CCAs haven’t been used for decades. Modern treatments are mostly copper or borate compounds. https://www.epa.gov/ingredients-used-pesticide-products/overview-w

CCAs haven’t been used for decades. Modern treatments are mostly copper or borate compounds. https://www.epa.gov/ingredients-used-pesticide-products/overview-wood-preservative-chemicals https://www.epa.gov/ingredients-used-pesticide-products/over...