Pesticides tied to lower IQ in children

Studies find effects from chemicals once sprayed in homes and still used on farms

By Janet Raloff, 17:25 PM April 20, 2011

Children exposed in the womb to substantial levels of neurotoxic pesticides have somewhat lower IQs by the time they enter school than do kids with virtually no exposure. A trio of studies screened women for compounds in blood or urine that mark exposure to organophosphate pesticides such as chlorpyrifos, diazinon and malathion.

These bug killers, which can cross the human placenta, work by inhibiting brain-signaling compounds. Although the pesticides’ residential use was phased out in 2000...

Source URL: https://www.sciencenews.org/article/pesticides-tied-lower-iq-children