Copper Azole Treated Wood Safety

The active ingredients commonly used in treated wood are alkaline copper quaternary acq copper azole ca or micronized copper azole mca.

Copper azole treated wood safety.

Studies have shown that arsenic from wood treated with cca leaches into the soil and that copper although much less toxic leaches from acq and copper boron azole cba a variant of ca b. Follow the safe practices listed below when working with pressure treated wood. Manufacturers are confident of course that these treatments pose no health or environmental problems. Is acq and ca pressure treated lumber safe.

Material safety information copper azole treated wood products page. Follow the safe practices listed below when working with pressure treated wood. Copper azole and alkaline copper quaternary treatments both contain a fungicide. Sally brown a research assistant professor of soils at the university of washington knows her way around both food and metals.

The copper deters insects and the fungicide prevents soil rotting the lumber. However some preservative may migrate from the preserved wood into surrounding soil over time and there may be incidental contact with skin during construction or use. 3 of 4 date of issue. Micronized copper azole penetrates into and remains in pressure treated wood for a long time.

Precautions for use continued personal protection for normal work on dry treated wood a dust mask and goggles should be worn as protection from wood dust when machining or sawing.