评估大湖生态系统中新兴关注的污染物:十年的方法开发和实际应用
Gerald T Ankley1, Steven R Corsi2, Christine M Custer3
1Great Lakes Toxicology and Ecology Division, US Environmental Protection Agency, Duluth, Minnesota.
Environmental toxicology and chemistry
|August 29, 2023
概括
对大湖地区新出现的污染物 (CECs) 的生态风险评估使用最先进的科学方法进行了先进的评估. 这项研究为管理CEC和保护水生生态系统提供了可操作的见解.
科学领域:
- 环境毒理学环境毒理学
- 生态风险评估 生态风险评估
- 环境化学环境化学
背景情况:
- 评估复杂污染物混合物的生态风险是具有挑战性的,因为许多化合物的检测限制和数据缺口.
- 新兴关注的污染物 (CECs) 在环境风险评估中构成了重大挑战.
- 化学,毒理学和生物信息学的进步为评估CEC提供了新的工具.
研究的目的:
- 描述了长达十年的多机构努力,以评估北美大湖中CEC的发生和生态影响.
- 整合最先进的科学方法和模型,以便对CEC进行全面评估.
- 为负责大湖环保的风险评估人员和管理人员产生可操作的见解.
主要方法:
- 在所有五大湖的约200条支流中进行了广泛的现场采样,覆盖了700多个地点.
- 在各种环境矩阵中测量了多达500个目标分析物.
- 使用各种实验系统评估生物效应,包括鸟类,鱼类和无脊椎动物的实验室和实验室暴露,评估从分子到顶点水平的反应.
主要成果:
- 在整个大湖盆地,就700多个CEC的发生和影响生成了一个全面的数据集.
- 综合数据使用精心策划的知识库和模型来识别关键风险并告知管理策略.
- 该研究为大湖生态系统中CEC的风险评估和缓解提供了可操作的见解.
结论:
- 综合方法显著提高了对CEC在大湖地区构成的生态风险的务实评估.
- 这些发现为改善风险管理和关于CEC的监管决策提供了基础.
- 这一多机构的努力证明了解决大型水生生态系统中复杂环境污染物的成功模式.
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