The Pesticide Flooded Application Model (PFAM) is used by the USEPA to estimate pesticide concentrations in surface water from the use of pesticides in flooded fields, such as rice paddies. PFAM simulates water and pest management practices, pesticide degradation in soil and aquatic environments, as well as discharge of paddy waters to a stream, index reservoir, farm pond, or user-defined mixing cell. Here, we present the progress in developing conceptual models and scenarios to use with PFAM for estimating pesticide exposure to human health (drinking water) and aquatic organisms. Monitoring data were used in the evaluation and development of conceptual models. Concentration-adjustment bias factors for estimating a true peak concentration were applied to monitoring results with a less than daily sampling frequency.

Development of conceptual models for estimating aquatic exposure from the use of pesticides on rice using the Pesticide Flooded Application Model

248th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.