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• W3039479929 endingPage "140679" @default.
• W3039479929 startingPage "140679" @default.
• W3039479929 abstract "Microplastics (MPs) have caused great concern worldwide recently due to their ubiquity in the aquatic environment. The current knowledge on the occurrence of MPs in aquaculture fish ponds in a typical estuary system remains meagre. This study investigated the abundance and characteristics (shape, color, size and composition) of MPs in aquaculture water and pond influents in the Pearl River Estuary of Guangzhou, China, using an improved separation method. The bulk sampling and improved separation method by the combination of ethanol and polyaluminum chloride (PAC) significantly increased the MP separation efficiency, especially for particles with size less than <333 μm. The investigation results showed that MPs were detected in all water samples of fish ponds at two experimental stations with abundances of 10.3–60.5 particles/L (S1) and 33.0–87.5 particles/L (S2), respectively. Moreover, the average abundance of MPs in aquaculture water (42.1 particles/L) exhibited higher value than that in pond influents (32.1 particles/L). Most of MPs were colored and fibrous in appearance. MPs with the size range of <1000 μm (56.3–87.7%) prevailed in aquaculture water. MPs with size <333 μm that usually ignored in most studies were detected with percentage of 43.7% at S1station and 33.2% at S2 station, respectively. The small-sized MPs (<100 μm) in aquaculture water (23.7% at S1 station and 14.6% at S2 station) were more abundant than those in pond influents (7.2% at S1 station and 2.5% at S2 station). The main composition of MPs was polypropylene (PP) and polyethylene (PE). These findings indicated a high level of MP pollution in aquaculture fish ponds. The MPs originated from the Pearl River Estuary were accumulated in aquaculture fish ponds. This study provides an insight into MP pollution in aquaculture fish ponds at a typical estuarine system and highlights the load of MPs in the pond influents." @default.
• W3039479929 created "2020-07-10" @default.
• W3039479929 creator A5020005002 @default.
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• W3039479929 date "2020-11-01" @default.
• W3039479929 modified "2023-10-12" @default.
• W3039479929 title "High levels of microplastic pollution in aquaculture water of fish ponds in the Pearl River Estuary of Guangzhou, China" @default.
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• W3039479929 doi "https://doi.org/10.1016/j.scitotenv.2020.140679" @default.
• W3039479929 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32755771" @default.
• W3039479929 hasPublicationYear "2020" @default.
• W3039479929 type Work @default.
• W3039479929 sameAs 3039479929 @default.

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