste management system

06:00 to a much greater detail

06:01 than used in transfer coefficient-based approaches.

06:05 Material flow analysis approaches tend to be used,

06:07 for example,

06:08 when a more detailed assessment

06:10 of the system

06:11 in er use is required.

06:15 Statistical or trend analysis

06:18 are a bottom-up

06:20 approach,

06:20 typically used to understand the amount

06:22 of plastic pollution in different environmental compartments

06:26 by measurements in the field.

06:28 Results give a snapshot

06:30 of the amount of plastic pollution in an area at a moment in time,

06:34 but can be conducted over longer periods to monitor changes.

06:39 Lastly,

06:40 hydrological and transport modeling approaches

06:43 aims to harness the considerable experience that has been

06:47 amassed in hydrological modules and transfer this

06:50 to the problem of plastic pollution.

06:52 Typically using geographical information systems analysis,

06:56 this approach is primarily focused to understand

06:59 how plastic pollution in the environment may move

07:02 and transfer to the ocean

07:03 by combining estimates of terrestrial or riverine plastics

07:07 with information on rainfall and river characteristics and so on.

07:11 We acknowledge that there is a significant overlap between these approaches,

07:15 for example,

07:16 transfer coefficients,

07:18 um.

07:19 Uh,

07:19 are,

07:20 are an integral part of material flow analysis approach or can be.

07:24 However,

07:24 we believe that these four approaches

07:26 can be used in varying degrees within a methodology,

07:29 and more importantly provide the ability to answer different questions

07:33 with a different level of resources

07:35 and accuracy.

07:36 Crucially,

07:38 we do not make any assumptions on the

07:40 comparative scientific merit or accuracy of those approaches,

07:44 instead,

07:45 only using them to highlight the type of approach

07:48 which may be best suited,

07:50 depending on a user's needs

07:51 and resources.

07:59 We will now move to explain how the blast works.

08:02 The premise of blast is that it tries to match the user's need

08:06 to different methodological approaches

08:08 and assessment methodologies.

08:11 To do this,

08:12 all methodologies have been characterized by a framework

08:15 that consists of three

08:16 main parts.

08:18 Part A

08:19 relates to the high level policies and strategies

08:23 that a methodology may be able to support,

08:26 as well as the general level of resources required to undertake the assessment.

08:31 Part B relates to the more technical

08:33 outputs that an assessment methodology may generate.

08:36 Part C relates to the data requirements of the methodology.

08:41 Now,

08:41 we will discuss in a moment how the Plus framework

08:44 further breaks down each of these three main parts into a number of subcategories

08:49 that can relate directly

08:50 to specific user needs.

08:52 However,

08:53 in essence,

08:54 if we can characterize both the needs of the user

08:57 and the abilities of the methodology by the same framework,

09:00 we can then prioritize which methodologies are the most

09:04 suitable to the user.

09:07 So taking a more detailed look now at the framework,

09:10 starting with Part A,

09:12 policy related objectives.

09:15 This is broken down into 45 subcategories.

09:19 Let's consider what attributes a user may want to specify in this.

09:24 Objectives relates to the states at which they're acting on the plastic pollution,

09:28 for example,

09:29 developing baselines,

09:30 drafting action plans,

09:32 monitoring the impact

09:33 of interventions,

09:34 and so on.

09:36 For assessment scale,

09:37 they are looking at a national level of assessment or something more localized

09:42 for the scope.

09:44 What is the primary output the user wants to understand,

09:46 for instance,

09:47 are they interested in quantifying the sources of plastic pollution,

09:51 or do they want to understand how polluted the environment currently is?

09:56 Likewise,

09:57 which environmental compartment the user

09:59 is most interested in,

10:01 water or land?

10:02 And lastly,

10:03 what level of resources can the user allocate towards applying and assessment?

10:09 The same approach is taken for Part B,

10:12 technical objectives.

10:13 However,

10:14 there are 8 subcategories here

10:16 covering everything from the spatial resolution required

10:19 to the waste and resources management system resolution.

10:23 As well as specific functionalities of the assessment methodologies

10:27 and key insights,

10:28 they may be used to inform possible interventions.

10:33 Part C,

10:33 on the other hand,

10:34 looks at the data requirements of the methodology

10:37 and is formed only of two subcategories.

10:40 The first

10:41 tries to match the data needs of the assessment to the data that users

10:45 may have available or is willing to collect.

10:49 Whereas the second

10:50 ascertains how important is that a methodology can use proxy or default data.

10:58 Suggestions on the most suitable methodologies are presented to a user

11:03 according to a multi-criteria decision making algorithm.

11:07 Each of these three main parts has a series

11:09 of questions relating to the subcategories we've just seen.

11:13 The options

11:14 for that subcategory,

11:16 for instance,

11:16 various scales of the methodology that works out,

11:19 are also shown to the user,

11:20 as well as a series of selectable answers

11:23 that allow them to specify the importance of a methodology

11:26 having that option.

11:28 These may be a simple yes

11:30 or no answer,

11:31 for example,

11:32 in regards to data availability,

11:34 be high,

11:34 medium or low answers,

11:36 such as for resources availability.

11:39 Or

11:40 the essential,

11:41 important,

11:41 preferred,

11:42 and nonessential answers as it is the case for the majority of the questions.

11:47 Now as the user answers the questions,

11:50 and in doing so outlining their objectives,

11:52 requirements and resources,

11:54 the toolkit compares these inputs to its assessment framework database.

11:59 Methodologies that meet all essential criteria

12:01 are selected as potentially suitable candidates.

12:04 These are then ranked according to the number of options

12:08 that they have been specified as important,

12:10 and then

12:11 the number of specified as preferred,

12:13 and then

12:13 by the method with the closest match to data availability.

12:17 Finally,

12:18 if multiple methodologies are still ranked equally after this,

12:21 the methods are shown alphabetically.

12:24 We will now move on,

12:26 on another section of our training video,

12:29 demonstrating how to open Plast.

12:36 Plus has been developed using Microsoft Excel

12:39 and harnesses Visual Basic for Application,

12:41 or VBA for short,

12:43 to provide an interactive graphical user interface.

12:46 However,

12:46 to use Plast,

12:48 Microsoft Excel must be configured to enable

12:50 macros and access the VBA application.

12:54 To do this,

12:55 first open a new Microsoft Excel workbook.

12:59 Then click Options.

13:00 This is under the File menu in old versions.

13:03 Click Trust Center.

13:08 Then trust sent to settings.

13:11 Navigate to macro settings in the left toolbar.

