Spatial variation of floatable plastic debris and microplastics in the Pearl River Estuary, South China

被引：72

作者：

Lam, Theresa Wing Ling ^{[1
]}

Fok, Lincoln ^{[1
]}

Lin, Lang ^{[2
,3
]}

Xie, Qun ^{[2
,3
,4
]}

Li, Heng-Xiang ^{[2
,3
]}

Xu, Xiang-Rong ^{[2
,3
]}

Yeung, Ling Chun ^{[5
]}

机构：

[1] Educ Univ Hong Kong, Dept Sci & Environm Studies, Tai Po, 10 Lo Ping Rd, Hong Kong, Peoples R China

[2] Chinese Acad Sci, Innovat Acad South China Sea Ecol & Environm Engn, South China Sea Inst Oceanol, CAS Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Peoples R China

[3] Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511458, Peoples R China

[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[5] Greenpeace East Asia, Hong Kong, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2020年 / 158卷

关键词：

Microplastics; Floatable plastic debris; Spatial variation; Surface waters; Estuary; South China; MARINE-ENVIRONMENT; SURFACE-WATER; DEMERSAL FISH; HONG-KONG; POLLUTION; ABUNDANCE; INGESTION; SEA;

D O I：

10.1016/j.marpolbul.2020.111383

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The estuaries of populated catchments have been documented as hotspots of plastic pollution. In this study, microplastics (0.355-5.0 mm) and large plastic debris ( > 5.0 mm) of surface water collected from the Inner Lingding Bay of the Pearl River Estuary (PRE) were quantified and categorized according to their size, shape, colour and composition. Both microplastics and large plastic debris were detected at all sampling sites with mean abundances of 2.376 +/- 0.700 n/m(3) and 0.110 +/- 0.039 n/m(3), respectively. Microplastics constitute 95.4% of the total abundance by number. The average microplastic concentration in the inner PRE was almost 3.5 times higher than that in the central PRE, indicating a positive correlation between plastic concentration and proximity to the river mouth. This result reveals the important role of rivers in transporting plastic debris from land to the oceans.

引用

页数：10

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