Simulation of carbonfuran and hexazinone movement into groundwater in central Florida using PRZM (Pesticide) Root Zone Model)
PRZM (Pesticide Root Zone Model) was developed to predict movement of pesticides within the plant root zone of soils and below to a depth of 7 m. The model, developed for surface-applied or soil incorporated pesticides, consists of 1) a hydrology component for calculating removal of precipitation by runoff, evapotranspiration, and crop interception, and 2) a chemical transport component for calculating uptake by plants, volatolization, decay, leaching, dispersion, concentration in runoff, retardation, soil solution and solid phase concentrations. Simulations were run for carbofuran, a moderately soluble, highly toxic carbamate insecticide, and hexazinone, a highly soluble, low toxicity triazine herbicide. Simulations and validation field experiments were done on forest sites with deep Typic Quartzipsamment soils overlying the Floridan Aquifer in Central Florida. Implications on use of predicting groundwater contamination and the risks of pesticide use are discussed.
- Research Organization:
- Univ. of Florida, Gainesville (USA)
- OSTI ID:
- 6198752
- Report Number(s):
- CONF-8510489-
- Journal Information:
- Geol. Soc. Am., Abstr. Programs; (United States), Journal Name: Geol. Soc. Am., Abstr. Programs; (United States) Vol. 17; ISSN GAAPB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
580100 -- Geology & Hydrology-- (-1989)
580200* -- Geophysics-- (-1989)
ABSORPTION
AQUIFERS
FEDERAL REGION IV
FLORIDA
GEOLOGIC MODELS
GROUND WATER
HYDROGEN COMPOUNDS
HYDROLOGY
MATHEMATICAL MODELS
NORTH AMERICA
OXYGEN COMPOUNDS
PESTICIDES
POLLUTION
ROOT ABSORPTION
ROOTS
SIMULATION
SOILS
UPTAKE
USA
WATER
WATER POLLUTION