ABSTRACT

Chromated-Copper-Arsenate Wood Preservative ..........................291 16.3 Effects of Coating on Chromated-Copper-Arsenate

Leaching in a Soil Environment .................................................................293 16.3.1 Experimental ..................................................................................293 16.3.2 Arsenic Leached.............................................................................295 16.3.3 Copper Leached .............................................................................297 16.3.4 Chromium Leached........................................................................298 16.3.5 Variation in Chromated-Copper-Arsenate

Leaching within Treatments...........................................................300 16.4 Conclusions .................................................................................................301 References..............................................................................................................301

For many years chromated copper arsenate (CCA) was the predominant formulation used in the pressure treatment process to preserve wood from decay and insect damage. A number of investigations, however, have shown that varying amounts of