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German BfR calls for reassessment of the human health risksrisk on toxic insecticide
date:Jul 14, 2012
ironmental Protection Agency (EPA) revised toxicological reference values for chlorpyrifos, after reviewing new studies and data on the toxicity of the insecticide.

Of particular significance was a study (Marty Andrus 2010) that measured acteylcholinesterase (AChE) inhibition in rats, after acute and repeated exposure to chlorpyrifos. In this study, the NOAELs (highest experimental dose at which no adverse effects were observed) were 2mg/kg for the brain and 0.5mg/kg for red blood cells.

The

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