"The 33-year old law that was supposed to ensure that Americans know what chemicals are in use around them, and what health and safety hazards they might pose, has produced a regulatory black hole, a place where information goes in – but much never comes out.
The reason is that under the 1976 Toxic Substances Control Act (TSCA), the chemical industry has been allowed to stamp a “trade secret” claim on the identity of two-thirds of all chemicals introduced to the market in the last 27 years, according to an Environmental Working Group (EWG) analysis of data obtained from the Environmental Protection Agency (EPA). These include substances used in numerous consumer and children's products."

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