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Article: Spatio-temporal comparison of neustonic microplastic density in Hong Kong waters under the influence of the Pearl River Estuary

TitleSpatio-temporal comparison of neustonic microplastic density in Hong Kong waters under the influence of the Pearl River Estuary
Authors
KeywordsHong Kong
Microplastics
Pearl River
Plastic debris
South China Sea
Issue Date2018
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenv
Citation
Science of the Total Environment, 2018, v. 628-829, p. 731-739 How to Cite?
AbstractRivers are recognised as an important source of plastic debris in the open sea. The Pearl River in China is estimated to transport 0.1 million tonnes of plastic waste to the open sea annually. However, no empirical study has been conducted to assess the plastic contamination levels in the Pearl River Estuary. Hong Kong is situated in the east of the Pearl River Estuary; its western waters are strongly influenced by river discharge, whereas the eastern waters are unaffected by the freshwater plume. In this study, we quantified the neustonic plastic debris density in the western and eastern waters of Hong Kong. The mean microplastic (0.355–4.749 mm) and large plastic debris (≥4.75 mm) densities in the western side were 3.627 and 0.758 n/m3, respectively. Seasonal comparisons indicated that both size classes of plastic debris were significantly more abundant by number in the rainy season than the dry season (p < 0.001). However, the influence of rivers on plastic density at the sea surface may be highly restricted to the estuarine delta, as no significant spatial difference was found between the western and eastern waters.
Persistent Identifierhttp://hdl.handle.net/10722/263461
ISSN
2017 Impact Factor: 4.61
2015 SCImago Journal Rankings: 1.702
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCheung, PK-
dc.contributor.authorFok, L-
dc.contributor.authorHung, PL-
dc.contributor.authorCheung, LTO-
dc.date.accessioned2018-10-22T07:39:15Z-
dc.date.available2018-10-22T07:39:15Z-
dc.date.issued2018-
dc.identifier.citationScience of the Total Environment, 2018, v. 628-829, p. 731-739-
dc.identifier.issn0048-9697-
dc.identifier.urihttp://hdl.handle.net/10722/263461-
dc.description.abstractRivers are recognised as an important source of plastic debris in the open sea. The Pearl River in China is estimated to transport 0.1 million tonnes of plastic waste to the open sea annually. However, no empirical study has been conducted to assess the plastic contamination levels in the Pearl River Estuary. Hong Kong is situated in the east of the Pearl River Estuary; its western waters are strongly influenced by river discharge, whereas the eastern waters are unaffected by the freshwater plume. In this study, we quantified the neustonic plastic debris density in the western and eastern waters of Hong Kong. The mean microplastic (0.355–4.749 mm) and large plastic debris (≥4.75 mm) densities in the western side were 3.627 and 0.758 n/m3, respectively. Seasonal comparisons indicated that both size classes of plastic debris were significantly more abundant by number in the rainy season than the dry season (p < 0.001). However, the influence of rivers on plastic density at the sea surface may be highly restricted to the estuarine delta, as no significant spatial difference was found between the western and eastern waters.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenv-
dc.relation.ispartofScience of the Total Environment-
dc.subjectHong Kong-
dc.subjectMicroplastics-
dc.subjectPearl River-
dc.subjectPlastic debris-
dc.subjectSouth China Sea-
dc.titleSpatio-temporal comparison of neustonic microplastic density in Hong Kong waters under the influence of the Pearl River Estuary-
dc.typeArticle-
dc.identifier.emailCheung, PK: cpk105@connect.hku.hk-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.scitotenv.2018.01.338-
dc.identifier.pmid29454213-
dc.identifier.scopuseid_2-s2.0-85044787621-
dc.identifier.hkuros294462-
dc.identifier.volume628-829-
dc.identifier.spage731-
dc.identifier.epage739-
dc.identifier.isiWOS:000432462000076-
dc.publisher.placeNetherlands-

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