Attribution of Plastic Sources Using Bayesian Inference: Application to River-Sourced Floating Plastic in the South Atlantic Ocean

Most marine plastic pollution originates on land. However, once plastic is at sea, it is difficult to determine its origin. Here we present a Bayesian inference framework to compute the probability that a piece of plastic found at sea came from a particular source. This framework combines informatio...

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Main Authors: Claudio M. Pierard, Deborah Bassotto, Florian Meirer, Erik van Sebille
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Marine Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmars.2022.925437/full
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author Claudio M. Pierard
Deborah Bassotto
Florian Meirer
Erik van Sebille
author_facet Claudio M. Pierard
Deborah Bassotto
Florian Meirer
Erik van Sebille
author_sort Claudio M. Pierard
collection DOAJ
description Most marine plastic pollution originates on land. However, once plastic is at sea, it is difficult to determine its origin. Here we present a Bayesian inference framework to compute the probability that a piece of plastic found at sea came from a particular source. This framework combines information about plastic emitted by rivers with a Lagrangian simulation, and yields maps indicating the probability that a particle sampled somewhere in the ocean originates from a particular river source. We showcase the framework for floating river-sourced plastic released into the South Atlantic Ocean. We computed the probability as a function of the particle age at three locations, showing how probabilities vary according to the location and age. We computed the source probability of beached particles, showing that plastic found at a given latitude is most likely to come from the closest river source. This framework lays the basis for source attribution of marine plastic.
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spelling doaj.art-0569c48526ad4beea37f4bf4451e37862022-12-22T00:42:12ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-07-01910.3389/fmars.2022.925437925437Attribution of Plastic Sources Using Bayesian Inference: Application to River-Sourced Floating Plastic in the South Atlantic OceanClaudio M. Pierard0Deborah Bassotto1Florian Meirer2Erik van Sebille3Institute for Marine and Atmospheric Research, Utrecht University, Utrecht, NetherlandsInstitute for Marine and Atmospheric Research, Utrecht University, Utrecht, NetherlandsInorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, NetherlandsInstitute for Marine and Atmospheric Research, Utrecht University, Utrecht, NetherlandsMost marine plastic pollution originates on land. However, once plastic is at sea, it is difficult to determine its origin. Here we present a Bayesian inference framework to compute the probability that a piece of plastic found at sea came from a particular source. This framework combines information about plastic emitted by rivers with a Lagrangian simulation, and yields maps indicating the probability that a particle sampled somewhere in the ocean originates from a particular river source. We showcase the framework for floating river-sourced plastic released into the South Atlantic Ocean. We computed the probability as a function of the particle age at three locations, showing how probabilities vary according to the location and age. We computed the source probability of beached particles, showing that plastic found at a given latitude is most likely to come from the closest river source. This framework lays the basis for source attribution of marine plastic.https://www.frontiersin.org/articles/10.3389/fmars.2022.925437/fullBayesian inferencecirculationplasticSouth AtlanticLagrangian
spellingShingle Claudio M. Pierard
Deborah Bassotto
Florian Meirer
Erik van Sebille
Attribution of Plastic Sources Using Bayesian Inference: Application to River-Sourced Floating Plastic in the South Atlantic Ocean
Frontiers in Marine Science
Bayesian inference
circulation
plastic
South Atlantic
Lagrangian
title Attribution of Plastic Sources Using Bayesian Inference: Application to River-Sourced Floating Plastic in the South Atlantic Ocean
title_full Attribution of Plastic Sources Using Bayesian Inference: Application to River-Sourced Floating Plastic in the South Atlantic Ocean
title_fullStr Attribution of Plastic Sources Using Bayesian Inference: Application to River-Sourced Floating Plastic in the South Atlantic Ocean
title_full_unstemmed Attribution of Plastic Sources Using Bayesian Inference: Application to River-Sourced Floating Plastic in the South Atlantic Ocean
title_short Attribution of Plastic Sources Using Bayesian Inference: Application to River-Sourced Floating Plastic in the South Atlantic Ocean
title_sort attribution of plastic sources using bayesian inference application to river sourced floating plastic in the south atlantic ocean
topic Bayesian inference
circulation
plastic
South Atlantic
Lagrangian
url https://www.frontiersin.org/articles/10.3389/fmars.2022.925437/full
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