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서부경남지역 음용 지하수의 수질특성에 관한 고찰

The Study of Water Characteristics of Drinking Underground Water in the West Gyeong-Nam

  • 박현건 (경남과학기술대학교 환경공학과) ;
  • 정윤호 (경남과학기술대학교 수질검사센터)
  • Park, Hyun Geoun (Department of Environmental Engineering, Gyeongnam National University of Science and Technology) ;
  • Jung, Youn Ho (Water Quality Research Center, Gyeongnam National University of Science and Tech)
  • 투고 : 2013.10.21
  • 심사 : 2014.03.04
  • 발행 : 2014.03.31

초록

본 연구는 2007년 01월부터 2010년 07월까지 서부 경남 내륙지역 및 해안지역의 음용 지하수 1,525건에 대한 지역별 부적합율, 항목별 수질특성, 수질항목 간 상관관계 등의 수질 현황을 조사한 결과는 다음과 같다. 지역별 부적합율을 조사한 결과 지하수 음용수 수질기준을 초과한 부적합율은 내륙지역이 18.2%, 해안지역이 24.5%로 나타났으며, 2가지 이상의 항목이 동시에 불합격한 비율도 내륙과 해안지역이 각각 38.9%, 51.6%로 나타났다. 항목별 수질현황을 조사한 결과 내륙지역 및 해안지역의 부적합 항목 중 총대장균군이 23.8%, 26.6%, 일반세균이 16.1%, 16.0%으로 미생물 항목이 음용부적합 항목의 39.9%, 42.6%로 많은 부분을 차지하는 것으로 조사되었다. 탁도의 경우 내륙 및 해안지역이 12.6%, 11.7%로 나타났고, 알루미늄은 11.9%, 11.7% 등으로 나타났다. 내륙지역의 경우 경도는 증발잔류물과 0.910, 황산이온과 0.819의 상관계수를 보였고, 증발잔류물과 보론이 0.600으로 상관계수를 보였다. 해안지역의 경우 경도와 증발잔류물의 상관계수가 0.919로 나타났으며, 염소이온과는 0.829로 높은 상관관계가 있는 것으로 나타났다.

Water analyses were conducted on 1,525 underground water laid in the western district of Korea's South Gyeongsang Province, from January 2007 until July 2010, according to sections, factors, fountainheads and inter-factor correlativities. The following are the results. 1. As a result of local incongruity rate, 18.2% in inland areas, coastal areas and 24.5% showed a high value comparatively. Costal areas showed high incongruity rate. 2. As a result of local incongruity rate, they were found that the total colony count and general bactria 39.9%, 42.6% showed a high in costal areas. 3. As a result of local factorial inspection, it was found that the turbidity content counted up to 0 to 0.2 NTU in 59.4% in inland areas, 60.2% in costal areas of sections, and in other 12.6%, 14.0%, it exceeded 0.5 NTU. As a result of local factorial inspection, it was found that the nitrate-nitrogen content counted up to 0 to 10 mg/L in 98.2% in inland areas, 97.6% in costal areas of sections, and in other 1.8%, 2.4%, it exceeded 10 mg/L. As regards chloride in coastal areas, water quality standards for chloride 250 mg/L exceeds the 1.4% higher then in inland areas. 4. Hardness in inland areas was closely correlated with total solids (r = 0.910), sulfate ion (r = 0.819). Also, total solids and boron (r = 0.600) showed high correlativities. On the other hand hardness in coastal areas was closely correlated with total solids (r = 0.919), chloride (r = 0.829). Also sulfate ion was closely correlated with hardness (r = 0.599), turbidity and aluminum (r = 0.635) showed high correlativities in this research.

키워드

참고문헌

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