期刊
MARINE POLLUTION BULLETIN
卷 142, 期 -, 页码 243-252出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2019.03.048
关键词
Microplastics; FTIR-ATR; Molluscs; Human risks; Tunisia
资金
- Laboratory of Environment Bio-monitoring, Faculty of Sciences of Bizerte, University of Carthage
Microplastic (MP) pollution was investigated, for the first time, in six commercial molluscs collected from the lagoon of Bizerte during March 2018. The objective of this study was to determine the bioavailability of MPs to marine organisms and their risk for consumers of seafood. MP concentrations varied from 703.95 +/- 109.80 to 1482.82 +/- 19.20 items kg(-1) wet weight. Three types of coloured MPs, including fibres, fragments and films were recovered. Fibres were the most common MP type isolated in each species. The most common size class was 0.1-1 mm. The FTIR-ATR analysis confirmed the presence of two polymer types polyethylene and polypropylene. Our results suggest that MP pollution was widespread and exhibited a relatively high level in commercial molluscs collected from Bizerte lagoon, suggesting trophic transfer in the food web and human exposure risks by diet. More investigations on MPs should be conducted in seafood and other marine organisms.
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