13:15 Then

13:16 ensure the option

13:16 called Disable VBA Macros except digitally signed macros is ticked,

13:21 as well as the Trust access to the VBA Project Object model.

13:25 You can then click OK and OK again to save these settings.

13:29 Finally,

13:30 quit Excel.

13:31 Next we need to install the Toolit digital certificate.

13:34 A digital certificate is a security feature added to VBA projects to

13:38 verify that they are safe and unmodified from the official release.

13:42 Firstly,

13:43 ensure Plast is safe in a trusted location,

13:46 preferably not on a shared network drive.

13:48 We recommend My Documents.

13:51 Then

13:51 open plast.

13:54 A yellow security warning ribbon

13:56 should display at the top.

13:58 Click Enable Content.

14:00 If a pop-up message appears at this point about making this a trusted document,

14:04 click yes to this.

14:05 Otherwise,

14:06 proceed to click the options button in the security warning ribbon.

14:11 Go to show signature details in the pop-up window,

14:15 then

14:15 view certificate.

14:18 Finally,

14:18 click install certificate.

14:21 You then need to select where to save this file.

14:24 We suggest saving it in the local machine if admin rights allow,

14:27 but current user can also be chosen if not.

14:31 Either way,

14:32 select the second option,

14:33 enabling you to specify the folder.

14:36 Quick browse

14:38 Then trusted route certification authorities.

14:41 OK.

14:43 Next,

14:44 then finish.

14:47 A message should appear saying the installation was successful.

14:51 Close these down by clicking OK.

14:55 If your system administrator rights allows,

14:58 there may be a message here saying trust all documents from this publisher.

15:02 If so,

15:03 select it and click OK.

15:05 In this case

15:07 we can simply click OK.

15:10 Finally,

15:11 close Plus down

15:12 and reopen it from my documents.

15:16 The toolkit should now open to its title screen.

15:24 How to use last,

15:25 OK,

15:26 when Plast is opened,

15:27 a title screen will be displayed.

15:30 To proceed,

15:31 click on the start button on the right.

15:35 A disclaimer page will then be shown.

15:37 Again,

15:38 you can proceed by clicking the next button

15:40 in the bottom right corner.

15:44 Following this,

15:45 about and training pages will be visible.

15:49 Further details of the Plas methodology

15:51 and instructions to use the toolkit can be

15:53 found by clicking on the link on the accompanying

15:56 user manual.

15:58 Remember,

15:59 if you require any additional technical support,

16:02 please contact myself,

16:03 Doctor Costa Vales at the University of Leeds.

16:07 Once you have familiarized yourself with the user manual

16:10 and completed this training video,

16:12 please click on the box,

16:13 check box shown here.

16:15 At this point,

16:17 the next button will turn dark blue,

16:19 signaling it is active,

16:20 and you can now proceed

16:22 to the next step.

16:25 The next step.

16:27 Shows the main page of blast.

16:29 Let's first take a tour.

16:32 Along the top

16:34 are 3 buttons allowing you to switch between 3 main question sets.

16:38 Part A,

16:39 policy related objectives,

16:41 Part B,

16:42 technical objectives,

16:43 Part C,

16:44 data availability.

16:46 Your current position is signified by the dark blue button,

16:49 in this case Part A.

16:51 We advise Part A,

16:53 questions are completed by high-level users

16:56 who have an understanding of overall strategies,

16:58 goals,

16:59 and resources.

17:00 Parts B and C,

17:01 however,

17:02 should be completed by a user with

17:04 technical understanding of plastic pollution assessment methodologies.

17:09 Below these

17:11 Three buttons is the uh question ribbon.

17:14 Right,

17:15 these show how the subcategories of the plus framework that we discussed earlier

17:20 with er the name and number of these changing based on

17:23 the question you set er questions that you have selected.

17:27 In this case,

17:28 P A has 5 questions.

17:30 Users should navigate through these questions in order

17:33 to enable this,

17:34 only the current questions,

17:35 shown here by the white

17:37 button

17:38 and the next question,

17:39 the dark blue button in A2 in this example,

17:42 are active.

17:45 However,

17:46 once you click on A2,

17:47 the next button of A3 becomes active and so on.

17:50 Once clicked,

17:51 a question becomes permanently active and you can be uh revisited anytime.

17:56 Notice one,

17:58 which button uh notice that each button has a pop-up help box,

18:02 huh?

18:02 These are to help you if you struggle to understand any terminology

18:06 and are available by hovering over any of the buttons

18:09 on this main page,

18:10 or alternatively,

18:11 the information uh symbols.

18:13 Let's revert these and go back to the question A one for now.

18:19 The full text of the question you have to

18:21 answer is shown below uh the question ribbon,

18:23 along with the options that relate to that question and selectable answers.

18:28 In this case,

18:29 the question is asking about what states

18:31 are you focused

18:33 on your efforts to quantify plastic pollution?

18:35 Which four options provided

18:37 baselining,

18:38 action planning,

18:39 monitoring,

18:40 and benchmarking.

18:41 Each option can be answered as either yes or no,

18:45 and more than one option can be answered as yes,

18:47 if required.

18:49 Alternatively,

18:50 if none of the question options are relevant to you,

18:52 you can answer no for all,

18:54 or simply skip to the next question.

18:56 However,

18:57 we do advise users to try to complete all questions to part A if possible,

19:01 as these are important high level questions

19:03 and questions A32 A5 alone are used to suggest

19:07 how um suitable

19:09 the four generalized approaches

19:11 may be.

19:17 Results on the suitability of these four generalized approaches

19:21 will be shown on this top right results section

19:24 when 4 more options to questions A3 to A5

19:27 have been completed.

19:28 Interpretation of which we will discuss

19:31 shortly.

19:33 Below the approach suitability results

19:35 are the suggested methodology results.

19:37 The area will show the top 3 ranked

19:40 plastic pollution assessment methodologies that

19:43 Plas believes are the most suitable

19:45 to users' subjective and resources,

19:47 based on how they have answered the questions.

19:50 Again,

19:50 these results only appear

19:52 when sufficient options have been answered.

19:58 Continuing the tour,

19:59 if you simply wish to view details on methodologies available in Plast,

20:03 click the view all methodologies button.

20:06 These displays and pop-up window where details of its methodologies is provided

20:10 in alphabetical order.

20:12 The left and right arrows can be used to cycle between methodologies.

20:17 To close the pop-up window and return to the main page,

20:20 click on the uh uh cross at the top.

20:27 Following on,

20:28 frequently asked questions

20:30 can be accessed in this uh top toolbar.

