Spatial and temporal variations of coastal microplastic pollution in Hong Kong

被引：27

作者：

Tsang, Y. Y. ^{[1
]}

Mak, C. W. ^{[1
]}

Liebich, C. ^{[1
]}

Lam, S. W. ^{[2
]}

Sze, E. T. P. ^{[2
]}

Chan, K. M. ^{[1
]}

机构：

[1] Chinese Univ Hong Kong, Sch Life Sci, Sha Tin, Hong Kong, Peoples R China

[2] Open Univ Hong Kong, Sch Sci & Technol, Kowloon, Hong Kong, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2020年 / 161卷

关键词：

Coastal microplastic pollution; Spatio-temporal variations; Surface waters; Sediments; Hong Kong; PEARL RIVER ESTUARY; YELLOW SEA; GUANGZHOU CITY; MICROBEADS; ABUNDANCE; SEDIMENTS; WATERS; CHINA;

D O I：

10.1016/j.marpolbul.2020.111765

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Further to our 2015-16 investigation, this study revealed the repeated presence of microplastics (MPs) in the coastal environment (Deep Bay, Tolo Harbour, Tsing Yi and Victoria Harbour) of Hong Kong from July 2016 to March 2017. The highest level of MPs in coastal surface water (17,182 particles/100 m(3)) was detected in Tsing Yi. Microplastic abundance in sediments of different sites (59 to 225 plastic particles/kg), however, did not vary significantly. MPs in the size of <= 1 mm were predominated in surface waters (53.3% to 98.6%) and sediments (79.1% to 96.8%). MPs in the shape of pellets and fragments were prevalent in surface waters and sediments respectively. Seasonal pattern of microplastic pollution was consistently observed in Victoria Harbour and Tsing Yi, where the number of MPs was always higher in dry season than in wet season for two consecutive years.

引用

页数：5

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