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action level
1. Concentration of a substance in air, soil, water or other defined medium at which specified emergency counter-measures, such as the seizure and destruction of contaminated materials, evacuation of the local population or closing down the sources of pollution, are to be taken.
2. Concentration of a pollutant in air, soil, water or other defined medium at which some kind of preventive action (not necessarily of an emergency nature) is to be taken.
- 词性: noun
- 行业/领域: 生物学; 化学
- 类别 毒物学
- Company: National Library of Medicine
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创建者
- Walter Lane
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