20:34 Whereas

20:35 any completed inputs can be reset

20:37 across all three question sets

20:39 by clicking the reset

20:41 button.

20:43 I will now hand over to my colleague here

20:46 uh at the University of Leeds,

20:48 Doctor Josh Cottram,

20:50 to take you through the detailed question

20:52 and other features of the toolkit

20:54 and provide you with a guided example.

20:57 Over to you,

20:58 Jos.

21:01 Thank you.

21:02 Let's talk more about answering the questions.

21:05 We suggest that each of the 5 questions of

21:07 Part A is answered first by a high-level user

21:09 before a technical user answers the A questions of Part B

21:13 and 2 questions of Part C.

21:15 Remember,

21:16 users should only complete the questions that are relevant to their needs.

21:20 However,

21:21 they must view the questions initially

21:23 so that they're able to make this assessment before

21:25 they're allowed to proceed on to the next question.

21:29 There are 3 types of answers used withinlast.

21:32 For example,

21:32 some question options have simple answers of yes or no.

21:36 As we show here is the case for question C1.

21:40 This specifies whether the user has access to a certain data point or not.

21:45 Similarly,

21:46 questions such as A5,

21:47 what level of resources can you commit,

21:50 has answers of type high,

21:52 medium and low.

21:54 Further details on what each of these represents for the various options

21:58 is shown in the box at the bottom,

22:00 made visible by hovering over the option text.

22:04 The 3rd kind of answer,

22:06 and by far the most common in plast,

22:08 is those specifying the importance of a question option.

22:12 As shown here for question B1,

22:14 how important is it that the assessment methodology

22:18 works with the following spatial resolutions.

22:20 The user can select either essential,

22:23 important,

22:24 preferred,

22:25 or non-essential.

22:27 By default,

22:28 all answers are non-essential to begin with,

22:31 so if this question is not relevant to you,

22:33 you can simply skip to the next

22:35 question without it affecting the selection process.

22:40 Plush treats all options as it is essential

22:43 as a filter within the selection process.

22:46 Therefore,

22:46 only showing methodologies which have this feature.

22:50 We advise users

22:51 to only select essential as an answer when absolutely necessary,

22:56 as selecting too many options as essential

22:58 may significantly reduce the number of suitable methodologies.

23:04 To remind users of this,

23:05 a warning message is displayed at the bottom of the screen.

23:12 OK,

23:13 let's now move on to the results.

23:15 These show on the right hand side

23:16 when sufficient question options have been answered.

23:20 However,

23:20 these are preliminary results,

23:22 with the final results only obtained after all questions have been assessed.

23:26 To highlight this,

23:27 a pop-up explanation message appears.

23:31 As you continue to complete the questions,

23:33 the results automatically update.

23:36 The approach suitability results in the top right give a quick

23:40 indication of how suitable the four main types of approaches are

23:43 based on a user's Part A high level objectives and resources.

23:47 The largest bar being the most suitable approach,

23:50 in this case,

23:50 material for analysis.

23:53 On the other hand,

23:54 the suggested methodologies results

23:56 in the bottom right

23:57 outline the top 3 methodologies that score

24:00 highest based on the answers from all questions

24:03 and according to the multi-criteria decision framework.

24:07 Let's have a look at these in more detail.

24:11 Let's assume that a user has gone through and answered all the relevant questions.

24:16 Firstly,

24:17 the blue text at the top

24:19 tells us that 10 methodologies match the essential criteria

24:23 and are therefore potentially suitable options to meet our needs.

24:28 The top 3 ranked of these

24:30 is shown in this section.

24:32 This includes details on the assessment name,

24:35 the release year,

24:36 name of the developing organizations or authors,

24:39 and a star rating system

24:41 which summarizes how well it matches the important and preferred answers,

24:45 as well as the data requirements.

24:49 More detailed description of the assessment objectives,

24:52 the methodology,

24:53 and any key outputs and contacts

24:55 can be viewed by clicking the tabs in this box on the right hand side.

25:02 The side to side arrows can be used

25:03 to navigate between the top 3 ranked methodologies,

25:06 with details and star ratings changing accordingly.

25:12 Alternatively,

25:13 the details of the top 3 methodologies can be compared

25:15 in a PDF document by clicking the compare PDF button.

25:20 A pop-up message will display

25:21 if you have not yet assessed all available questions,

25:25 therefore warning that the results shown

25:27 are still preliminary.

25:29 Click OK on this message

25:31 to proceed to the PDF.

25:34 The comparison PDF will appear either as a pop-up window or

25:37 in a separate PDF viewer depending on the user's PC.

25:41 It shows both the approach suitability results

25:43 and the suggested methodologies results,

25:46 including all details shown in the tag box on the previous page.

25:50 This is laid out in a structured format to allow

25:52 users to save or print the results as necessary.

25:57 Additionally,

25:58 if there are any methodologies that are ranked equally to the top 3,

26:01 but are not shown in the suggested methodology section,

26:04 the names of these methodologies are also provided.

26:08 Typically,

26:09 equally ranked methodologies appear when the user has

26:11 only answered a small amount of the questions,

26:14 meaning the multi-criteria decision algorithm is not

26:16 able to discern between them yet.

26:20 Lastly,

26:21 the comparison PDF also shows a radar diagram.

26:24 This provides a visual comparison of how each of the three

26:27 top ranked methodologies scores against the user's answers of Part A,

26:31 Part B,

26:32 and Part C,

26:33 specified in terms of the percentage of inputs that they meet.

26:38 To save the results,

26:39 click the cross in the top right hand corner of the screen.

26:43 A message will display asking if you wish to save the results,

26:46 click yes to save.

26:54 Let's go through an application of plastic together

26:56 for a hypothetical example of a national government.

27:00 In this example,

27:01 we'll assume the government wishes to apply a plastic

27:03 pollution assessment methodology to complete the following objectives.

27:08 It's essential to them to understand how much plastic is

27:10 entering the oceans from land-based sources in their country,

27:14 preferably understanding the major rivers that are involved in this.

27:18 It's also important for them to understand what the

27:20 sources of the plastic waste entering the environment are

27:23 and how polluted different locations in their country are,

27:26 ideally broken down by province or municipalities.

27:30 They intend to use this information as a preliminary baselining assessment

27:34 and to compare their plastic pollution to other similar countries.

27:38 The government sees this assessment as

27:40 a starting point in tackling plastic pollution

27:42 and has technical expertise it can rely on in

27:44 the form of environmental and waste management departments.

27:48 These departments can source some semi-specialist equipment if needed,

27:51 however,

27:52 they have limited time available,

27:54 ideally aiming to have results in less than 2 months.

