Record Display for the EPA National Library Catalog


Main Title Persistence and Disappearance by Washoff and Dryfall of Methoxychlor from Soybean Foliage - A Preliminary Study.
Author Smith, C. N. ; Payne, Jr., W. R. ; Mulkey, L. A. ; Benner, J. E. ; Parrish, R. S. ;
CORP Author Environmental Research Lab., Athens, GA.
Year Published 1981
Report Number EPA-600/J-81-536;
Stock Number PB82-181827
Additional Subjects Pesticides ; Runoff ; Soybean plants ; Water pollution ; Concentration(Composition) ; Plant tissues ; Rainfall ; Losses ; Statistical analysis ; Chlorine aliphatic compounds ; Aromatic compounds ; Streams ; Estimating ; Reprints ; Pesticide residues ; Methoxychlor
Library Call Number Additional Info Location Last
NTIS  PB82-181827 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 20p
The persistence and disappearance (washoff or dryfall) of methoxychlor from mature soybean (Glycine max) foliage was investigated in a small field plot study under natural rainfall conditions in 1977 and 1978. Residue analyses were conducted using whole plant samples. Methoxychlor washoff rate was 8 + or - 4% of the amount on plants (prior to rain) per centimeter of rainfall, regardless of time after application. Total seasonal washoff for 1978 accounted for 33.5% of the applied pesticide; however, 30.5% of the total loss was removed by washoff on the second day after application. Such algorithms are necessary for estimating runoff losses of insecticides to water bodies.