action level

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The threshold level of contamination, defined in a regulatory programme, that defines when action or a response is formally required. For example, in the US Superfund programme, the action level makes clear when a particular form of contamination is high enough to warrant action or trigger a response under SARA and the NCP. Also in the USA, the Environmental Protection Agency has defined action levels for levels of indoor radon, levels of pesticide residues in foodstuffs, and for other environmental factors.

Subjects: Environmental Science.

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