Chromated arsenicals, which include chromated copper arsenate (CCA), are a group of pesticides containing chromium, copper, and/or arsenic that protect wood against termites, fungi, and other pests.
In December 2003, chromated arsenicals manufacturers voluntarily discontinued manufacturing their product for homeowner use. CCA is still in use in industrial applications such as utility, highway, marine,
agricultural, and heavy construction.
Uses: Agricultural, guard rails, signposts, utility poles, marine
Species: Douglas-fir, Hem fir, Southern Yellow Pine, Spruce-Pine-Fir