Hundreds of chemicals could harm kids' developing brains

Environmental exposure from hundreds of industrial chemicals could be damaging the developing brains of children worldwide, but few of the potentially toxic compounds are regulated because too little is known about their effects, researchers say.

In a paper published on-line Wednesday in The Lancet; two specialists in environmental medicine (each of whom have spent decades studying the effects of lead and mercury exposure on the fetus and children) compiled a list of 201 industrial chemicals they say have the capacity to cause irreparable damage to the developing human brain.

Lead author Dr. Philippe Grandjean, chair of environmental medicine at the University of Southern Denmark, said he and co-author Dr. Philip Landrigan of New York's Mount Sinai School of Medicine both had similar experiences while studying the neurotoxicity of lead and mercury.

“First, things were seen in adults and later on, the disease was seen in children born to pregnant women or children exposed in early childhood at much lower doses,” Dr. Grandjean said Tuesday from Copenhagen. “Later on, it was found that these effects were more serious and they were permanent (in children).”