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The project "Catch up manoeuvre old pesticides" has resulted in a summary of the environmental aspects of 152 pesticides being marketed in the Netherlands before 1975. In addition to the summary an environmental brieflet was prepared. The underlying report describes the procedure followed and the results obtained in evaluating the environmental impacts of the pesticides. Pesticides are evaluated with respect to their behaviour in soil and in water, effects on organisms in the environment, such as birds, aquatic organisms (algae, crustaceans, and fish), bees, and earth worms, and the bioaccumulating potency. Proposals are put forward for classification systems of some environmental characteristics of pesticides in general. Especially for persistence a classification system is badly needed for a comparison of the pesticides. Carrying out the project several data essentially necessary for the evaluation appeared to be lacking. In the report additional proposals are included to develop the evaluation system for pesticides for example with respect to behaviour in water and air, risk for terrestrial organisms and biomagnification.

The project "Catch up manoeuvre old pesticides" has resulted in a summary of the environmental aspects of 152 pesticides being marketed in the Netherlands before 1975. In addition to the summary an environmental brieflet was prepared. The underlying report describes the procedure followed and the results obtained in evaluating the environmental impacts of the pesticides. Pesticides are evaluated with respect to their behaviour in soil and in water, effects on organisms in the environment, such as birds, aquatic organisms (algae, crustaceans, and fish), bees, and earth worms, and the bioaccumulating potency. Proposals are put forward for classification systems of some environmental characteristics of pesticides in general. Especially for persistence a classification system is badly needed for a comparison of the pesticides. Carrying out the project several data essentially necessary for the evaluation appeared to be lacking. In the report additional proposals are included to develop the evaluation system for pesticides for example with respect to behaviour in water and air, risk for terrestrial organisms and biomagnification.