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对于PMT/vPvM物质的淡水生态毒性表征因子

Rahul Aggarwal¹, Gregory Peters¹

¹Environmental Systems Analysis, Chalmers University of Technology, Vera Sandbergs Allé 8, 41296, Gothenburg, Sweden.

|May 22, 2024

概括

本研究计算了持久性,移动性和有毒性 (PMT) 和非常持久和非常移动性 (vPvM) 物质的淡水生态毒性特征因子,改进了生命周期评估. 与现有数据库的差异凸显了更新生态毒性数据的必要性.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
生命周期评估生命周期评估

背景情况:

持久性,移动性和有毒性 (PMT) 和非常持久和非常移动性 (vPvM) 的物质构成生态毒理学风险.
描述因素 (CF) 对于将这些风险整合到生命周期评估 (LCA) 中至关重要.
对于PMT/vPvM物质的淡水生态毒理学CF存在差距.

研究的目的:

通过实验计算德国环境署 (UBA) 确定的PMT/vPvM物质的淡水生态毒性CF.
将这些新计算的CF与USEtox数据库中可用的CF进行比较.
为了解决数据的局限性,并提高对PMT/vPvM物质对淡水生态系统的影响的理解.

主要方法:

使用了343种PMT/vPvM物质的扩展UBA清单,与474种REACH注册化学品相关.
计算了244种独特化学结构的淡水生态毒性CF.
与USEtox数据库交叉引用计算的CF,确定了107个重叠的CF和137个新的CF.

主要成果:

在343种 (72%) PMT/vPvM物质中,成功确定了244种CF (72%).
在USEtox数据库中没有发现137个新的淡水生态毒性CF.
观察到计算的CF和USEtox值之间存在显著差异,主要是由于生态毒性数据的变化.

结论:

该研究为UBA列出的大量PMT/vPvM物质提供了重要的淡水生态毒性CF.
数据稀缺仍然是对这些危险物质进行全面的CF计算的关键障碍.
定期更新生态毒性数据对于保持LCA中CFs的准确性和相关性至关重要.

关键词:

描述因素是一个表征因子.生态毒性生态毒性生态毒理学影响因子有关PMT/vPvM的物质.美国伊斯坦布尔

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