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| chemical pollutant; chemical in the environment; chemical in the environment The presence in the environment of any solid, liquid or gaseous material discharged from a process and that may pose substantial hazard to human health and the environment | |||
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| chemical pollutant; chemical in the environment; chemical in the environment The presence in the environment of any solid, liquid or gaseous material discharged from a process and that may pose substantial hazard to human health and the environment | |||