Treated-wood preservatives are pesticides that are applied to wood to protect it from insects or fungi. Pesticides are chemicals or other substances produced and sold for the control of pest species. A pesticide may kill the pest or merely inhibit its development. All substances sold to kill, retard, repel or attack pest species are regulated as pesticides.
To reduce the risks associated with the treatment to preserve wood as well as to protect human health and the environment, the Region 8 Pesticides Program recommends the following resources:
- Inorganic Arsenical Pressure-Treated Wood
- Creosote Pressure-Treated Wood
- Alternatives to Chromated Copper Arsenate (CCA)