Of some 84,000 chemicals being used commercially in the United States, some 20 percent -- or 17,000 -- are kept secret not only from the public, but from medical professionals, state regulators and even emergency responders, according to a report at the Washington Post.
And the reason for this potentially harmful lack of openness? Profit.
A 1976 law, the Toxic Substances Control Act, mandates that manufacturers report to the Environmental Protection Agency any new chemicals they intend to market, but manufacturers can request that a chemical be kept secret if disclosure "could harm their bottom line," the Washington Post reports.
Because they are secret, it's impossible to tell how many of the 17,000 chemicals are potentially harmful to people. But the Post notes that, in March of last year, more than half of the "substantial risk" reports filed with the EPA involved secret chemicals.
And chemical makers may be abusing their privilege under the law. According to the EPA, in recent years 95 percent of manufacturers' reports of new chemicals have made some request for secrecy.
http://rawstory.com/2009//01/17000-potentially-harmful-chemicals/