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首页> 外文期刊>Science of the total environment >Microplastics pollution in the Brahmaputra River and the Indus River of the Indian Himalaya
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Microplastics pollution in the Brahmaputra River and the Indus River of the Indian Himalaya

机译：在婆罗长河和印度喜马拉雅的印度河的微塑料污染

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摘要

Rivers act as temporary sinks of microplastics and a key medium allowing microplastics to enter the ocean. In this study, microplastics pollution in river shore sediment of the Indian Himalaya, including the Brahmaputra River and the Indus River was discussed. Sampling campaigns were performed in years 2018 and 2019. Sample pre-treatment was performed using Na_2WO_4- 2H_2O for density separation and H_2O_2 for oxidation of organic material. Microplastics analysis was performed by using FTIR microscope. The smaller size of microplastics 20-150 μm were more abundant (531-3485 MP/kg in the Brahmaputra River and 525-1752 MP/kg in the Indus River) than microplastics in size range between 150 μm and 5 mm (20-240 MP/kg in the Brahmaputra River and 60-340 MP/kg in the Indus River). Microplastics were found in sediments of all sampling sites. Fragmented, secondary microplastics were dominant in the river shore sediment of the Indian Himalaya. This study contributes towards filling research gap of microplastics in India's freshwater source and highlights the importance of in-depth complete studies of microplastics in the rivers that act as pathways and sinks for microplastics.
机译：河流作为微塑料的临时沉积和允许微薄塑料进入海洋的关键培养基。在这项研究中，讨论了印度喜马拉雅河河岸沉积物的微观污染，包括婆罗蔓河和印度河。采样运动在2018年和2019年进行。使用Na_2WO_4-2H_2O进行样品预处理，用于密度分离和H_2O_2，用于氧化有机材料。使用FTIR显微镜进行微塑料分析。较小的微塑料尺寸20-150μm更丰富（Brahmaputra河中的531-3485mp / kg，并且在梧桐河中525-1752mp / kg）比微薄的尺寸范围为150μm和5 mm（20-240在Brahmaputra河的MP / KG和印度河的60-340千寸/千克）。在所有取样位点的沉积物中发现微塑料。片段化的次要微塑料在印度喜马拉雅山的河岸沉积物中占主导地位。该研究有助于填充印度淡水源微薄塑料的研究差距，突显了深入完全研究微塑料在河流中进行了深入完全研究的重要性，该河流作为微塑料的途径和水槽。

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  • 来源
    《Science of the total environment》 |2021年第1期|147968.1-147968.9|共9页
  • 作者

    Tenzin Tsering; Mika Sillanpaeae; Markus Sillanpaeae; Mirka Viitala; Satu-Pia Reinikainen;

  • 作者单位

    LUT School of Engineering Sciences Lappeenranta-Lahti University of Technology LUT Sammonkatu 12 50130 Mikkeli Finland;

    Department of Chemical Engineering School of Mining Metallurgy and Chemical Engineering University of Johannesburg P. O Box 17011 Doomfontein 2028 South Africa;

    Laboratory Centre Finnish Environment Institute Mustialankatu 3 FIN-00790 Helsinki Finland;

    LUT School of Engineering Sciences Lappeenranta-Lahti University of Technology LUT Sammonkatu 12 50130 Mikkeli Finland;

    LUT School of Engineering Sciences Lappeenranta-Lahti University of Technology LUT Sammonkatu 12 50130 Mikkeli Finland;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Microplastics; River shore sediment; Indian Himalaya; Pollution; Weathering;

    机译：微塑料;河岸沉积物;印度喜马拉雅亚;污染;风化;

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