27:57 Therefore,

27:58 they'd prefer not to collect any primary data.

28:01 So,

28:01 let's go to the main page of PLAST and start outlining our needs,

28:05 beginning with question A1.

28:08 You can read the help text on the definition of the question

28:10 by scrolling onto the information icon,

28:13 as well as getting more details on what each

28:15 of the options mean by hovering over their text.

28:20 Now,

28:21 we know that the government is wanting to

28:22 do an initial baseline assessment of plastic pollution,

28:25 so we can set this option to yes.

28:29 As they're not at the moment considering

28:30 developing action plans or long-term monitoring,

28:33 we can leave the next two options blank.

28:35 However,

28:36 as they wish to be able to compare their results to that of other countries,

28:39 we set benchmarking to yes.

28:44 Question A2 asks about the scale over which the

28:47 whole of the assessment methodology will be applied.

28:50 We therefore wish to choose national,

28:52 as they want the results for the whole country.

28:55 Notice,

28:55 however,

28:56 that the selection options have now changed to essential,

28:59 important,

29:00 preferred and non-essential.

29:02 This is to reflect the fact that users may

29:04 consider some aspects more important to them than others,

29:07 with this specified importance being taken into account

29:09 when the toolkit suggests the most suitable methodologies.

29:14 As the government in this example,

29:16 requires that the results are for the whole country,

29:19 we can therefore set national to essential.

29:24 Notice there is a warning message at the bottom.

29:27 This simply highlights the fact that choosing essential

29:31 acts as a hard filter within the toolkit.

29:33 Therefore,

29:34 any methodologies which cannot run at the national scale

29:37 will automatically be excluded.

29:41 This filtering only applies to options selected as essential.

29:46 Selecting important or preferred

29:48 is instead more simply used to rank the methodologies

29:51 where the essential components are already met.

29:55 It does this first by those selected important,

29:58 before distinguishing any equally ranked methodologies

30:01 by the preferred selections,

30:03 and then finally,

30:04 data requirements that we'll input in part C.

30:08 A more thorough explanation of this ranking process

30:11 can be read in the accompanying user manual.

30:15 Moving on to question A3,

30:16 the assessment scope.

30:19 We know the government is primarily concerned

30:22 with quantifying

30:23 the amount of plastic that is emptying the ocean from their country.

30:27 As such,

30:28 we can set plastic discharge to oceans as essential.

30:35 Notice how we get this pop-up message

30:37 saying that preliminary results are now available to view.

30:41 As we can see over here on the right hand side.

30:44 These results will auto update as we continue to answer the questions.

30:51 Staying on question A3,

30:53 we know the government would also like to

30:55 know the land-based sources of this plastic pollution,

30:57 as well as how polluted the environment currently is.

31:02 Both of these are not as critical as the plastic discharge to oceans.

31:06 We can therefore set

31:08 the sources and the state of the environment as important.

31:15 For question

31:15 A4.

31:17 Environmental compartments,

31:19 we know the government is concerned with land-based sources of plastic pollution,

31:23 therefore we can set land as essential.

31:26 They'd also like to know,

31:27 if possible,

31:28 the hotspots where plastic is entering the oceans,

31:31 such as major contributing rivers,

31:33 although this is a bonus.

31:35 We therefore set riverine as preferred.

31:40 Finally,

31:41 question A5

31:42 asks about the level of resources the user has available.

31:46 Distributed

31:47 by specialist expertise.

31:50 Specialist equipment

31:52 And time.

31:55 Details of these

31:56 can be shown by hovering over them,

31:58 and the details shown in a pop-up box at the bottom.

32:03 These are scored slightly different than those above,

32:06 using a high,

32:06 meaning or low selections.

32:09 We know the government has some expertise that they can offer

32:12 in the form of their national departments to

32:14 do some basic data collection if necessary.

32:17 Therefore,

32:18 we set this option as medium.

32:21 Likewise,

32:21 they also have access to some semi-specialist equipment,

32:24 therefore,

32:25 we can also set the second option

32:27 as medium.

32:30 For the time,

32:31 they have a very short time frame of less than 2 months,

32:34 therefore,

32:35 we can select this option as low.

32:40 You can see this gray box at the bottom has taken

32:42 these inputs and calculated the overall resource availability as medium.

32:48 This can be thought of as a standardized level of resources

32:51 or say a proxy for the overall budget

32:53 that is likely to be available to them.

32:57 Now we have answered questions to part A,

32:59 the approach suitability results in the top right are complete.

33:03 You can see all approaches would be well suited to meet the user objectives,

33:07 likely because they are quite broad requirements.

33:10 However,

33:11 both material flow analysis

33:13 and statistical trend analysis

33:15 are ranked slightly higher.

33:18 On the other hand,

33:19 whilst we have results for the suggested methodologies,

33:22 these are not complete yet,

33:23 and we should continue to answer

33:25 the questions of Part B and C.

33:28 Moving on to Part B.

33:32 This focuses on the more technical outputs,

33:34 and therefore we recommend this that a user

33:36 with a high level of technical knowledge,

33:38 ideally someone with an appreciation for terminology

33:40 and methods used in plastic pollution assessments,

33:43 completes this section.

33:46 Question B1 is discussing the spatial resolution of the outputs.

33:51 This differs from the spatial scale of the assessment,

33:53 as asked on the previous questions,

33:55 as it relates to what spatial areas the methodology will inform on,

33:59 not only of the area which it will be applied.

34:02 For example,

34:03 the national government wants to get results at least at the national level.

34:07 Therefore,

34:08 we can select this as essential.

34:11 However,

34:12 they would also prefer breakdowns by each province,

34:14 municipality,

34:15 and river basin if possible.

34:17 So we can select these as preferred.

34:23 For question B2.

34:25 Let's assume the user would like the results for the period of a year ideally,

34:29 but he is not interested in any finer finer tempo resolutions.

34:34 The annual resolution is deemed important to them.

34:38 Questions B3 and B4

34:40 are asking whether the user is interested in

34:43 understanding the contribution from particular sectors or companies

34:46 or

34:46 aspects of the waste management system.

34:49 At this preliminary stage,

34:51 this doesn't really concern the government,

34:53 therefore they leave these options blank.

34:58 Question B5 asks about what level of detail the user

35:01 wants the results reported at in terms of plastic.

35:05 Let's assume it is essential to them

35:07 that they want the results at least at a plastic level,

35:11 but,

35:11 if possible,

35:12 would also like a breakdown by polymer,

35:15 therefore setting this to preferred.

