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微塑料负载如何与长江流域的自然条件和人为活动有关

Siqiong Li¹, Hua Wang¹, Yue He²

¹Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China; College of Environment, Hohai University, Nanjing, 210098, China.

|September 13, 2023

概括

长江流域的微塑料污染普遍存在,由自然条件和人类活动驱动. 上游污染与经济因素有关,而下游污染影响饮用水源.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
河流流域管理河流流域管理

背景情况:

长江流域的微塑料污染需要全面了解,因为数据碎片化.
现有的研究不足以揭示微塑料发生和驱动因素的全部范围.

研究的目的:

构建一个关于长江流域微塑料污染的综合数据集.
分析微塑料的数量,组成和驱动机制.
确定需要有针对性的微塑料减少工作的关键领域.

主要方法:

对20篇出版物的系统审查.
数据过以创建366个微塑料样本的数据集.
整合了来自101个市镇的自然条件和人为活动数据.
多变量统计分析,包括规范化渐进线性回归.
地理信息系统 (GIS) 的空间分析.

主要成果:

在采样地点,微塑料的丰富程度差异很大 (高达5个数量级).
在成都 (上游) 观察到的微塑料含量最高.
微塑料成分的多样性在0.31到0.68之间,略高于全国平均水平.
自然条件和人为活动共同影响了微塑料的分布.
人类活动,特别是GDP,是上游的主要驱动因素.
自然条件和人为活动在中间和下游具有可比的影响.
微塑料污染集中在中间和下游,影响饮用水源.

结论:

人类活动,特别是GDP,是上游的主要驱动因素.
自然条件和人为活动在中游和下游表现出可比的影响.
微塑料污染集中在中间和下游,影响饮用水源,需要有针对性的减少努力.

关键词:

人类产生的人类性.分发方式分发方式分发方式微塑料是一种微塑料.自然的自然的自然的自然的自然长江河流域的江河流域.

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