I have no problem telling consumers it's safe. Plants grown in soil touched by CCA-treated wood have the same minuscule exposure levels. For decades CCA-treated wood has been used commercially near crops in the form of tomato stakes, vineyard supports, banana props and mushroom trays. No problems have ever been recorded that indicate that the preservative migrates into plants and causes any health effects. The substantial benefits of CCA-treated wood should not be overshadowed by unfounded scare tactics.
Treated wood offers substantial benefits to consumers and poses no known health hazard.
Critics who claim that treated wood threatens health have no scientific evidence to support their charges.