Pressure-Treated Wood and CCA | Best Pick Reports
Because pressure-treated wood resists rot and insect infestation, it is
commonly used for fences. Historically, most wood was pressure treated
with chromate copper arsenate (CCA), which has an arsenic component.
The industry has voluntarily stopped using CCA for residential
applications. The EPA suggests that existing CCA-treated structures
should be properly maintained and sealed. More information on CCA is
available from the EPA at www.epa.gov or from the U.S. Consumer Product Safety Commission Consumer Hotline, 800-638-2772.