| Main Title |
Development of Registration Criteria for Controlled Release Pesticide Formulations. |
| Author |
Cardarelli, Nathan F. ;
Walker, Katherine E. ;
|
| CORP Author |
Beroza (Morton) and Associates, Silver Spring, MD.;Environmental Protection Agency, Washington, DC. Office of Pesticide Programs. |
| Year Published |
1978 |
| Report Number |
EPA-68-01-1922; EPA/540/9-77/016; |
| Stock Number |
PB-291 755 |
| Additional Subjects |
Pesticides ;
Reaction kinetics ;
Manufacturing ;
Additives ;
Degradation ;
Chemical industry ;
Polymers ;
Environmental impacts ;
Manufacturers ;
Fertilizers ;
Plant nutrition ;
Toxicity ;
Membranes ;
Controlled release ;
Procedures ;
State of the art
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-291 755 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
159p |
| Abstract |
This report provides state-of-the-art information on controlled release (CR) pesticide formulations, their efficacy, and materials used in their manufacture. Formulation ingredients and their function are described. Theories of release rate kinetics of various CR systems studied are discussed. 114 pesticides and other agents used in CR applications, 100 materials used in binding matrixes and wall membranes, and 86 additives are listed with their manufacturers, toxicity, and pertinent literature citations. Speculation on degradation products of polymers and additives is offered in the absence of experimental data on environmental effects. Polymers are divided into 15 categories, their properties defined, and degradation rates estimated to provide their environmental persistence. Modes of degradation of these materials are discussed. 20 ASTM test procedures adapted to assessing environmental impact plus other sources of methodology are suggested. 17 procedures in the EPA proposed guidelines (Fed. Reg. 6/25/76) for registering pesticides and other procedures are suggested for study regarding development of appropriate tests for assessing decomposition and aging properties of polymers and additives. Criteria for EPA registration of controlled release products are recommended including efficacy, safety, and toxicological evaluation along with unknown effects of chronic exposure to non-target organisms and systems. |
| NTIS Title Notes |
Final rept.. |
| PUB Date Free Form |
Jan 78 |
| Category Codes |
13B; 7D; 68E#; 99# |
| NTIS Prices |
PC A08/MF A01 |
| Primary Description |
500/01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323757270 |
| Origin |
NTIS |
| Type |
CAT |
