What is being done about wood treated with CCA (chromated copper arsenate)?
EPA has completed its reregistration eligibility decisions (RED) for the heavy duty wood preservatives chromated arsenicals, pentachlorophenol, and creosote. In general, EPA has determined that the compounds contribute benefits to society and are eligible for reregistration provided the mitigation measures and associated label changes identified in the REDs are implemented and required data are submitted. In its risk assessments, the Agency identified risks of concern associated with occupational exposure (i.e., treatment plant workers) to all three preservatives and ecological exposure to pentachlorophenol and creosote.
Chromated copper arsenate (CCA) is a chemical wood preservative containing chromium, copper and arsenic. CCA is used in pressure treated wood to protect wood from rotting due to insects and microbial agents. EPA has classified CCA as a restricted use product, for use only by certified pesticide applicators.
CCA has been used to pressure treat lumber since the 1940s. Since the 1970s, the majority of the wood used in outdoor residential settings has been CCA-treated wood. Pressure treated wood containing CCA is no longer being produced for use in most residential settings, including decks and playsets.
The Agency has completed its reregistration eligibility decision (RED) and will continue to work with stakeholders to implement its decision. Pesticide manufacturers to voluntarily phased out certain CCA use for wood products around the home and in children's play areas. Effective December 31, 2003, no wood treater or manufacturer may treat wood with CCA for residential uses, with certain exceptions.
This information is from the Pesticides: Reregistration: Chromated Copper Arsenate (CCA) Web site. Additional resources can be found at this page, located at: http://www.epa.gov/oppad001/reregistration/cca/
The chemical review manager for CCA is:
However, for additional general information, we suggest that you contact the National Pesticide Information Center (NPIC). You may reach the hotline toll free by calling 1-800-858-7378, 6:30 A.M. - 4:30 P.M. (PT), 7 days a week. They may also be contacted via e-mail at firstname.lastname@example.org. The URL for their Web site is: http://npic.orst.edu/
The NPIC is an EPA-sponsored hotline which provides a variety of impartial information on all pesticides. NPIC provides chemical, health and environmental information on the 600+ active ingredients incorporated into over 50,000 different pesticide products, toxicological information, product label information, cleanup and disposal procedures, and general information on the regulations of pesticides in the United States. The NPIC also receives complaints about pesticides and pesticide applications. They should be able to help with your request.
External Links Disclaimer: Please be aware that links to non-EPA sites do not imply any official EPA endorsement. Furthermore, EPA does not accept any responsibility for the opinions, ideas, data or products presented at those locations, or guarantee the validity of the information provided. EPA does not guarantee the suitability of the information for any specific purpose.
- Careers (Jobs and Internships)
- Pollutants and Toxics
- Publications and Documents
- Test Methods
- Web Questions
- Topic #: 23002-22205
- Date Created: 7/22/2004
- Last Modified Since: 4/10/2013
- Viewed: 688