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Chromated Arsenicals (CCA) | Ingredients Used in Pesticide Products

Chromated arsenicals, which includes chromated copper arsenate (CCA), is a team of pesticides containing chromium, copper, and/or arsenic that safeguard wood versus termites, fungi and other pests that can degrade or threaten the integrity of wood merchandise. Chromated arsenicals-addressed wood is utilised to make commercial wood shake, shingles, long-lasting basis assistance beams and other wood merchandise permitted by authorized labeling. EPA is at this time reevaluating all chromated arsenicals as part of the Registration Evaluate application (see Docket Amount EPA-HQ-OPP-2015-0349 at https://www.restrictions.gov).

Essential Facts

  • Chromated arsenicals has been utilised as a wood preservative pesticide since the 1940s.
  • Chromated arsenicals pesticides are used working with specialized large-force equipment in wood therapy services by qualified pesticide applicators only.
  • Prior to 2004, wood addressed with chromated arsenicals was utilised in residential constructions these kinds of as decks and playsets.
    • In December 2003, chromated arsenicals suppliers voluntarily discontinued manufacturing chromated arsenicals-addressed wood merchandise for property owner utilizes.
    • On the other hand, EPA has not banned chromated arsenicals and does not call for the removal of present constructions made with wood addressed with chromated arsenicals or the bordering soil.
    • If you have an more mature deck or other construction made with chromated arsenicals-addressed wood, making use of a penetrating protecting coating (these kinds of as oil- or drinking water-based mostly stains) on a regular foundation could cut down the leaching of substances.
  • Alternatives to chromated arsenicals-addressed wood include things like the following:
    • Wooden addressed with other preservatives authorized by EPA
    • Wooden-option and composite products and
    • Species of wood that are resistant to pests.

Disposing of Goods Addressed with Chromated Arsenicals Safely and securely

  • While chromated arsenicals pesticide merchandise are not readily available to home owners, folks could come upon wood addressed with chromated arsenicals in a residential setting (e.g., present addressed constructions).
    • Reuse of chromated arsenicals-addressed wood is not topic to regulation by EPA beneath pesticide regulations. 
    • If home owners want to dispose of chromated arsenicals-addressed wood, it can normally be disposed of by common trash selection (i.e., as municipal good squander)
    • On the other hand, point out and nearby governments could have specific steering or recommendations for disposing of addressed wood, so remember to check with your point out or nearby squander administration application.
    • Wooden addressed with chromated arsenicals must not be reused in merchandise these kinds of as mulch.
    • Do not burn up CCA or other preservative-addressed wood in a residential setting to steer clear of doable inhalation of harmful substances in the smoke and ash.
    • Put on goggles and a dust mask when sawing wood addressed with chromated arsenicals, and wash your arms just after managing.
  • The Resource Conservation and Recovery Act (RCRA) is the federal regulation that generates the framework for the proper administration and disposal of dangerous and nonhazardous good squander.

Supplemental Facts

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