Mathematical models, environmental fate studies

Computer-aided mathematical modeling is a useful tool to supplement monitoring studies and to evaluate the environmental fate of agrochemicals under various conditions. A simulation procedure with a mathematical model using parameters observed in the monitoring study could be helpful for the interpretation of the data obtained in the study. 

Exposure of an organism to a surfactant in surface water will depend on the amount of material used, disposal practice, removal rate during sewage treatment, dilution in the receiving stream, and sorption on particles or aquatic dissolved organic carbon. The exposure component of an environmental hazard assessment utilizes information from the fate studies described in the previous section, mathematical modeling to predict environmental concentrations, and environmental monitoring to verify model predictions. 

Environmental Fate. Available data make it clear that BCME is not likely to endure in the environment. No further studies appear to be required on fate in water or other moist media (food, soil), since the principal fate is rapid hydrolysis. Additional studies on the kinetics of BCME destruction in air by oxidation and hydrolysis would be valuable in refining mathematical models used to calculate levels of BCME in air around a point source. 

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