Researchers at Duke University have confirmed the “high toxic activity” of piperonyl butoxide (PBO), a chemical “synergist” that is used to increase the potency of more than 700 insecticides. Last year, researchers at Columbia University found that infants whose mothers had been exposed to low levels of PBO in the air during pregnancy had impaired cognitive and motor development by the age three.
PBO is listed among the top 10 chemicals detected in indoor dust. Dust is a significant route of exposure to children, who play on the floor and repeatedly put objects and their hands in their mouths.
Among the many household insecticides that contain PBO:
Raid Commercial Flying Insect Killer
Raid Flea Killer Plus
Ortho Tomato & Vegetable Insect Killer
Bonide Mosquito Insect Spray
Terro Insect Killer