Occurrence and size distribution of microplastics in mudflat sediments of the Cowichan-Koksilah Estuary, Canada : a baseline for plastic particles contamination in an anthropogenic-influenced estuary

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dc.contributor.author
Alava, Juan José
Kazmiruk, Tamara N.
Douglas, Tristan
Schuerholz, Goetz
Heath, Bill
Flemming, Scott A.
Bendell, Leah
Drever, Mark C.
dc.date.accepted
2021-10-02
dc.date.accessioned
2025-04-03T19:43:32Z
dc.date.available
2025-04-03T19:43:32Z
dc.date.issued
2021-10-13
dc.date.submitted
2021-08-31
dc.description.abstract - en
Globally, large plastics and microplastics are ubiquitous pollutants in marine environments and coastal areas (Bergmann et al., 2015; Jambeck et al., 2015; Lebreton et al., 2017), and have reached unprecedented levels in the oceans (Bergmann et al., 2017; Eriksen et al., 2014; Kane et al., 2020; Lebreton et al., 2018). Coastal and estuarine environments in particular often contain the highest levels of microplastics because of their proximity to human settlements, and estuaries experience conditions such as wave action that facilitates the breakdown of macroplastics into smaller microfragments, with the exception of microfibers which occur mostly as fibers. As our understanding of the prevalence of microplastics and their impacts on marine-coastal ecosystems and the species that inhabit them grows it is becoming increasingly important to document baseline levels in areas with unique hydrological processes to assess risks to local wildlife (Browne et al., 2007; Browne et al., 2010; Andrady, 2011; Ross and Morales-Caselles, 2015; Bergmann et al., 2015). Microplastics are defined as plastic particles that are < 5 mm (i.e., < 5000 μm) in size, and can be separated into two categories: 1) primary microplastics that are deliberately manufactured (e.g., microbeads in cosmetics, industrial cleaners or virgin resin pellets for manufacturing and nurdles); and 2) secondary microplastics that are by-products, or break-down products, of larger plastics (i.e., polymers > 5mm), such as clothing, ropes, bags and bottles (Moore, 2008, GESAMP, 2010, Browne et al., 2007, Andrady, 2011, Duis and Coors, 2016). Most microplastics originate from terrestrial sources (e.g., household and industrial waste and wastewater), although these pollutants can also be released from marine activities (e.g., fishing, shipping) (Browne et al., 2007, Duis and Coors, 2016).
dc.identifier.issn
1879-3363
0025-326X
dc.identifier.uri
https://open-science.canada.ca/handle/123456789/3554
dc.language.iso
en
dc.publisher - en
Elsevier
dc.relation.isreplacedby
https://doi.org/10.1016/j.marpolbul.2021.113033
dc.rights - en
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.rights - fr
Creative Commons Attribution - Pas d'utilisation commerciale - Pas de modification 4.0 International (CC BY-NC-ND 4.0)
dc.rights.openaccesslevel - en
Green
dc.rights.openaccesslevel - fr
Vert
dc.rights.uri - en
https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.uri - fr
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.fr
dc.subject - en
Estuaries
Sediments
dc.subject - fr
Estuaire
Sédiment
dc.subject.en - en
Estuaries
Sediments
dc.subject.fr - fr
Estuaire
Sédiment
dc.title - en
Occurrence and size distribution of microplastics in mudflat sediments of the Cowichan-Koksilah Estuary, Canada : a baseline for plastic particles contamination in an anthropogenic-influenced estuary
dc.type - en
Accepted manuscript
dc.type - fr
Manuscrit accepté
local.article.journaltitle - en
Marine Pollution Bulletin
local.article.journalvolume
173
local.pagination
43 pages
local.peerreview - en
Yes
local.peerreview - fr
Oui
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