35:18 Question B6

35:20 asks whether they want the quantification to be done by mass or by count.

35:24 Now it's likely that at this national level,

35:27 it would probably be mass that they would require.

35:29 However,

35:30 let's assume that the user does not necessarily know this,

35:33 and therefore,

35:34 it's better to leave this question blank

35:36 than to incorrectly fill it out.

35:41 Question B7 asks if there are any particular formats that

35:44 they would like the results to be displayed in.

35:47 Let's assume it's important to the user that some maps are produced,

35:51 but they're not overly concerned with any of the other options.

35:57 Finally,

35:58 question B8 is concerned with whether the assessment methodology

36:01 should prioritize interventions for them.

36:04 As the user is at a preliminary phase and

36:06 is not interested in action planning as of yet,

36:08 we can again leave these options empty.

36:13 You can see that after these updated selections,

36:15 our results have narrowed down to just 10 potentially suitable options,

36:19 those that meet our essential criteria.

36:22 Despite this,

36:23 the user should continue to fill out the remaining questions of Part C,

36:27 in case any of these options change rank

36:29 or new methodologies are deemed more suitable.

36:33 Part C focuses solely on the data the user has available or is willing to collect.

36:39 Question C1 is formed of yes or no answers for

36:42 the data that is typically required by the assessment methodologies.

36:46 For this example,

36:47 let's assume they already have access to waste generation and composition data.

36:53 Alongside

36:54 some information on their soil waste management system

36:57 and socioeconomics.

37:03 The remaining data they do not have,

37:05 and due to time restraints are not looking to perform any primary data collection.

37:10 Question C2,

37:11 ask the user how important

37:13 they

37:14 they feel being able to use proxy data or default data.

37:18 In this case,

37:19 the user realizes that they may not have all the data required,

37:22 and as they're not able to use any primary data collection

37:26 due to time restraints,

37:27 they think it would be preferable to use this.

37:31 Now all the user inputs are complete,

37:33 we can see the final results on the right hand side.

37:37 There are 10 methods that meet the essential criteria.

37:41 With the top 3

37:42 shown below.

37:45 These are ranked first

37:46 by the important components that they meet,

37:49 then by the preferred components.

37:52 You can see that the top 3 methods all have the same important component star rating.

37:57 Therefore,

37:58 it is the preferred components level

38:00 on which they are ranked.

38:03 You can also see the results

38:04 by going to the compare PDF button.

38:08 This produces a PDF

38:11 that summarizes all of the results

38:14 and is laid out in a way for easy saving or printing.

38:19 Users can go back

38:20 and change the answers to any questions

38:23 that they wish.

38:25 Or if they wish to start again,

38:27 they can click the reset button.

38:29 To go back to the start.

