Arsenic Treated Wood, how bad is it? I think Arsenic Treated Wood should be removed. Chromated arsenical, which includes chromated copper arsenate (CCA) is a group of pesticides containing chromium, copper, and arsenic that protects wood from termites, fungi, and other pests that degrade wood and make a building less safe, but is it really helping or would it be better if your deck collapses from being chewed and degraded by termites than using arsenic on the wood and poisoning you and your family. Chromated arsenicals have been used as a wood preservative pesticide since the 1940s that is a lot of structures treated with dangerous carcinogens. Arsenic treated Wood was used in everything from picnic tables
