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http://dx.doi.org/10.7464/ksct.2021.27.2.174

Groundwater Quality Characteristics of Pollution Concerned Area in Gyeongnam Using Groundwater Quality Monitoring Data  

Cha, Suyeon (Department of Production Technology and Engineering, Graduate School of Convergence Science and Technology, Gyeongsang National University)
Seo, Yang Gon (Department of Chemical Engineering/RIGET, Gyeongsang National University)
Publication Information
Clean Technology / v.27, no.2, 2021 , pp. 174-181 More about this Journal
Abstract
This study analyzed the groundwater quality characteristics according to the main source of pollution and quarter (season) by using data from the pollution exclusive monitoring network in the Gyeongsangnam-do area for five years (2013-2017). The main source of pollution was the industrial complex areas, waste mines, and sewage treatment facilities. The analysis items were field measurement items (water temperature, pH, electrical conductivity, dissolved oxygen, oxide reduction potential), positive ions, and negative ions. Water temperature and pH did not vary significantly according to the main source of pollution. In industrial complex areas, the value of electrical conductivity was the highest, and dissolved oxygen value was the lowest. The mean concentration of positive and negative ions was the largest in industrial complex areas, followed by sewage treatment facilities and waste mines. It was shown that the concentration of sodium ion was the highest in industrial complex areas and calcium ion in waste mines and sewage treatment facilities. The concentration of bicarbonate ion was the highest in all main sources of pollution. Water temperature, pH, and concentrations of cations and anions did not vary significantly from quarter to quarter. Of the water quality types, the Na-HCO3 type accounted for the highest proportion, but the Na-Cl type, which has a high possibility of external contamination, accounted for about 20% of the total data in the pollution exclusive monitoring network.
Keywords
Groundwater quality; Pollution exclusive monitoring network; Main pollution source; Quarter;
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