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首页> 外文期刊>Inside EPA's environmental policy alert >EPA Justifies Separate Vapor Screening Guides For Petroleum, Solvents
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EPA Justifies Separate Vapor Screening Guides For Petroleum, Solvents

机译：EPA证明有针对石油，溶剂的单独蒸气筛选指南

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摘要

EPA is laying out its reasons for developing separate vapor intrusion guides for chlorinated hydrocarbons (CHCs) and petroleum hydrocarbons (PHCs), pointing out that the two substances act differently when biodegrading in the subsurface with PHCs presenting a far reduced threat of human exposure than CHCs. However, EPA's Office of Underground Storage Tanks (OUST) warns in a just released white paper "Petroleum Hydrocarbons And Chlorinated Hydrocarbons Differ In Their Potential For Vapor Intrusion," that while petroleum vapor intrusion (PVI) can be mitigated by subsurface conditions, there are situations that can increase the potential for PVI and in turn the threat to human health, justifying screening for potential PVI sites.
机译：EPA阐明了其为氯代烃（CHC）和石油烃（PHC）制定单独的蒸气入侵指南的原因，并指出这两种物质在地下生物降解时的行为有所不同，PHC与CHC相比对人类的威胁要小得多。但是，EPA的地下储罐办公室（OUST）在刚刚发布的白皮书“石油烃和氯化烃的蒸汽入侵潜力不同”中警告说，尽管地下条件可以缓解石油蒸汽入侵（PVI），可能增加PVI潜力并进而威胁人类健康的情况，因此有必要筛查潜在的PVI站点。

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