Record Display for the EPA National Library Catalog


Main Title PRZM-2, a model for predicting pesticide fate in the crop root and unsaturated soil zones : users manual for release 2.0 /
Author Mullins, J. A. ; Carsel, R. F. ; Scarbrough, J. E. ; Ivery, A. M.
Other Authors
Author Title of a Work
Mullins, J. A.
CORP Author AScI Corp., Athens, GA.;Environmental Research Lab., Athens, GA.
Publisher Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1993
Report Number EPA/600/R-93/046; EPA-68-C0-0054
Stock Number PB93-174027
OCLC Number 28906076
Subjects Pesticides--Computer programs ; Groundwater flow--Computer programs ; Soil pollution--Computer programs
Additional Subjects Pesticides ; Computerized simulation ; Path of pollutants ; User manuals(Computer programs) ; Ground water ; Monte Carlo method ; Environmental transport ; Land pollution ; Water pollution ; Soil erosion ; Soil gases ; Irrigation ; Vaporizing ; Soil temperature ; Soil-water-plant relationships ; Vadose water ; PRZM-2 model ; Pesticide root zone models ; Vadose zone flow and transport model
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJED  EPA 600-R-93-046 OCSPP Chemical Library/Washington,DC 03/08/2002
EKCD  EPA/600/R-93/046 CEMM/GEMMD Library/Gulf Breeze,FL 10/23/2018
ELBD ARCHIVE EPA 600-R-93-046 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 600-R-93-046 AWBERC Library/Cincinnati,OH 04/10/1998
EMBD  EPA/600/R-93/046 NRMRL/GWERD Library/Ada,OK 02/03/1995
ERAD  EPA 600/R-93-046 Region 9 Library/San Francisco,CA 11/26/1993
ESAD  EPA 600-R-93-046 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB93-174027 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 1 volume (various pagings) : illustrations ; 28 cm
PRZM-2 links two subordinate models--PRZM and VADOFT--in order to predict pesticide transport and transformation down through the crop root and unsaturated zones. PRZM is a one-dimensional, finite difference model that accounts for pesticide fate in the crop root zone. This release of PRZM-2 incorporates several features in addition to those simulated in the original PRZM code--specifically, soil temperature simulation, volatilization and vapor phase transport in soils, irrigation simulation, microbial transformation, and a method of characteristics algorithm to eliminate numerical dispersion. PRZM is now capable of simulating transport and transformation of the parent compound and as many as two daughter species. VADOFT is a one-dimensional, finite element code that solves the Richard's equation for flow in the unsaturated zone. The user may make use of constitutive relationships between pressure, water content, and hydraulic conductivity to solve the flow equations. VADOFT may also simulate the fate of two parent and two daughter products. The PRZM and VADOFT codes are linked together with the aid of a flexible execution supervisor that allows the user to build loading models that are tailored to site-specific situations. In order to perform probability-based exposure assessments, the code is also equipped with a Monte Carlo pre- and post-processor.
"March 1993." "EPA/600/R-93/046." Includes bibliographical references.