评估美国与种族相关的空中暴露不平等情况
Mark A S Laidlaw1, Howard W Mielke2, Gabriel M Filippelli3,4
1RCA Australia Newcastle NSW Australia.
GeoHealth
|July 27, 2023
概括
大气中的 (Pb) 度在隔离县高出五倍. 减少土壤尘埃复悬浮对于降低儿童的降低至关重要.
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:
- 之前的研究表明,在隔离的美国县,大气中的 (Pb) 度较高.
- 现有研究表明,调节空气中的Pb排放可以减少儿童的Pb暴露.
- 已经注意到Pb暴露的种族差异,但主要来源需要进一步调查.
研究的目的:
- 调查儿童Pb暴露的来源,重点是土壤尘埃复 suspension.
- 分析社区土壤Pb污染与Pb暴露中的种族差异之间的联系.
- 评估当前Pb排放法规在解决儿童暴露方面的有效性.
主要方法:
- 利用了美国环境保护局 (EPA) 化学品规范网络的数据.
- 分析了来自保护视觉环境机构间监测 (IMPROVE) 监测站的数据.
- 在高度隔离的县和集成良好的县中比较大气中Pb度的平均值.
主要成果:
- 在高度隔离的县,大气中的Pb平均度是与集成良好的县相比高出五倍.
- 有证据表明,遗留Pb在土壤尘埃中的再悬浮是儿童目前Pb暴露的重要来源.
- 暴露于Pb的种族差异与受Pb污染的社区土壤有很强的联系.
结论:
- 土壤灰尘中的遗留Pb,特别是在隔离社区,是儿童Pb暴露的关键因素.
- Pb暴露的种族差异与社区土壤中的环境污染有关.
- 解决土壤Pb污染和再悬浮问题对于减轻儿童Pb暴露和减少健康不平等至关重要.
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