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首页> 外文期刊>Inside EPA's environmental policy alert >Advocates See TSCA Bill's Safety Threshold Upending EPA Cancer Analyses
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Advocates See TSCA Bill's Safety Threshold Upending EPA Cancer Analyses

机译：拥护者看到TSCA Bill的安全阈值颠覆EPA癌症分析

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摘要

Environmentalists are concerned that language in the bipartisan Senate bill reforming the Toxic Substances Control Act (TSCA) could overturn the agency's strict policy for assessing chemicals' cancer risks, which assumes that some chemicals have no safe exposure level and subjects them to conservative risk assessment methods and regulatory limits. The advocates are concerned over language that requires EPA to consider whether chemicals have a safe exposure threshold below which harm does not occur. One source says it is "scientifically impossible" to prove that a chemical does not have a threshold, so language in the bill requiring EPA to consider whether a substance has a threshold is a major win for industry because it would allow them to pressure EPA to use less-conservative assessment methods. "Regulation of a [linear-assessed] carcinogen imposes much stricter limits than the assumption of a threshold," the source says.
机译：环保主义者担心，两党参议院法案中改革《有毒物质控制法案》（TSCA）的用语可能会推翻该机构评估化学品癌症风险的严格政策，因为该假设假设某些化学品没有安全暴露水平，并且要接受保守的风险评估方法和法规限制。倡导者对要求EPA考虑化学品是否具有安全暴露阈值（低于此阈值不会发生危害）的语言感到担忧。一位消息人士说，证明一种化学物质没有阈值是“科学上不可能的”，因此法案中要求EPA考虑某种物质是否具有阈值的语言对工业来说是一个重大胜利，因为这将使他们向EPA施加压力。使用不太保守的评估方法。消息人士说：“对一种[线性评估的]致癌物的规定所施加的限制要比对阈值的假设要严格得多。”

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