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http://dx.doi.org/10.14249/eia.2015.24.1.87

Characteristics of Nitrate Contamination of Groundwater - Case Study of Ogcheon Area -  

Park, Ho-Rim (Department of Environmental Engineering, Cheongju University)
Kim, Myeong-Kyun (Department of Civil Engineering, Cheongju University)
Hong, Sang-Pyo (Department of Environmental Engineering, Cheongju University)
Publication Information
Journal of Environmental Impact Assessment / v.24, no.1, 2015 , pp. 87-98 More about this Journal
Abstract
Geochemical characteristics, water quality, $NO_3{^-}$ contamination and the origin of $NO_3{^-}$ were analyzed for the groundwater located at Ogcheon, Korea. The water qualities were weakly acidic to weakly alkalic and redox potentials indicated reduction condition. Compared to granitic rocks, metamorphic sedimentary rocks with intercalations of limestones and dolomites tended to be more effectively dissolved, resulting in higher pH and higher concentrations of dissolved ingredients. Contamination of heavy metals was not revealed. Geochemical reactions of carbonate rocks and influxes of artificial contamination ingredients seemed to simultaneously determine the geochemical characteristics and water qualities in the study area. From the results of ${\delta}^{15}N$ isotope analysis, the origin of $NO_3{^-}$ was estimated to be influenced dominantly by agricultural activities and human feces and urine.
Keywords
geochemistry; factor analysis; $NO_3{^-}$; ${\delta}^{15}N$;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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