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Titolo:
Factors affecting pesticide occurrence and transport in a large midwesternriver basin
Autore:
Crawford, CG;
Indirizzi:
US Geol Survey, Indianapolis, IN 46278 USA US Geol Survey Indianapolis INUSA 46278 rvey, Indianapolis, IN 46278 USA
Titolo Testata:
JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION
fascicolo: 1, volume: 37, anno: 2001,
pagine: 1 - 15
SICI:
1093-474X(200102)37:1<1:FAPOAT>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
MISSISSIPPI RIVER; UNITED-STATES; HERBICIDES; ALACHLOR; METABOLITE; ATRAZINE; WATER;
Keywords:
agricultural chemicals; herbicides; insecticides; nonpoint source pollution; pesticides; pollution load; stream pollution; water quality;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
55
Recensione:
Indirizzi per estratti:
Indirizzo: Crawford, CG US Geol Survey, 5957 Lakeside Blvd, Indianapolis, IN 46278 USA US Geol Survey 5957 Lakeside Blvd Indianapolis IN USA 46278 A
Citazione:
C.G. Crawford, "Factors affecting pesticide occurrence and transport in a large midwesternriver basin", J AM WAT RE, 37(1), 2001, pp. 1-15

Abstract

Several factors affect the occurrence and transport of pesticides in surface waters of the 29,400 km(2) White River Basin in Indiana. A relationship was found between pesticide use and the average annual concentration of that; pesticide in the White River, although this relationship varies for different classes of pesticides. About one percent of the mass applied of each of the commonly used agricultural herbicides was transported from the basinvia the White River. Peak pesticide concentrations were typically highest in late spring or early summer and were associated with periods of runoff following application. Concentrations of diazinon were higher in an urban basin than in two agricultural basins, corresponding to the common use of this insecticide on lawns and gardens in urban areas. Concentrations of atrazine, a corn herbicide widely used in the White River Basin, were higher in an agricultural basin with permeable, well-drained soils, than in an agricultural basin with less permeable, more poorly drained soils. Although use ofbutylate and cyanazine was comparable in the White River Basin between 1992 and 1994, concentrations in the White River of butylate, which is incorporated into soil, were substantially less than for cyanazine, which is typically applied to the soil surface.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 05:24:17