Chromated Arsenicals (CCA) | Ingredients Used in Pesticide Products

Chromated arsenicals, which features chromated copper arsenate (CCA), is a group of pesticides made up of chromium, copper, and/or arsenic that shield wood towards termites, fungi and other pests that can degrade or threaten the integrity of wood items. Chromated arsenicals-addressed wood is applied to create professional wood shake, shingles, lasting foundation help beams and other wood items permitted by accepted labeling. EPA is at this time reevaluating all chromated arsenicals as component of the Registration Overview method (see Docket Variety EPA-HQ-OPP-2015-0349 at

Simple Details

  • Chromated arsenicals has been applied as a wood preservative pesticide considering that the nineteen forties.
  • Chromated arsenicals pesticides are applied applying specialised large-stress devices in wood treatment method facilities by qualified pesticide applicators only.
  • Prior to 2004, wood addressed with chromated arsenicals was applied in household constructions these types of as decks and playsets.
    • In December 2003, chromated arsenicals manufacturers voluntarily discontinued manufacturing chromated arsenicals-addressed wood items for house owner uses.
    • Having said that, EPA has not banned chromated arsenicals and does not have to have the removing of existing constructions designed with wood addressed with chromated arsenicals or the surrounding soil.
    • If you have an more mature deck or other composition designed with chromated arsenicals-addressed wood, implementing a penetrating protective coating (these types of as oil- or water-based stains) on a typical basis could lessen the leaching of chemical compounds.
  • Alternatives to chromated arsenicals-addressed wood include the subsequent:
    • Wooden addressed with other preservatives accepted by EPA
    • Wooden-substitute and composite resources and
    • Species of wood that are resistant to pests.

Disposing of Products Treated with Chromated Arsenicals Properly

  • Even though chromated arsenicals pesticide items are not accessible to house owners, people could experience wood addressed with chromated arsenicals in a household setting (e.g., existing addressed constructions).
    • Reuse of chromated arsenicals-addressed wood is not subject matter to regulation by EPA beneath pesticide rules. 
    • If house owners require to dispose of chromated arsenicals-addressed wood, it can typically be disposed of by regular trash selection (i.e., as municipal stable waste)
    • Having said that, condition and nearby governments could have particular advice or guidance for disposing of addressed wood, so you should check with your condition or nearby waste management method.
    • Wooden addressed with chromated arsenicals should really not be reused in items these types of as mulch.
    • Do not burn up CCA or other preservative-addressed wood in a household setting to keep away from attainable inhalation of harmful chemical compounds in the smoke and ash.
    • Have on goggles and a dust mask when sawing wood addressed with chromated arsenicals, and wash your hands after managing.
  • The Source Conservation and Recovery Act (RCRA) is the federal legislation that produces the framework for the appropriate management and disposal of hazardous and nonhazardous stable waste.

Further Details

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