Physical and Chemical Properties of Pyrethroids

Agrochemicals undergo analyses of exposure concentrations and persistence to assess the potential impact of the chemicals from release into the environment. The estimates of exposure are compared with relevant toxicity data to characterize the potential risk to classes of organisms undergoing risk analysis. Under regulatory processes in the United States and the European Union, the predictions of exposure are developed from exposure models of varying complexity, using the measurements of an agrochemical’s physical and chemical properties as model input. It is necessary to have knowledge of these properties so that assessment of potential risk can be completed.