摘要
黄河作为中国的“母亲河”,其流域微塑料(MPs)污染状况及生态风险亟需进行研究分析.为探明黄河流域MPs空间分布与组成特征,建立流域尺度的MPs综合调查评价体系,并基于二维风险评估矩阵,评估流域内部各采样点MPs的绝对生态风险.结果表明,研究区域MPs丰度范围为(0.49~350 280.00)×10^(3) items·m^(-3),平均丰度为(31 050.00±7 740.00)×10^(3) items·m^(-3).在空间分布上,黄河中游区域丰度支流要高于干流,黄河入海口是检出丰度最高的地区.流域MPs尺寸集中在0~1 000μm,形状以纤维和碎片为主,颜色以彩色和透明为主.二维风险评估矩阵的风险指数范围为3~20, 77.78%的区域为高风险等级,其中刘家峡水库作为水源地需要重点关注.
The Yellow River,as the“mother river”of China,urgently needs research and analysis on the MPs pollution status and ecological risks in the Yellow River Basin.The aim of the study was to explore the spatial distribution and composition characteristics of MPs in the Yellow River Basin,establish a comprehensive investigation and evaluation system for MPs at the watershed scale,and based on a two-dimensional risk assessment matrix,evaluate the absolute ecological risk of MPs at each sampling point within the watershed.The results showed that the abundance range of MPs in the study area was(0.49-350280.00)×10^(3) items·m^(-3),with an average abundance of(31050.00±7740.00)×10^(3) items·m^(-3).In terms of spatial distribution,the abundance of tributaries in the middle reaches of the Yellow River was higher than that of the main stream,and the Yellow River estuary was the area with the highest detected abundance.The size of MPs in the watershed was concentrated between 0-1000μm,with fibers and fragments as the main shapes and colored and transparent as the main colors.The risk index range of the two-dimensional risk assessment matrix was 3-20 levels,with 77.78%of the area classified as high-risk.The Liujiaxia Reservoir is a water source area that requires special attention.
作者
杨铮
李梦园
邓正云
桂新
马丽
张发文
YANG Zheng;LI Meng-yuan;DENG Zheng-yun;GUI Xin;MA Li;ZHANG Fa-wen(College of Forestry,Henan Agricultural University,Zhengzhou 450046,China)
出处
《环境科学》
北大核心
2025年第8期5316-5324,共9页
Environmental Science
关键词
微塑料(MPs)
黄河流域
二维矩阵
生态风险评价
赋存特征
microplastics(MPs)
the Yellow River Basin
two dimensional matrix
ecological risk assessment
characteristics of occurrence
作者简介
杨铮(1999-),男,硕士研究生,主要研究方向为微塑料污染赋存特征,E-mail:1457453267@qq.com;通信作者:张发文,E-mail:zhangfawen@henau.edu.cn。
