A watershed-scale, citizen science approach to quantifying microplastic concentration in a mixed land-use river
Microplastic (particles
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| Veröffentlicht in: | Water research (Oxford) 2018-12, Vol.147, p.382-392 |
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| container_title | Water research (Oxford) |
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| creator | Barrows, Abigail P.W. Christiansen, Katie S. Bode, Emma T. Hoellein, Timothy J. |
| description | Microplastic (particles |
| doi_str_mv | 10.1016/j.watres.2018.10.013 |
| format | Article |
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•Watershed-scale approach examines spatial and temporal microplastic concentration.•Trained volunteers (citizen scientists) collected 714 1L grab samples over 2 years.•No longitudinal pattern found between microplastic concentration and land-use.•Microfibers dominant type of microplastics discovered.•High flow periods may dilute microplastic inputs from point sources.</description><identifier>ISSN: 0043-1354</identifier><identifier>EISSN: 1879-2448</identifier><identifier>DOI: 10.1016/j.watres.2018.10.013</identifier><identifier>PMID: 30336341</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Citizen science ; Microfiber ; Microplastic ; Pollution ; River ; Watershed</subject><ispartof>Water research (Oxford), 2018-12, Vol.147, p.382-392</ispartof><rights>2018 Elsevier Ltd</rights><rights>Copyright © 2018 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c474t-8339ab9b6b295ed3b99cead48870134f7dd924a341e8998154312a16148668563</citedby><cites>FETCH-LOGICAL-c474t-8339ab9b6b295ed3b99cead48870134f7dd924a341e8998154312a16148668563</cites><orcidid>0000-0001-7616-7227</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.watres.2018.10.013$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,46000</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30336341$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Barrows, Abigail P.W.</creatorcontrib><creatorcontrib>Christiansen, Katie S.</creatorcontrib><creatorcontrib>Bode, Emma T.</creatorcontrib><creatorcontrib>Hoellein, Timothy J.</creatorcontrib><title>A watershed-scale, citizen science approach to quantifying microplastic concentration in a mixed land-use river</title><title>Water research (Oxford)</title><addtitle>Water Res</addtitle><description>Microplastic (particles < 5 mm) pollution dynamics are well documented in oceans and increasingly studied in freshwater. We used a watershed-scale approach to examine spatial and temporal patterns in microplastic concentrations in the Gallatin River watershed (Montana, USA). At 72 sites, trained volunteers collected ∼1-L grab samples at 4 seasons per year over 2 years (n = 714 samples). Microplastics were found in 57% of the samples (mean = 1.2 particles L−1). The majority of particles were fibers (80%), 0.1–1.5 mm long. Chemical identification determined 93% of particles measured by μFT-IR were synthetic or semi-synthetic materials. Microplastic concentration differed significantly among dates, but showed no longitudinal pattern or relationship to land-use among subwatersheds. At two sites with gaging stations, microplastic was negatively related to discharge when compared across dates. This suggests stormwater is not a source of microplastic in this watershed, but instead dilutes microplastic inputs from other sources. We conclude that microplastic sources are diverse, and measurements of microplastic deposition, resuspension, and transport may be needed to clarify the role of land-use patterns on microplastic pollution. This large scale, citizen science based approach provides a model for future analysis which can further expand microplastic collection at the watershed scale.
