The OECD has published a revision of the 2003 Emission Scenario Document (ESD) on Wood Preservatives. The document helps to estimate the emissions of substances used in wood preservatives. Application and storage of treated wood prior to shipment and treated wood-in service are looked at. Other stages of the wood preservative life cycle, namely production, formulation, recovery and disposal of waste, are not covered. The estimation of the emissions to the various environmental compartments is based on worst case emission scenarios.
In 1998, OECD Member countries agreed to work together to develop guidance for the exposure assessment of biocides in view of the wide variety of applications associated with these chemicals. The document has been totally restructured, emission scenarios have been updated and new, niche scenarios have been added.