Assessment of the Environmental Effects Associated With Wooden Bridges Preserved With Creosote,Pentachlorophenol,or Chromated Copper Arsenate
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2000-09-01
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By Brooks KM
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Abstract:Timber bridge components are treated with chromated copper arsenate type C (CCA), pentachlorophenol or creosote to preserve the life of the structure from a few years to many decades, resulting in reduced transportation infrastructure costs and increased public safety. However, small amounts of the preservative are lost over time. This report describes the concentration of wood preservativeslost to adjacent environments and the biological responses to these preservatives as environmental contaminents. Six bridges in several states were examined for risk assessment.
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