长江源区水体微塑料组成及分布特征初探

张胜; 潘雄; 林莉; 陶晶祥; 刘敏

doi:10.11988/ckyyb.20200174

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长江科学院院报 ›› 2021, Vol. 38 ›› Issue (4) : 12-18. DOI: 10.11988/ckyyb.20200174

水资源与环境

长江源区水体微塑料组成及分布特征初探

张胜^1,2, 潘雄^1,2, 林莉^1,2, 陶晶祥^1,2, 刘敏^1,2

作者信息 +

Preliminary Study on Composition and Distribution Characteristics of Microplastics in Water from the Source Region of Yangtze River

ZHANG Sheng^1,2, PAN Xiong^1,2, LIN Li^1,2, TAO Jin-xiang^1,2, LIU Min^1,2

Author information +

文章历史 +

摘要

微塑料作为一种新型污染物已在全球范围内引起高度关注。长江源是“中华水塔”,是我国最重要的生态功能区之一,但是对该区域微塑料的污染水平及分布尚不清楚。本研究调查了长江源区河流水体微塑料的污染状况,结果表明:在各采样点中均检测到微塑料,其丰度范围为247~2 686 个/m³,平均丰度为(1 823±949)个/m³;粒径<0.05 mm的微塑料占主导地位,约为总数的70%;96.2%的微塑料形状为碎片,透明色微塑料比例最高;此外,这些微塑料中最常见的聚合物类型是尼龙和聚乙烯,比例均在30%左右。研究表明长江源区正在受到不同种类微塑料的污染,在该区域的微塑料研究应该进一步深入。

Abstract

Microplastics as a type of emerging pollutant has received great concerns worldwide. The source region of the Yangtze River is the “Chinese Water Tower” and is also one of the most important ecological function areas in China; but the pollution level and distribution of microplastics in this area are unclear. In this study we investigated into the microplastics pollution in the surface water of the source region of the Yangtze River. Results unveil that microplastics is detected at different sampling sites, with an abundance range of 247-2 686/m³ and an average abundance of 1 823±949/m³; microplastics with particle size smaller than 0.05 mm were dominant, accounting for about 70%; fragments were observed in all the water samples and were superior in numbers, accounting for about 96.2%; most microplastics were transparent. In addition, the most common types of polymers in microplastics are nylon and polyethylene, both accounting for about 30%. Our results suggest that the source region of the Yangtze River is being polluted by microplastics, and research on microplastics in this region should be deepened.

导出引用

张胜, 潘雄, 林莉, 陶晶祥, 刘敏. 长江源区水体微塑料组成及分布特征初探[J]. 长江科学院院报. 2021, 38(4): 12-18 https://doi.org/10.11988/ckyyb.20200174

ZHANG Sheng, PAN Xiong, LIN Li, TAO Jin-xiang, LIU Min. Preliminary Study on Composition and Distribution Characteristics of Microplastics in Water from the Source Region of Yangtze River[J]. Journal of Changjiang River Scientific Research Institute. 2021, 38(4): 12-18 https://doi.org/10.11988/ckyyb.20200174

中图分类号： X13 X52

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