Estimating Contributions of Nitrate and Herbicides From Groundwater to Headwater Streams, Northern Atlantic Coastal Plain, United States 1

Autor:	Judith M. Denver, Scott W. Ator
Rok vydání:	2012
Předmět:	Hydrology geography geography.geographical_feature_category Ecology Coastal plain Flux STREAMS Anoxic waters chemistry.chemical_compound Nitrate chemistry Environmental science Groundwater discharge Metolachlor Groundwater Earth-Surface Processes Water Science and Technology
Zdroj:	JAWRA Journal of the American Water Resources Association. 48:1075-1090
ISSN:	1752-1688 1093-474X
Popis:	Groundwater transport often complicates understanding of surface-water contamination. We estimated the regional flux of nitrate and selected herbicides from groundwater to nontidal headwater streams of the Atlantic Coastal Plain (New Jersey through North Carolina) based on late-winter or spring base-flow samples from 174 streams. Sampled streams were selected randomly, and flux estimates are based on resulting population estimates rather than on empirical models, which have been used previously for similar estimates. Base-flow flux in the estimated 8,834 headwater streams of the study area are an estimated 21,200 kg/day of nitrate (as N) and 5.83, 0.565, and 20.7 kg/day of alachlor, atrazine, and metolachlor (and selected degradates), respectively. Base-flow flux of alachlor and metolachlor is
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::79a41fe7ae4d5b271b0cfed0d7d52be2 https://doi.org/10.1111/j.1752-1688.2012.00672.x Zobrazit plný text záznamu Plný text