[Display omitted]
•Watershed-scale approach examines spatial and temporal microplastic concentration.•Trained volunteers (citizen scientists) collected 714 1L grab samples over 2 years.•No longitudinal pattern found between microplastic concentration and land-use.•Microfibers dominant type of microplastics discovered.•High flow periods may dilute microplastic inputs from point sources.</description><subject>Citizen science</subject><subject>Microfiber</subject><subject>Microplastic</subject><subject>Pollution</subject><subject>River</subject><subject>Watershed</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kElPwzAQhS0EgrL8A4R85ECKtyT2BQlVbFIlLnC2HHsKrtKktZ2y_HpctXDkNNLMNzPvPYTOKRlTQqvr-fjDpABxzAiVuTUmlO-hEZW1KpgQch-NCBG8oLwUR-g4xjkhhDGuDtERJ5xXXNAR6m9xPgMhvoMrojUtXGHrk_-GDkfrobOAzXIZemPfcerxajBd8rMv373hhbehX7YmJm-x7TPapWCS7zvsO2zy_BMcbk3niiECDn4N4RQdzEwb4WxXT9Dr_d3L5LGYPj88TW6nhRW1SIXkXJlGNVXDVAmON0pZME5IWWebYlY7p5gw2QJIpSQtBafM0IoKWVWyrPgJutzezdJXA8SkFz5aaLMa6IeoGWW8pnXJeUbFFs1uYgww08vgFyZ8aUr0Jmo919uo9SbqTTdryGsXuw9DswD3t_SbbQZutgBkn2sPQe8CdT6ATdr1_v8PP6REkg4</recordid><startdate>20181215</startdate><enddate>20181215</enddate><creator>Barrows, Abigail P.W.</creator><creator>Christiansen, Katie S.</creator><creator>Bode, Emma T.</creator><creator>Hoellein, Timothy J.</creator><general>Elsevier Ltd</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-7616-7227</orcidid></search><sort><creationdate>20181215</creationdate><title>A watershed-scale, citizen science approach to quantifying microplastic concentration in a mixed land-use river</title><author>Barrows, Abigail P.W. ; Christiansen, Katie S. ; Bode, Emma T. ; Hoellein, Timothy J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c474t-8339ab9b6b295ed3b99cead48870134f7dd924a341e8998154312a16148668563</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Citizen science</topic><topic>Microfiber</topic><topic>Microplastic</topic><topic>Pollution</topic><topic>River</topic><topic>Watershed</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Barrows, Abigail P.W.</creatorcontrib><creatorcontrib>Christiansen, Katie S.</creatorcontrib><creatorcontrib>Bode, Emma T.</creatorcontrib><creatorcontrib>Hoellein, Timothy J.</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Water research (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Barrows, Abigail P.W.</au><au>Christiansen, Katie S.</au><au>Bode, Emma T.</au><au>Hoellein, Timothy J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A watershed-scale, citizen science approach to quantifying microplastic concentration in a mixed land-use river</atitle><jtitle>Water research (Oxford)</jtitle><addtitle>Water Res</addtitle><date>2018-12-15</date><risdate>2018</risdate><volume>147</volume><spage>382</spage><epage>392</epage><pages>382-392</pages><issn>0043-1354</issn><eissn>1879-2448</eissn><abstract>Microplastic (particles < 5 mm) pollution dynamics are well documented in oceans and increasingly studied in freshwater. We used a watershed-scale approach to examine spatial and temporal patterns in microplastic concentrations in the Gallatin River watershed (Montana, USA). At 72 sites, trained volunteers collected ∼1-L grab samples at 4 seasons per year over 2 years (n = 714 samples). Microplastics were found in 57% of the samples (mean = 1.2 particles L−1). The majority of particles were fibers (80%), 0.1–1.5 mm long. Chemical identification determined 93% of particles measured by μFT-IR were synthetic or semi-synthetic materials. Microplastic concentration differed significantly among dates, but showed no longitudinal pattern or relationship to land-use among subwatersheds. At two sites with gaging stations, microplastic was negatively related to discharge when compared across dates. This suggests stormwater is not a source of microplastic in this watershed, but instead dilutes microplastic inputs from other sources. We conclude that microplastic sources are diverse, and measurements of microplastic deposition, resuspension, and transport may be needed to clarify the role of land-use patterns on microplastic pollution. This large scale, citizen science based approach provides a model for future analysis which can further expand microplastic collection at the watershed scale.
[Display omitted]
•Watershed-scale approach examines spatial and temporal microplastic concentration.•Trained volunteers (citizen scientists) collected 714 1L grab samples over 2 years.•No longitudinal pattern found between microplastic concentration and land-use.•Microfibers dominant type of microplastics discovered.•High flow periods may dilute microplastic inputs from point sources.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>30336341</pmid><doi>10.1016/j.watres.2018.10.013</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0001-7616-7227</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0043-1354 |
| ispartof | Water research (Oxford), 2018-12, Vol.147, p.382-392 |
| issn | 0043-1354 1879-2448 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2123717533 |
| source | Elsevier ScienceDirect Journals Complete |
| subjects | Citizen science Microfiber Microplastic Pollution River Watershed |
| title | A watershed-scale, citizen science approach to quantifying microplastic concentration in a mixed land-use river |
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