美国四分之一的家庭可能超过新土壤指导水平

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Gabriel M Filippelli¹, Matthew Dietrich¹, John Shukle²

¹Department of Earth and Environmental Sciences and Environmental Resilience Institute Indiana University Indianapolis IN USA.

|June 19, 2024

概括

近四分之一的美国家庭可能超过了新的土壤限值. 建议采用更便宜的土壤限制策略,而不是昂贵的大规模减缓.

科学领域:

环境科学环境科学
公共卫生公共卫生
毒理学毒理学毒理学

背景情况:

暴露不成比例地影响低收入社区和有色人种社区.
美国环境保护局 (USEPA) 在2024年1月将住宅土壤检测水平从400降至200 ppm.
土壤中含量升高,对公众健康构成重大风险.

研究的目的:

评估超过新住宅土壤检测水平的家庭的流行率.
评估不同土壤减缓策略的可行性和成本效益.
为减少土壤暴露提出一个可访问和负担得起的解决方案.

主要方法:

分析了成千上万的公民科学收集的美国各地的土壤样本.
对调查结果的推断,以估计国家家庭的影响.
传统缓解与土壤封顶的成本和劳动力比较.

主要成果:

近25%的家庭可能超过了新的土壤检测水平.
这相当于大约有3000万户家庭需要缓解.
传统的缓解成本估计在2900亿美元至1.2万亿美元之间.
用干净的土壤或土覆盖土壤是一个更便宜的替代方案.

结论:

土壤污染的规模需要创新和可行的缓解方法.
土壤封顶是一个立即的,具有成本效益的战略,以减少暴露.
这种方法为弱势社区提供了巨大的好处,而传统方法的成本只占传统方法的一小部分.

关键词:

美国环境保护局 (USEPA)污染污染污染的污染是什么领导领导领导领导领导领导领导领导领导领导中毒中毒中毒土壤土壤土壤土壤土壤

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