Estimation of photochemical degradation rates of pesticides in outdoor cosm water : Guidance for inclusion in higher tier exposure assessments of the registration procedure in The Netherlands or at EU level, using the TOXSWA model

Estimation of the degradation rate of plant protection products in water under realistic conditions may be important for correct estimation of exposure concentrations for regulatory purposes. Standardized tests for degradation in water and in water-sediment systems in the laboratory exist, but these do not reflect degradation under field conditions. This is especially true for studies on photolytic degradation; therefore, generally photolytic degradation is not accounted for in the lower tiers of the exposure assessment. The aim of this study is to develop a procedure for the estimation of pho... Mehr ...