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transcript
Hello and welcome to this training video on the Plastic Pollution Assessment Methodology Suitability toolkit, or PLAST for short. I'm Doctor Kosta Veli, academic at the University of Leeds. In this video, together with my colleague, Doctor Josh Cotton, we will introduce you to PLAST and explain what it is used for, provide instructions on how to open and run the toolkit, and demonstrate guided examples of the toolkit in use. The visible scar of plastic pollution on almost every shoreline combined with striking images of harm it causes and grim projections of future realities if action is not taken. Has led to plastic pollution rising up the global agenda to become a leading priority of many governments, organizations and companies. Fortunately, the global community has begun to respond to this challenge, developing and applying plastic pollution assessment methodologies at a staggering rate. However, the number of these methodologies seemingly er growing by the day, it is becoming increasingly hard for potential users to differentiate between them, and more importantly, decide which methodologies are best suited to meet their needs. With this in mind, the University of Leeds, in collaboration with Deltares, IUCN David Newbit Associates, and have developed the the plus toolkit on behalf and for the World Bank to characterize and prioritize plastic pollution assessment methodologies, depending on the user's objectives and level of resources. Now Plus has many different potential users, for example. National and regional governments tasked with setting goals, developing strategies and monitoring and reporting their progress towards those targets may wish to use the tool to identify which methodologies best support their needs. Similarly, non-governmental organizations may also want to apply the tool to help identify which assessment methodologies can support any national priorities or address any internal needs. Businesses may wish to better understand their plastic pollution footprint, using the toolkit to narrow down the potential options of methodologies to just those that can help them. Whereas local authorities, often tasked with the responsibility of mitigating this plastic pollution, may use the toolkit to highlight assessment methodologies that may enable them to understand how and where to intervene. Lastly, academics and developers of plastic pollution methodologies may want to use plas to better characterize and compare their methods to others. So what do we mean by a plastic pollution assessment methodology? Well, we define this as any implementable methodology that quantifies macroplastic pollution, providing knowledge and understanding in order to effectively act. To narrow down the innumerable different protocols, frameworks and methodologies, we set our selection criteria as follows. Firstly, we decided to only include plastic pollution methodologies that provide knowledge on how to effectively act. In this sense, data collection protocols which simply quantify plastic pollution as a means to generate data without providing any insights into the sources, time dependence, pathways, or mitigating interventions were excluded. As plastic pollution is also the primary focus of this toolkit, assessment methodologies that only considered other parts of the life cycle, for example, plastic waste trade or plastic waste generation, without including an element of plastic waste leakage, were also excluded. Our 3rd selection criterion signifies that we take here a broad stance, except in toolkits applied anywhere in the world. However, we limit the selection criteria to exclude assessment methodologies that only assess microplastics. Lastly, as the aim of the toolkit is to suggest methodologies which can be applied by a user, here we limit the selection criteria to only include methodologies which can be practically be implemented in UK studies. Therefore, plastic pollution assessment methodologies, which are still under development or cannot be applied to other locations, are excluded. In total, over 30 methodologies have been initially identified matching our inclusion criteria. This ranged from methods focused on counting plastic wastes and beaches right through to global hydrological models. However, we saw lots of variation between the methodologies in terms of their scope, scale, and primary factors. We noted they all followed one of the four main approaches as shown here. Transfer coefficient approach is a top-down method where flows are distributed according to coefficients. For example, the amount of mismanaged waste which may enter oceans. When applied as the primary method, the transfer coefficient approach is typically adept at requiring low resources and giving gross estimations of plastic pollution to get policy. Transfer coefficient approaches tend to provide a simplistic overview of the plastic flows in the solid waste management and wider system. Material flow analysis aims to model the flows and stocks of plastic waste within a solid waste management system to a much greater detail than used in transfer coefficient-based approaches. Material flow analysis approaches tend to be used, for example, when a more detailed assessment of the system in er use is required. Statistical or trend analysis are a bottom-up approach, typically used to understand the amount of plastic pollution in different environmental compartments by measurements in the field. Results give a snapshot of the amount of plastic pollution in an area at a moment in time, but can be conducted over longer periods to monitor changes. Lastly, hydrological and transport modeling approaches aims to harness the considerable experience that has been amassed in hydrological modules and transfer this to the problem of plastic pollution. Typically using geographical information systems analysis, this approach is primarily focused to understand how plastic pollution in the environment may move and transfer to the ocean by combining estimates of terrestrial or riverine plastics with information on rainfall and river characteristics and so on. We acknowledge that there is a significant overlap between these approaches, for example, transfer coefficients, um. Uh, are, are an integral part of material flow analysis approach or can be. However, we believe that these four approaches can be used in varying degrees within a methodology, and more importantly provide the ability to answer different questions with a different level of resources and accuracy. Crucially, we do not make any assumptions on the comparative scientific merit or accuracy of those approaches, instead, only using them to highlight the type of approach which may be best suited, depending on a user's needs and resources. We will now move to explain how the blast works. The premise of blast is that it tries to match the user's need to different methodological approaches and assessment methodologies. To do this, all methodologies have been characterized by a framework that consists of three main parts. Part A relates to the high level policies and strategies that a methodology may be able to support, as well as the general level of resources required to undertake the assessment. Part B relates to the more technical outputs that an assessment methodology may generate. Part C relates to the data requirements of the methodology. Now, we will discuss in a moment how the Plus framework further breaks down each of these three main parts into a number of subcategories that can relate directly to specific user needs. However, in essence, if we can characterize both the needs of the user and the abilities of the methodology by the same framework, we can then prioritize which methodologies are the most suitable to the user. So taking a more detailed look now at the framework, starting with Part A, policy related objectives. This is broken down into 45 subcategories. Let's consider what attributes a user may want to specify in this. Objectives relates to the states at which they're acting on the plastic pollution, for example, developing baselines, drafting action plans, monitoring the impact of interventions, and so on. For assessment scale, they are looking at a national level of assessment or something more localized for the scope. What is the primary output the user wants to understand, for instance, are they interested in quantifying the sources of plastic pollution, or do they want to understand how polluted the environment currently is? Likewise, which environmental compartment the user is most interested in, water or land? And lastly, what level of resources can the user allocate towards applying and assessment? The same approach is taken for Part B, technical objectives. However, there are 8 subcategories here covering everything from the spatial resolution required to the waste and resources management system resolution. As well as specific functionalities of the assessment methodologies and key insights, they may be used to inform possible interventions. Part C, on the other hand, looks at the data requirements of the methodology and is formed only of two subcategories. The first tries to match the data needs of the assessment to the data that users may have available or is willing to collect. Whereas the second ascertains how important is that a methodology can use proxy or default data. Suggestions on the most suitable methodologies are presented to a user according to a multi-criteria decision making algorithm. Each of these three main parts has a series of questions relating to the subcategories we've just seen. The options for that subcategory, for instance, various scales of the methodology that works out, are also shown to the user, as well as a series of selectable answers that allow them to specify the importance of a methodology having that option. These may be a simple yes or no answer, for example, in regards to data availability, be high, medium or low answers, such as for resources availability. Or the essential, important, preferred, and nonessential answers as it is the case for the majority of the questions. Now as the user answers the questions, and in doing so outlining their objectives, requirements and resources, the toolkit compares these inputs to its assessment framework database. Methodologies that meet all essential criteria are selected as potentially suitable candidates. These are then ranked according to the number of options that they have been specified as important, and then the number of specified as preferred, and then by the method with the closest match to data availability. Finally, if multiple methodologies are still ranked equally after this, the methods are shown alphabetically. We will now move on, on another section of our training video, demonstrating how to open Plast. Plus has been developed using Microsoft Excel and harnesses Visual Basic for Application, or VBA for short, to provide an interactive graphical user interface. However, to use Plast, Microsoft Excel must be configured to enable macros and access the VBA application. To do this, first open a new Microsoft Excel workbook. Then click Options. This