Burning:Incineration of CCA wood does not destroy arsenic. It is incredible, but a single 12 foot 2 x 6 contains about 27 grams of Arsenic - enough arsenic to kill 250 adults.
Burning CCA wood releases the chemical bond holding Arsenic in the wood, and just one Tablespoon of ash from a CCA wood fire contains a lethal dose of Arsenic. Worse yet, Arsenic gives no warning: it does not have a specific taste or odor to warn you of its presence. No one disputes that the ash from burning CCA wood is highly toxic: It is illegal to burn CCA wood in all 50 states. This has serious implications for firefighters, cleanup and landfill operations.