微塑料的运输和生态风险在沿海入的含水层,基于结合的海水入和微塑料风险评估模型
Guangquan Chen1, Yinqiao Zou1, Guiyao Xiong2
1Key Laboratory of Marine Geology and Metallogeny, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Geology, Qingdao Marine Science and Technology Center, Qingdao 266237, China.
Journal of hazardous materials
|October 9, 2024
概括
海水的入侵驱动了微塑料迁移到沿海地下水层,增加了污染风险. 这项在莱州湾的研究显示,生态风险中等,但微塑料的丰富风险很高.
科学领域:
- 环境科学 环境科学
- 水文地质学 水文地质学
- 海洋污染 海洋污染
背景情况:
- 海水和地下水的相互作用显著影响沿海地区的微塑料运输.
- 沿海含水层越来越多地被认为是微塑料污染的沉降点.
- 了解微塑料迁移途径对于评估生态风险至关重要.
研究的目的:
- 分析海水入侵 (SWI) 和莱州湾 (LZB) 地下水微塑料污染之间的关系.
- 确定在沿海地下水中微塑料的主要来源和迁移模式.
- 优化与SWI相关的微塑料风险评估模型.
主要方法:
- 研究了与莱州湾SWI模式相关的微塑料分布.
- 分析了微塑料的空间数据,并将其与陆地活动相关联.
- 开发并应用了微塑料污染的三级风险评估模型.
主要成果:
- 现代SWI被确定为控制微塑料从海洋区域迁移到含水层的主要因素.
- 发现微塑料沿着SWI路径迁移,并到达古盐水区.
- 渔业,旅游业和农业等近海活动被确定为主要的微塑料来源.
- 风险评估表明,温和的综合生态风险和高的微塑料丰富风险.
结论:
- SWI是沿海地下水微塑料污染的关键过程.
- 沿海活动对地下水系统中微塑料污染作出了重大贡献.
- 该研究为评估类似沿海环境中的微塑料风险提供了一个框架.
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