Stormwater outlets: A source of microplastics in coastal zones of Cape Town, South Africa

被引：4
|
作者：
Ariefdien, Rushdi [1 ]
Pfaff, Maya [2 ]
Awe, Adetunji [1 ]
Sparks, Conrad [1 ,3 ]
机构：
[1] Cape Peninsula Univ Technol, Dept Conservat & Marine Sci, Cape Town, South Africa
[2] Univ Cape Town, Dept Biol Sci, Cape Town, South Africa
[3] Cape Peninsula Univ Technol, Fac Appl Sci, Ctr Sustainable Oceans, Cape Town, South Africa
来源：
MARINE POLLUTION BULLETIN | 2024年 / 198卷
基金：
新加坡国家研究基金会;
关键词：
Water; Sediment; Biota; Fibres; Cape Peninsula; PLASTIC POLLUTION; BEACH SEDIMENTS; ACCUMULATION; ASSEMBLAGES; PATTERNS;
D O I：
10.1016/j.marpolbul.2023.115800
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The runoff from stormwater outlets are potential sources of microplastics (MPs) in coastal zones. The charac-teristics and concentrations of MPs in coastal water, sediment and biota (mussels, whelks and sea urchins) were measured in summer (2020/2021) (dry season) and winter (2021) (wet season) from three sites (Camps Bay, Mouille Point and Three Anchor Bay) in Cape Town. MPs were characterised visually using a stereo microscope and chemically using spectroscopy. MP concentrations were higher in water and sediment during winter, and higher in biota in summer. Compared to control sites, MPs were higher at all impact sites sampled. MPs extracted were mainly black polyester (PEST) fibres, 1000 to 2000 mu m in length averaging 0.15 MPs/L in water, 52.11 MPs/kg dry weight in sediment and 1.35 MPs/g soft tissue wet weight in biota. The results indicate that coastal stormwater systems are potential sources of MPs in the coastal environment of Cape Town.
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页数：11
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