The Pharos Project is a project of the Healthy Building Network. HBN is:

In Vermont:
Melissa Coffin, Bill Walsh

In California:
Tom Lent

In Washington, DC:
Larry Kilroy, Sarah Gilberg, Sarah Pickell, Susan Sabella

In Maine:
Jim Vallette

CONGRESS PASSES CA-BASED FORMALDEHYDE LIMITS FOR COMPOSITE WOOD

 

The US Congress has approved legislation[1] to limit allowable emissions of formaldehyde from composite wood products, specifically hardwood plywood, particleboard and medium-density fiberboard sold in the United States. The new limits in are based on the levels established for the State of California in 2007 by the California Air Resources Board (CARB).

This is good news for reducing the serious toll that this known carcinogen takes on human health through widespread exposures in homes, offices and schools from building materials. The legislation should serve as a strong wake up call to the industry and help increase availability of low-formaldehyde and formaldehyde-free materials for the green designer. It is, however, only one piece of the puzzle in getting formaldehyde out of our buildings.

Although the regulations list emissions standards that kick in as early as July of 2011 and 2012, the EPA has two and a half years – until January 2013 – to promulgate regulations to implement the standards and retailers will be allowed to “sell-through” their inventory even beyond that point. Exemptions abound, including hardboard, structural plywood, structural composite lumber, OSB, glue-lams and wood I-joists, finger-jointed lumber, wood packaging, plus some exceptions for windows, exterior and garage doors, vehicles, boats and aircraft. Other important areas of formaldehyde use in building products, such as insulation and textiles, are not addressed by the legislation.

Finally, the new federal legislation reduces formaldehyde emissions but does not eliminate them.  The California Air Resources Board says bluntly that there is no known safe level for this carcinogen and avoidance is the best approach. There is a labeling option in the federal legislation for indicating “no-added formaldehyde-base binder,” but formaldehyde-based binders will still be widespread in products after this legislation goes into effect. So although this legislation will represent an important step for reducing the health impacts of formaldehyde in buildings, smart designers will continue to use Pharos to find and evaluate the increasing number of products available across categories that avoid all added formaldehyde.

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[1] S. 1660: Formaldehyde Standards for Composite Wood Products Act 

Tom Lent is a researcher with the Pharos Project and the policy director of the Healthy Building Network.

Comments

There are 2 comments.

  
Composite wood is the tip of the iceberg. Dispersants are used in many cement and gypsum material applications to help particles move past each other and flow. Based on the cost, it is reasonable to assume many are using sulphonated melamine-formaldehyde or naphthalene sulfonate dispersants, both of which use formaldehyde in their production. These resin materials are stable under normal conditions and should not release formaldehyde, but there may be residual formaldehyde left from manufacturing that is not completely stripped. Casein based systems also may oxidize and off-gas formaldehyde.

  
There are some more toxic chemicals obtaining in day-to-day life. Action needs to be taken globally. http://jdbapat.blogspot.com

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