The California Department of Pesticide Regulation's (DPR's) Pesticide Use Reporting (PUR) database provides detailed information on agricultural pesticide use and is an invaluable resource in understanding the spatial and temporal variability in pesticide use in California. Similar information is needed to allow DPR and other stakeholders to conduct local and watershed risk assessments for urban and residential use of pesticides. A geostatistical tool is presented to convert county-level estimates of urban/residential pesticide use into a database having a similar level of resolution to the PUR. The tool utilizes statistical distributions on that characterize application practices and frequency for different demographical environments (e.g. low density urban, medium density urban, recreational facilities, etc.). Sources of information include product labels, surveys, case studies, and interviews with professional applicators, pesticide manufacturers, and other experts. A geographical information system (GIS) is used to convert county-level estimates of a particular pesticide into estimates at the MTRS (meridian/township/range/section) by spatial assignment to detailed land use and census information.

Urban pesticide use support system

239th National Meeting (2010)

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