...业，采取较其他经济部门为低之劳动基准；另一则是对危及生命之有毒性物质，应建立一套全面性最严格之暴露水平（exposure levels），而这些标准，应对所有生产事业均一体适用。但该建议未被采纳。
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However, much less is known about indoor particulate matter exposure level and associated health risks.
然而,对于室内颗粒物暴露水平及其相关健康风险研究较少。
参考来源 - 北京某小学教室室内颗粒物浓度水平研究·2,447,543篇论文数据，部分数据来源于NoteExpress
适度饮酒的人通常有足够的时间来恢复细胞水平的酒精暴露水平。
Typically, moderate alcohol consumption allows plenty of time for people to recover from that level of alcohol exposure at the cellular level.
现代研究指明孩子们会在很低的暴露水平上受到影响。并且没有安全的暴露水平。
Modern research has shown that children are affected at very low exposure levels and that there is no safe level of exposure.
目的了解我国农村欠发达地区空气污染的状况及农村人群对空气污染的实际暴露水平。
Objective To evaluate the levels and characters of indoor and outdoor air pollution in rural areas of China.
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