ABSTRACT

The SETAC (Society of Environmental Toxicology and Chemistry) Technical Workshop on the Derivation and Use of Environmental Quality and Human Health Standards for Chemical Substances in Water and Soil produced the following main conclusions and recommendations:

1) Much standard setting to date has been developed in a piecemeal fashion with little consistency between schemes in the levels of protection sought, the selection of chemicals for which standards may be needed, the methods used to derive them, or the methods used to monitor compliance. These differences can lead to the implementation of substantially different values from the same empirical data, which must mean that their application is either over-or underprecautionary in at least some situations.