Record Display for the EPA National Library Catalog


Main Title Volatilization losses of pesticides from soils /
Author Farmer, Walter J.,
Other Authors
Author Title of a Work
Letey, John,
CORP Author United States. Environmental Protection Agency. Office of Research and Development.
Publisher Office of Research and Development, U.S. Environmental Protection Agency, For sale by the Supt. of Docs., U.S. Govt. Print. Off.
Year Published 1974
Report Number EPA-660/2-74-054
Stock Number PB-239 325
OCLC Number 01185293
Subjects Pesticides--Environmental aspects ; Soil pollution ; Water--Pollution ; Vapor density
Additional Subjects Pesticides--Environmental aspects ; Soil pollution ; Water--Pollution ; Vapor density ; Vaporizing ; Surface water runoff ; Water pollution ; Soil properties ; Mass flow ; Diffusion ; Chlorine organic compounds ; Adsorption ; Vapor pressure ; Temperature gradients ; Mathematical models ; Computer programs ; Chlorine aliphatic compounds ; DDT ; Path of pollutants ; Lindane ; Dieldrin ; Trifluralin ; Dimethanonaphthalenes
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 660-2-74-054 c.1 Headquarters Library/Washington,DC 01/22/2014
ELBD ARCHIVE EPA 660-2-74-054 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 660-2-74-054 AWBERC Library/Cincinnati,OH 06/22/2007
NTIS  PB-239 325 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 80 pages ; illustrations ; 27 cm.
The volatilization of pesticides following soil application can be predicted from considerations of the physical and chemical principles controlling concentrations at the soil surface. When these concentrations are maintained at a relatively high level, volatilization losses will be determined by the pesticide vapor pressure as modified by adsorptive interactions with the soil. For pesticides which have been mixed with the soil or when volatilization has been proceeding for a time so that concentrations at the soil surface are low, volatilization rates will be determined by the rate at which pesticides move through the soil to the soil surface. Under conditions when mass flow in liquid water is negligible, volatilization rates are predictable using solutions to the diffusion equations. When mass flow is operative the prediction of rates of volatilization are more complex. A computer model has been developed combining both diffusion and mass flow for predicting the volatilization of soil-incorporated pesticides.
"Grant no. 801835; Program element 1BB039; ROAP/TASK 21 AYP 17." Report prepared by Department of Soil Science and Agricultural Engineering, University of California, Riverside, California. Includes bibliographical references (pages 52-54).