在大湖附属水域 (2008-2018) 中检测到的化学品的回顾性逐步优先级 (2008-2018)
E M Maloney1, S R Corsi2, M A Pronschinske2
1University of Minnesota-Duluth, Duluth, MN, USA.
Environmental toxicology and chemistry
|March 20, 2025
概括
在长达十年的监测中,大湖水中发现了334种化学物质. 一个优先级框架确定了11种优先级化学品,用于环境管理和进一步研究保护水生生态系统.
科学领域:
- 环境化学环境化学
- 生态毒理学 生态毒理学
- 水生生态学 水生生态学
背景情况:
- 在大湖地区进行了为期十年的化学监测计划,在监测的586种化学物质中检测到334种.
- 现有的水质指南不足以进行全面的生态毒性评估.
研究的目的:
- 制定和应用优先级框架,以确定在大湖区潜在的水生生态毒性化学品.
- 通过根据现有数据和潜在风险对检测到的化学品进行分类,为未来的环境管理和研究工作提供信息.
主要方法:
- 采用了逐步优先级框架,整合了水质指南,顶峰毒性数据 (例如,ECOTOX数据库) 和替代数据来源.
- 替代数据包括非尖端效应,体外生物活性和模拟生态毒性.
- 化学品根据数据的可靠性和潜在管理或实验需求被分为行动类别.
主要成果:
- 11种检测到的化学品被确定为各种行动类别的高优先级,包括环境管理,风险评估和基于影响的监测.
- 管理或有针对性的风险评估优先考虑四种化学品,基于影响的监测优先考虑三种化学品,对顶效应的评估优先考虑一个化学品,对非顶效应的评估优先考虑三种化学品.
- 164种化学物质被确定为低优先级,超过一半的化学物质是基于现有的指导方针或顶峰效应来优先考虑的.
结论:
- 开发的优先级框架有效地识别了大湖生态系统中令人担忧的化学物质.
- 结果为监管机构和环境管理人员提供了一种战略方法,以便将资源集中在构成最大生态毒理风险的化学品上.
- 这项研究支持针对性监测,实验评估和对影响大湖生态系统的化学品的风险管理活动.
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