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标题：Microplastic Pollution in Surface Water of the Chao Phraya River in Ang Thong Area
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作者：Anh Ta ; Sandhya Babel
期刊名称：EnvironmentAsia
印刷版ISSN：1906-1714
出版年度：2019
卷号：12
期号：4
页码：48-53
DOI：10.14456/ea.2019.62
出版社：Thai Society of Higher Eduction Institutes on Environment
摘要：As the top country for plastic production and consumption, Thailand generated more than 3million tonnes of plastic waste in 2016. As a result of improper management, 0.15 to 0.41 milliontonnes of plastic waste entered annually in the aquatic environment in Thailand. In recent years, asmall size of plastic waste in term of microplastics (MPs) became a significant concern due to theirpersistence, ubiquity and potential to play as vectors for transfer organic pollutants to human andbiota. This study reports the concentration of MPs of the Chao Phraya River at Pa Mok District – ahuge agricultural area of Ang Thong Province. MPs were sampled on the river by a manta trawlwith the mesh size of 300 microns. The samples were treated by hydrogen peroxide with the iron(II) sulfate as a catalyst to remove organic components and inspected under a microscope withdifferent size ranges. The total number of MPs were found to be 41.77 particles/m3. The presenceof different types of MPs was confirmed by FTIR spectroscopy, with a predominant abundanceof polypropylene, polyamide 6, and polyethylene. Potential origins of these type of polymers arefrom plastic nets of aquatic farms and plastic films from mulching employed for cultivation.
关键词：Microplastic; Chao Phraya River; Plastic waste; Ang Thong