Copper, chromium, and arsenic levels in soil near highway traffic sound barriers built using CCA pressure-treated wood

In southern Connecticut, soil samples were collected under three sound barriers constructed using chromated copper arsenate (CCA) pressure-treated wood, and concentrations of chromium, Cu, and arsenic were measured and compared with levels in soil samples collected at various distances from the barr...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2001-08, Vol.67 (2), p.303-308
Main Authors: STILWELL, D. E, GRAETZ, T. J
Format: Article
Language:English
Subjects:
Applied sciences
Arsenic
Arsenic - analysis
Biological and physicochemical properties of pollutants. Interaction in the soil
Chromium
Chromium - analysis
Connecticut
Copper - analysis
Exact sciences and technology
Pollution
Soil and sediments pollution
Soil Pollutants - analysis
Traffic accidents & safety
Wood
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Summary:In southern Connecticut, soil samples were collected under three sound barriers constructed using chromated copper arsenate (CCA) pressure-treated wood, and concentrations of chromium, Cu, and arsenic were measured and compared with levels in soil samples collected at various distances from the barriers. Concentrations of all three metals were notably higher in soil samples collected directly under the barriers. Difference among the barriers were found, especially for As. The data suggested, however, that elevation of the metals was restricted to a relatively narrow zone beneath the barriers. Leaching was determined to be the most likely pathway. The possible health risks attributed to the contaminated soils are considered briefly.
ISSN:0007-4861
1432-0800
DOI:10.1007/s001280125