| Main Title |
Metabolism of Alachlor and Propachlor in Suspensions of Pretreated Soils and in Samples from Ground Water Aquifers. |
| Author |
Novick, N. J. ;
Mukherjee, R. ;
Alexander, M. ;
|
| CORP Author |
Cornell Univ., Ithaca, NY. Lab. of Soil Microbiology.;Environmental Research Lab., Gulf Breeze, FL. |
| Year Published |
1986 |
| Report Number |
EPA-R-809735; EPA/600/J-86/245; |
| Stock Number |
PB87-170379 |
| Additional Subjects |
Acetanilides ;
Soil microbiology ;
Ground water ;
Herbicides ;
Metabolism ;
Leaching ;
Aquifers ;
Ecology ;
Reprints ;
Alachlor ;
Acetanilide/N-(methoxymethyl)-dichloro-diethyl ;
Propachlor ;
Isopropylacetanilide/N-dichloro
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB87-170379 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
7p |
| Abstract |
Suspensions of soils treated in the field with alachlor (2-chloro-2',6'diethyl-N-(methoxymethyl)acetanilide) and propachlor (2-chlor-N-isopropylacetanilide) were tested for their ability to metabolize these herbicides. Less than 8% of (14)C ring-labeled alachlor was mineralized in 30 days at concentrations of 10 and 0.073 micrograms/ml. The soil suspensions mineralized 16-61% and 0.6-63% of ring-labeled propachlor in 30 days at a concentration of 0.025 and 10 micrograms/mL of suspension, respectively. Although soils converted alachlor to organic products, microorganisms able to mineralize the pesticide could not be isolated. Samples from ground water aquifers mineralized less than 1% of the herbicides at the lower concentrations, but four organic products were formed from alachlor. A mixture of two bacteria mineralized 57.6% of ring-labeled propachlor in 52.5 h. A product of the microbial metabolism of propachlor was identified as N-isopropylaniline. These findings suggest that mineralization is a major means for the destruction of propachlor but not for alachlor in soil. (Copyright (c) 1986 American Chemical Society.) |
| Supplementary Notes |
Pub. in Jnl. of Agricultural and Food Chemistry, v34 n4 p721-725 1986. Sponsored by Environmental Research Lab., Gulf Breeze, FL. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Metabolism of Alachlor and Propachlor in Suspensions of Pretreated Soils and in Samples from Ground Water Aquifers. |
| PUB Date Free Form |
c1986 |
| Category Codes |
98A; 98C; 68E |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/04 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
716918538 |
| Origin |
NTIS |
| Type |
CAT |
