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http://dx.doi.org/10.5806/AST.2008.21.1.001

Characteristics of the release of chromium, copper, and arsenic from CCA-treated wood exposed to the natural environment  

Koo, Jinhoi (Department of Environmental Science, Kangwon National University)
Song, Byeongyeol (Department of Environmental Science, Kangwon National University)
Kim, Hekap (Department of Environmental Science, Kangwon National University)
Publication Information
Analytical Science and Technology / v.21, no.1, 2008 , pp. 1-8 More about this Journal
Abstract
This study was conducted to investigate the characteristics of the leaching of metal components from CCA-treated wood during outdoor exposure. CCA-treated wood specimens were placed horizontally or buried vertically into the soil, and then exposed to the natural environment for a year. Wood samples were collected from the side of the horizontal wood specimens using a drill and saw dust samples were collected at the end of the exposure. Soil samples were also obtained around the wood specimens and at different depths of the posts. Wood and soil samples were analyzed for metals using an atomic absorption spectrometer. Monthly metal concentrations varied greatly and more metals were released when wood specimens were exposed vertically than horizontally. Arsenic was released from the wood by 80 % of the intial content. In addition, more leaching was observed from the zone below the ground than above the ground, and soil around the posts was contaminated with metals released from CCA-treated wood.
Keywords
CCA; arsenic; chromium; copper; leaching; wood preservative;
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