Americans are exposed to hundreds, if not thousands, of suspected toxic substances every day, substances that affect the development and function of the brain, immune system, reproductive organs or hormones. Children are the most vulnerable. But no public health law requires product testing of most chemical compounds before they enter the marketplace.
Industrial, often toxic, chemicals are everywhere – bisphenol A used in plastic bottles and that lines cans of food; non-stick cooking surfaces or Gore-Tex material that contains perfluorinated compounds; curtains, baby car seats and TV sets manufactured with brominated flame-retardants; and countless cosmetic ingredients, industrial chemicals, pesticides, and other compounds, all of which enter our bodies and remain briefly or for years.
Chemical contamination is so prevalent, Cranor says, "that it will make future human studies more difficult; there will be no clean controls against which to compare people who are contaminated. We are all contaminated. It’s a question of more or less contamination. So it’s going to be increasingly difficult for the science to detect some of these effects in humans, when they exist."
The legal process for identifying adverse health effects and removing the responsible substances from the marketplace is extremely slow, he says.
"The only way to reduce toxic contamination is to require testing of products before they come in to commerce," he says. "If they appear to pose adverse health effects, they should not be permitted, or they should be required to be reformulated so the problems disappear."
Source: University of California – Riverside