Mar. 18, 2015
The US EPA has announced to extend the public comment period on its revised human health risk assessment for insecticide chlorpyrifos for 45 days, from March 16 to April 30, 2015.
The agency agreed to extend the comment period because of the complexity and length of the risk assessment. This revised human health risk assessment is one of the first assessments informed by physiologically based pharmacokinetic and pharmacodynamic (PBPK/PD) model and a new drinking water watershed approach.
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