Chlorpyrifos is a pesticide that is used to kill a number of pests on crops, animals, and in buildings. In a 2016 report, EPA scientists were not able to find any level of exposure to chlorpyrifos that was safe. The EPA 2016 report states in part "...this assessment indicates that dietary risks from food alone are of concern ..." The report also states that previous published risk assessments for "chlorpyrifos may not provide a ... human health risk assessment given the potential for neurodevelopmental outcomes."