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http://dx.doi.org/10.7857/JSGE.2017.22.5.071

Hydrogeochemical Characteristics of Groundwater in the Small Waterworks at Ulju Region, Ulsan  

Kim, Dongsoo (Soil and Groundwater Division, National Institute of Environmental Research)
Kim, MoonSu (Soil and Groundwater Division, National Institute of Environmental Research)
Jo, Sungjin (Soil and Groundwater Division, National Institute of Environmental Research)
Kim, Ikhyun (Soil and Groundwater Division, National Institute of Environmental Research)
Lee, Heonmin (Soil and Groundwater Division, National Institute of Environmental Research)
Hwang, Jongyoen (Soil and Groundwater Division, National Institute of Environmental Research)
Park, Sunhwa (Soil and Groundwater Division, National Institute of Environmental Research)
Jo, Hunje (Soil and Groundwater Division, National Institute of Environmental Research)
Kim, Taeseung (Soil and Groundwater Division, National Institute of Environmental Research)
Kim, Hyunkoo (Soil and Groundwater Division, National Institute of Environmental Research)
Publication Information
Journal of Soil and Groundwater Environment / v.22, no.5, 2017 , pp. 71-81 More about this Journal
Abstract
The hydrogeochemical characteristics of groundwater in the small waterworks are examined with 81 groundwater samples in Ulju region, Ulsan. The pH ranged in 6.3-8.2 and did not exceed the drinking water standards. Electrical conductivity ranged from $50{\mu}S/cm$ to $1,719{\mu}S/cm$. It indicated that the electrical conductivities in groundwaters at the study area are relatively low, compared with other groundwaters in Ulsan area. The calcium concentrations in groundwaters ranged from 3.55 to 113.01 mg/L, and sodium concentrations ranged from 2.02 to 65.50 mg/L. Nitrate concentrations ranged from 0 to 100.56 mg/L and potassium concentrations ranged from N.D (not detected) to 2.50 mg/L. Major cations and anions were mainly derived from the water-rock interaction involving feldspar, gypsum and calcite. The groundwaters were mainly the $Ca-(Na)-HCO_3$ type, classified as the early stage of groundwater evolutions. The correlation between electrical conductivities and Ca concentrations in groundwaters was relatively high ($R^2=0.74$). In the correlations between ions, the correlation coefficient between $SO_4$ and Ca was 0.65 and between Mg and $HCO_3$ was 0.65.
Keywords
Groundwater; Water-rock interaction; Cation; Anion; Correlation analysis;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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