Copper Pressure Treated Wood

On january 1 2004 the wood industry throughout north america has ceased to produce pressure treated wood treated with cca chrome copper and arsenic for residential use replacing this chemical with what is generically called non arsenic treatments primarily acq and copper azole ca both of which contains no arsenic but much more copper.

Copper pressure treated wood.

Protects outdoor wood surfaces against mold mildew rot protects outdoor wood surfaces against mold mildew rot fungi and termites with the copper green brown 14 fl. Easy to use on pressure treated end cuts you want to preserve wood from the elements and from wood eating insects you get the best protection from the very beginning for both above and below ground wood a little preventative maintenance protects your wood longer highlights the weathering process and minimizes risks of future damage. Acq tan or olive acq is the abbreviation for amine or ammonia copper quat and it refers to wood that has been treated with a solution of amine or ammonia copper and a quaternary ammonium compound. Compounds like chromated copper arsenate cca creosote and pentachlorophenol are not registered to treat wood for consumers including use in garden beds.

14 15 18 the risks of using recycled wood treated with cca creosote and pentachlorophenol have not been evaluated by the epa. Until the early 2000s pressure treated wood was typically treated with chromated copper arsenate cca which is an extremely toxic chemical. This wood preservative is ideal for use on end cuts of pressure treated lumber that come into contact with water or soil. Those utility poles i wanted were made this way.

You shouldn t even touch utility poles. Chromated copper arsenate cca is a pesticide that was commonly used up until the early 2000s to protect wood used in outdoor settings from damage by insects fungi and other pests. Certain types of treated wood may be used in backyard projects. The active ingredients commonly used in treated wood are alkaline copper quaternary acq copper azole ca or micronized copper azole mca.

Arsenic is easily absorbed into the body but it does not exit the body nearly as easily. Their primary focus has been cca s heavy concentration of arsenic a known carcinogen. Copper napthenate was first registered in 1951 and is used to brush dip spray and pressure treat wood that will be used in ground contact water contact and above ground such as utility poles docks posts piers fences and landscape timbers. Health concerns for chromated copper arsenate cca pressure treated lumber despite cca s track record as an effective economical wood preservative its safety has long been questioned by health and environmental advocates.

The united states environmental protection agency usepa has not banned cca but it is desirable to to take the recommended precautions to limit exposure to cca treated wood because it contains arsenic a known human carcinogen.