is under the File menu in old versions. Click Trust Center. Then trust sent to settings. Navigate to macro settings in the left toolbar. Then ensure the option called Disable VBA Macros except digitally signed macros is ticked, as well as the Trust access to the VBA Project Object model. You can then click OK and OK again to save these settings. Finally, quit Excel. Next we need to install the Toolit digital certificate. A digital certificate is a security feature added to VBA projects to verify that they are safe and unmodified from the official release. Firstly, ensure Plast is safe in a trusted location, preferably not on a shared network drive. We recommend My Documents. Then open plast. A yellow security warning ribbon should display at the top. Click Enable Content. If a pop-up message appears at this point about making this a trusted document, click yes to this. Otherwise, proceed to click the options button in the security warning ribbon. Go to show signature details in the pop-up window, then view certificate. Finally, click install certificate. You then need to select where to save this file. We suggest saving it in the local machine if admin rights allow, but current user can also be chosen if not. Either way, select the second option, enabling you to specify the folder. Quick browse Then trusted route certification authorities. OK. Next, then finish. A message should appear saying the installation was successful. Close these down by clicking OK. If your system administrator rights allows, there may be a message here saying trust all documents from this publisher. If so, select it and click OK. In this case we can simply click OK. Finally, close Plus down and reopen it from my documents. The toolkit should now open to its title screen. How to use last, OK, when Plast is opened, a title screen will be displayed. To proceed, click on the start button on the right. A disclaimer page will then be shown. Again, you can proceed by clicking the next button in the bottom right corner. Following this, about and training pages will be visible. Further details of the Plas methodology and instructions to use the toolkit can be found by clicking on the link on the accompanying user manual. Remember, if you require any additional technical support, please contact myself, Doctor Costa Vales at the University of Leeds. Once you have familiarized yourself with the user manual and completed this training video, please click on the box, check box shown here. At this point, the next button will turn dark blue, signaling it is active, and you can now proceed to the next step. The next step. Shows the main page of blast. Let's first take a tour. Along the top are 3 buttons allowing you to switch between 3 main question sets. Part A, policy related objectives, Part B, technical objectives, Part C, data availability. Your current position is signified by the dark blue button, in this case Part A. We advise Part A, questions are completed by high-level users who have an understanding of overall strategies, goals, and resources. Parts B and C, however, should be completed by a user with technical understanding of plastic pollution assessment methodologies. Below these Three buttons is the uh question ribbon. Right, these show how the subcategories of the plus framework that we discussed earlier with er the name and number of these changing based on the question you set er questions that you have selected. In this case, P A has 5 questions. Users should navigate through these questions in order to enable this, only the current questions, shown here by the white button and the next question, the dark blue button in A2 in this example, are active. However, once you click on A2, the next button of A3 becomes active and so on. Once clicked, a question becomes permanently active and you can be uh revisited anytime. Notice one, which button uh notice that each button has a pop-up help box, huh? These are to help you if you struggle to understand any terminology and are available by hovering over any of the buttons on this main page, or alternatively, the information uh symbols. Let's revert these and go back to the question A one for now. The full text of the question you have to answer is shown below uh the question ribbon, along with the options that relate to that question and selectable answers. In this case, the question is asking about what states are you focused on your efforts to quantify plastic pollution? Which four options provided baselining, action planning, monitoring, and benchmarking. Each option can be answered as either yes or no, and more than one option can be answered as yes, if required. Alternatively, if none of the question options are relevant to you, you can answer no for all, or simply skip to the next question. However, we do advise users to try to complete all questions to part A if possible, as these are important high level questions and questions A32 A5 alone are used to suggest how um suitable the four generalized approaches may be. Results on the suitability of these four generalized approaches will be shown on this top right results section when 4 more options to questions A3 to A5 have been completed. Interpretation of which we will discuss shortly. Below the approach suitability results are the suggested methodology results. The area will show the top 3 ranked plastic pollution assessment methodologies that Plas believes are the most suitable to users' subjective and resources, based on how they have answered the questions. Again, these results only appear when sufficient options have been answered. Continuing the tour, if you simply wish to view details on methodologies available in Plast, click the view all methodologies button. These displays and pop-up window where details of its methodologies is provided in alphabetical order. The left and right arrows can be used to cycle between methodologies. To close the pop-up window and return to the main page, click on the uh uh cross at the top. Following on, frequently asked questions can be accessed in this uh top toolbar. Whereas any completed inputs can be reset across all three question sets by clicking the reset button. I will now hand over to my colleague here uh at the University of Leeds, Doctor Josh Cottram, to take you through the detailed question and other features of the toolkit and provide you with a guided example. Over to you, Jos. Thank you. Let's talk more about answering the questions. We suggest that each of the 5 questions of Part A is answered first by a high-level user before a technical user answers the A questions of Part B and 2 questions of Part C. Remember, users should only complete the questions that are relevant to their needs. However, they must view the questions initially so that they're able to make this assessment before they're allowed to proceed on to the next question. There are 3 types of answers used withinlast. For example, some question options have simple answers of yes or no. As we show here is the case for question C1. This specifies whether the user has access to a certain data point or not. Similarly, questions such as A5, what level of resources can you commit, has answers of type high, medium and low. Further details on what each of these represents for the various options is shown in the box at the bottom, made visible by hovering over the option text. The 3rd kind of answer, and by far the most common in plast, is those specifying the importance of a question option. As shown here for question B1, how important is it that the assessment methodology works with the following spatial resolutions. The user can select either essential, important, preferred, or non-essential. By default, all answers are non-essential to begin with, so if this question is not relevant to you, you can simply skip to the next question without it affecting the selection process. Plush treats all options as it is essential as a filter within the selection process. Therefore, only showing methodologies which have this feature. We advise users to only select essential as an answer when absolutely necessary, as selecting too many options as essential may significantly reduce the number of suitable methodologies. To remind users of this, a warning message is displayed at the bottom of the screen. OK, let's now move on to the results. These show on the right hand side when sufficient question options have been answered. However, these are preliminary results, with the final results only obtained after all questions have been assessed. To highlight this, a pop-up explanation message appears. As you continue to complete the questions, the results automatically update. The approach suitability results in the top right give a quick indication of how suitable the four main types of approaches are based on a user's Part A high level objectives and resources. The largest bar being the most suitable approach, in this case, material for analysis. On the other hand, the suggested methodologies results in the bottom right outline the top 3 methodologies that score highest based on the answers from all questions and according to the multi-criteria decision framework. Let's have a look at these in more detail. Let's assume that a user has gone through and answered all the relevant questions. Firstly, the blue text at the top tells us that 10 methodologies match the essential criteria and are therefore potentially suitable options to meet our needs. The top 3 ranked of these is shown in this section. This includes details on the assessment name, the release year, name of the developing organizations or authors, and a star rating system which summarizes how well it matches the important and preferred answers, as well as the data requirements. More detailed description of the assessment objectives, the methodology, and any key outputs and contacts can be viewed by clicking the tabs in this box on the right hand side. The side to side arrows can be used to navigate between the top 3 ranked methodologies, with details and star ratings changing accordingly. Alternatively, the details of the top 3 methodologies can be compared in a PDF document by clicking the compare PDF button. A pop-up message will display if you have not yet assessed all available questions, therefore warning that the results shown are still preliminary. Click OK on this message to proceed to the PDF. The comparison PDF will appear either as a pop-up window or in a separate PDF viewer depending on the user's PC. It shows both the approach suitability results and the suggested methodologies results, including all details shown in the tag box on the previous page. This is laid out in a structured format to allow users to save or print the results as necessary. Additionally, if there are any methodologies that are ranked equally to the top 3, but are not shown in the suggested methodology section, the names of these methodologies are also provided. Typically, equally ranked methodologies appear when the user has only answered a small amount of the questions, meaning the multi-criteria decision algorithm is not able to discern between them yet. Lastly, the comparison PDF also shows a radar diagram. This provides a