Monthly Archives: August 2014

Only a 2-month wait, down from 28 years: New EPA risk assessments find paint stripper chemicals pose significant health risks

Richard Denison, Ph.D., is a Lead Senior Scientist. 

In June, I blogged about the first final risk assessment EPA had issued in 28 years using its authority under the Toxic Substances Control Act (TSCA), for the solvent trichloroethylene (TCE).  Happily, we only had to wait two months for EPA’s TSCA office to issue final risk assessments for three more chemicals.

One of the three is dichloromethane (DCM), also known as methylene chloride.  DCM is a common ingredient of paint strippers, the use on which EPA’s risk assessment focused.  As with TCE, EPA found DCM-laden paint strippers pose significant health risks to workers, consumers and the general public.  Here’s what EPA said in its press release:

The risk assessment for Dichloromethane (DCM), which is widely used in paint stripping products, indicates health risks to both workers and consumers who use these products, and to bystanders in workplaces and residences where DCM is used.  EPA estimates that more than 230,000 workers nationwide are directly exposed to DCM from DCM-containing paint strippers.

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Nothing is forever – and chemical industry trade secret claims shouldn’t be an exception

Richard Denison, Ph.D., is a Lead Senior Scientist. 

A coalition of health, labor, environmental and environmental justice groups (including EDF), represented by Earthjustice, filed a petition today with the Environmental Protection Agency (EPA) that requests EPA establish a limit on how long information on chemicals submitted and claimed confidential by the chemical industry under the Toxic Substances Control Act (TSCA) can be protected from disclosure.

The petition asks EPA to close a loophole in its current regulations that by default grants indefinite protection for nearly all chemical information claimed confidential.  Because EPA’s only option under its current regulations is to challenge these claims on a case-by-case basis, industry bears no responsibility to ensure that its claims remain valid over time.  The lack of any expiration date for such claims has contributed to a large backlog of excessive and often unwarranted claims – the protection of which imposes large costs on EPA and the American taxpayer and denies public and market access to information that could lead to better-informed decisions about chemicals.

The petition filed today offers a simple solution, one called for in virtually every internal and external review of EPA trade secret policy conducted over the last several decades (see list at the end of this post):  EPA should alter its regulations to create a “sunset” for confidential business information (CBI) claims, which would expire after a set period of time (5 years is proposed) unless the claimant shows that continued protection is warranted.  This approach would allow true trade secrets to continue to be protected while providing public access to information that no longer warrants trade secret protection.  Read More »

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Twice in 2 weeks: National Academy of Sciences again strongly affirms federal government’s science, agrees formaldehyde is a known human carcinogen

Richard Denison, Ph.D., is a Lead Senior Scientist. 

Just last week I blogged that a panel of the National Academy of Sciences (NAS) had fully backed the National Toxicology Program’s (NTP) listing of styrene as “reasonably anticipated to be a human carcinogen.”

Today a separate NAS panel strongly endorsed NTP’s listing of formaldehyde as a “known human carcinogen” in its 12th Report on Carcinogens (RoC).  As with styrene, this second NAS panel both peer-reviewed the RoC listing and conducted its own independent review of the formaldehyde literature – and in both cases found strong evidence to support NTP’s listing.  See the NAS press release here, which links to the full report.  Read More »

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