Record Display for the EPA National Library Catalog


Main Title Comparison of pesticide root zone model predictions with observed concentrations for the tobacco pesticide metalaxyl in unsaturated zone soils /
Author Carsel, Robert F., ; Carsel, R. F. ; Nixon, W. B. ; Ballantine, L. G.
Other Authors
Author Title of a Work
Nixon, Will B.
Ballantine, Larry Gene,
CORP Author Environmental Research Lab., Athens, GA. ;CIBA-GEIGY Corp., Greensboro, NC.
Publisher Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1986
Report Number PB87-170361; EPA/600/J-86/246
Stock Number PB87-170361
OCLC Number 1059127223
Subjects Pesticides--Environmental aspects--Florida ; Pesticides--Environmental aspects--Maryland ; Groundwater--Pollution--Florida ; Groundwater--Pollution--Maryland
Additional Subjects Pesticides ; Tobacco plants ; Leaching ; Water pollution ; Ground water ; Soil properties ; Profiles ; Hydrology ; Mathematical models ; Degradation ; Depth ; Comparison ; Risk ; Assessments ; Florida ; Reprints ; Metalaxyl
Library Call Number Additional Info Location Last
ELBD RPS EPA 600-J-86-246 repository copy AWBERC Library/Cincinnati,OH 10/30/2018
NTIS  PB87-170361 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation pages 345-353 : charts ; 28 cm
The pesticide root zone model (PRZM) was developed to evaluate pesticide leaching threats to ground water for different crops under varying climatic conditions, soil characteristics, and cropping practices. In the study, PRZM was evaluated to establish its predictive capability by comparing observed metalaxyl concentration profiles with predicted concentration profiles using field-averaged pesticide data and best estimates for several hydrologic characteristics and pesticide and pesticide transport properties at field sites in Florida and Maryland. Coefficients of determination for the Florida site at 26, 55 and 85 d after application of 0.33, 0.90 and 0.95, respectively, were obtained when field observations were regressed against model predictions.
Includes bibliographical references. EPA/600/J-86/246. "PB87-170361."