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Publication
Impact on non-target organisms of anti-marine wood-borer treatments
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Advisor(s)
Abstract(s)
Treatment of wood with a mixture of copper, chrome and
arsenic salts (CCA) is used to prevent the settlement of woodboring invertebrates. The efficacy of treatment is due to
toxicity to the borers, so there is concern that preservatives
may have undesirable impacts on non-target biota. This study
aims to provide and assess the environmental risk posed by the
use of treated wood in coastal installations. CCA-treated
wood samples have been prepared to target retentions of 12,
24 and 48 kg CCA/m3 of timber. Racks of plasticiser-free
plastic have been prepared on each of which are randomly
arranged two replicates of each target retention plus two
untreated controls. Rates of leaching of CCA components
from these samples are being measured at marine sites in West
Sweden, the South Coast of the UK, the West Coast of
fRance, southern Portugal and Athens.