visual comparison of how each of the three top ranked methodologies scores against the user's answers of Part A, Part B, and Part C, specified in terms of the percentage of inputs that they meet. To save the results, click the cross in the top right hand corner of the screen. A message will display asking if you wish to save the results, click yes to save. Let's go through an application of plastic together for a hypothetical example of a national government. In this example, we'll assume the government wishes to apply a plastic pollution assessment methodology to complete the following objectives. It's essential to them to understand how much plastic is entering the oceans from land-based sources in their country, preferably understanding the major rivers that are involved in this. It's also important for them to understand what the sources of the plastic waste entering the environment are and how polluted different locations in their country are, ideally broken down by province or municipalities. They intend to use this information as a preliminary baselining assessment and to compare their plastic pollution to other similar countries. The government sees this assessment as a starting point in tackling plastic pollution and has technical expertise it can rely on in the form of environmental and waste management departments. These departments can source some semi-specialist equipment if needed, however, they have limited time available, ideally aiming to have results in less than 2 months. Therefore, they'd prefer not to collect any primary data. So, let's go to the main page of PLAST and start outlining our needs, beginning with question A1. You can read the help text on the definition of the question by scrolling onto the information icon, as well as getting more details on what each of the options mean by hovering over their text. Now, we know that the government is wanting to do an initial baseline assessment of plastic pollution, so we can set this option to yes. As they're not at the moment considering developing action plans or long-term monitoring, we can leave the next two options blank. However, as they wish to be able to compare their results to that of other countries, we set benchmarking to yes. Question A2 asks about the scale over which the whole of the assessment methodology will be applied. We therefore wish to choose national, as they want the results for the whole country. Notice, however, that the selection options have now changed to essential, important, preferred and non-essential. This is to reflect the fact that users may consider some aspects more important to them than others, with this specified importance being taken into account when the toolkit suggests the most suitable methodologies. As the government in this example, requires that the results are for the whole country, we can therefore set national to essential. Notice there is a warning message at the bottom. This simply highlights the fact that choosing essential acts as a hard filter within the toolkit. Therefore, any methodologies which cannot run at the national scale will automatically be excluded. This filtering only applies to options selected as essential. Selecting important or preferred is instead more simply used to rank the methodologies where the essential components are already met. It does this first by those selected important, before distinguishing any equally ranked methodologies by the preferred selections, and then finally, data requirements that we'll input in part C. A more thorough explanation of this ranking process can be read in the accompanying user manual. Moving on to question A3, the assessment scope. We know the government is primarily concerned with quantifying the amount of plastic that is emptying the ocean from their country. As such, we can set plastic discharge to oceans as essential. Notice how we get this pop-up message saying that preliminary results are now available to view. As we can see over here on the right hand side. These results will auto update as we continue to answer the questions. Staying on question A3, we know the government would also like to know the land-based sources of this plastic pollution, as well as how polluted the environment currently is. Both of these are not as critical as the plastic discharge to oceans. We can therefore set the sources and the state of the environment as important. For question A4. Environmental compartments, we know the government is concerned with land-based sources of plastic pollution, therefore we can set land as essential. They'd also like to know, if possible, the hotspots where plastic is entering the oceans, such as major contributing rivers, although this is a bonus. We therefore set riverine as preferred. Finally, question A5 asks about the level of resources the user has available. Distributed by specialist expertise. Specialist equipment And time. Details of these can be shown by hovering over them, and the details shown in a pop-up box at the bottom. These are scored slightly different than those above, using a high, meaning or low selections. We know the government has some expertise that they can offer in the form of their national departments to do some basic data collection if necessary. Therefore, we set this option as medium. Likewise, they also have access to some semi-specialist equipment, therefore, we can also set the second option as medium. For the time, they have a very short time frame of less than 2 months, therefore, we can select this option as low. You can see this gray box at the bottom has taken these inputs and calculated the overall resource availability as medium. This can be thought of as a standardized level of resources or say a proxy for the overall budget that is likely to be available to them. Now we have answered questions to part A, the approach suitability results in the top right are complete. You can see all approaches would be well suited to meet the user objectives, likely because they are quite broad requirements. However, both material flow analysis and statistical trend analysis are ranked slightly higher. On the other hand, whilst we have results for the suggested methodologies, these are not complete yet, and we should continue to answer the questions of Part B and C. Moving on to Part B. This focuses on the more technical outputs, and therefore we recommend this that a user with a high level of technical knowledge, ideally someone with an appreciation for terminology and methods used in plastic pollution assessments, completes this section. Question B1 is discussing the spatial resolution of the outputs. This differs from the spatial scale of the assessment, as asked on the previous questions, as it relates to what spatial areas the methodology will inform on, not only of the area which it will be applied. For example, the national government wants to get results at least at the national level. Therefore, we can select this as essential. However, they would also prefer breakdowns by each province, municipality, and river basin if possible. So we can select these as preferred. For question B2. Let's assume the user would like the results for the period of a year ideally, but he is not interested in any finer finer tempo resolutions. The annual resolution is deemed important to them. Questions B3 and B4 are asking whether the user is interested in understanding the contribution from particular sectors or companies or aspects of the waste management system. At this preliminary stage, this doesn't really concern the government, therefore they leave these options blank. Question B5 asks about what level of detail the user wants the results reported at in terms of plastic. Let's assume it is essential to them that they want the results at least at a plastic level, but, if possible, would also like a breakdown by polymer, therefore setting this to preferred. Question B6 asks whether they want the quantification to be done by mass or by count. Now it's likely that at this national level, it would probably be mass that they would require. However, let's assume that the user does not necessarily know this, and therefore, it's better to leave this question blank than to incorrectly fill it out. Question B7 asks if there are any particular formats that they would like the results to be displayed in. Let's assume it's important to the user that some maps are produced, but they're not overly concerned with any of the other options. Finally, question B8 is concerned with whether the assessment methodology should prioritize interventions for them. As the user is at a preliminary phase and is not interested in action planning as of yet, we can again leave these options empty. You can see that after these updated selections, our results have narrowed down to just 10 potentially suitable options, those that meet our essential criteria. Despite this, the user should continue to fill out the remaining questions of Part C, in case any of these options change rank or new methodologies are deemed more suitable. Part C focuses solely on the data the user has available or is willing to collect. Question C1 is formed of yes or no answers for the data that is typically required by the assessment methodologies. For this example, let's assume they already have access to waste generation and composition data. Alongside some information on their soil waste management system and socioeconomics. The remaining data they do not have, and due to time restraints are not looking to perform any primary data collection. Question C2, ask the user how important they they feel being able to use proxy data or default data. In this case, the user realizes that they may not have all the data required, and as they're not able to use any primary data collection due to time restraints, they think it would be preferable to use this. Now all the user inputs are complete, we can see the final results on the right hand side. There are 10 methods that meet the essential criteria. With the top 3 shown below. These are ranked first by the important components that they meet, then by the preferred components. You can see that the top 3 methods all have the same important component star rating. Therefore, it is the preferred components level on which they are ranked. You can also see the results by going to the compare PDF button. This produces a PDF that summarizes all of the results and is laid out in a way for easy saving or printing. Users can go back and change the answers to any questions that they wish. Or if they wish to start again, they can click the reset button. To go back to the start.
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2 PLAST Training video
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The Plastic Pollution Assessment Methodologies Suitability Toolkit (PLAST) supports users to identify the most suitable methodologies for assessing plastic pollution, based on the level of resources available and the users’ technical- and policy-related objectives. This video explains the functionality of the toolkit and provides a step-by-step walk through on how to use the toolkit and access the results.
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