长江科学院院报

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2021 , Vol. 38 >Issue 4: 12 - 18

DOI: https://doi.org/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 ,
  • 潘雄 ,
  • 林莉 ,
  • 陶晶祥 ,
  • 刘敏
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  • 1.长江科学院 流域水环境研究所,武汉 430010;
    2.长江科学院 流域水资源与生态环境科学湖北省重点实验室,武汉 430010
张 胜(1996-),男,江西赣州人,硕士研究生,主要从事流域水环境保护研究。E-mail: 775976557@qq.com

收稿日期: 2020-03-03

  修回日期: 2020-08-19

  网络出版日期: 2020-08-29

基金资助

中央级公益性科研院所基本科研业务费专项(CKSF2019380/SH,CKSF2017062/SH)

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

  • ZHANG Sheng ,
  • PAN Xiong ,
  • LIN Li ,
  • TAO Jin-xiang ,
  • LIU Min
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  • 1. Basin Water Environmental Research Department, Yangtze River Scientific Research Institute, Wuhan430010, China;
    2. Key Lab of Basin Water Resource and Eco-environmental Science of Hubei Province,Yangtze River Scientific Research Institute, Wuhan 430010, China

Received date: 2020-03-03

  Revised date: 2020-08-19

  Online published: 2020-08-29

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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。

关键词： 长江源区; 水体; 微塑料; 分布特征; 生态安全

本文引用格式

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 . DOI: 10.11988/ckyyb.20200174

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.

Key words： source region of the Yangtze River; water body; microplastics; distribution characteristics; ecological security

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