在环境正义案件中识别和评估有毒物质
Xiaowei Xu1, Dapeng Zhang1, Jun Zhang1
1Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of China, Nanjing 210042, China.
Toxics
|January 8, 2025
概括
评估工业废物中的重金属污染表明,化学特异化提供了比单独的总含量更准确的风险评估. 整合多种方法对于精确的环境风险评估至关重要.
科学领域:
- 环境科学 环境科学
- 地质化学 地质化学
- 工业生态学 工业生态学
背景情况:
- 工业固体废物由于含有重金属而造成环境风险.
- 准确评估重金属污染对环境保护和司法实践至关重要.
- 现有的评估方法可能无法完全捕捉与工业固体废物相关的风险.
研究的目的:
- 评估来自长江三角洲的工业固体废物的重金属污染.
- 为了比较各种风险评估方法的有效性,包括总含量和物种指数.
- 强调整合多种评估方法对于准确的环境风险评估的重要性.
主要方法:
- 对四种工业固体废物 (S1-S4) 的分析.
- 应用九种风险评估方法:总含量指数 (例如Igeo,CF) 和物种指数 (例如ICF,GCF).
- 对不同评估方法的结果进行比较分析.
主要成果:
- 基于化学物种与总含量的风险评估结果的显著变化.
- 废物S4显示Pb,Cr (VI),Cu,Ni和As的流动性较高,尽管总含量较低.
- 由于低背景值和高毒性,Cd和Cr (VI) 的差异;多元素指数表明污染比物种化指数高.
结论:
- 化学物种化提供了比总含量分析更细致的重金属风险理解.
- 整合多种评估方法对于准确评估工业废物的环境风险至关重要.
- 调查结果强调,需要在有关工业固体废物管理的司法实践中采取全面方法.
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