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2020 Vol.30, Issue 3 Preview Page

Research Article

Characteristics of Long-term Water Quality Trend of Dongrae Hot Spring

동래온천의 장기적인 수질 변동 특성

Hang-Tak Jeon1
,
Se-Yeong Hamm1*
,
Cholwoo Lee2
,
Jong-Tae Lee3
,
Jeong Rak Lee4
전 항탁1
,
함 세영1*
,
이 철우2
,
이 종태3
,
이 정락4
1Professor, Department of Geological Sciences, Busan National University
2Principal Researcher, Korea Institute of Geoscience and Mineral Resources
3CEO, Korea Central Hot Spring Institute
4CEO, Hana Engineering Co., Ltd.
1부산대학교 지질환경과학과 교수
2한국지질자원연구원 심지층연구단 책임연구원
3(주)한국중앙온천연구소 대표
4(주)하나엔지니어링 대표
*Corresponding Author
30 September 2020. pp. 379-397
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Abstract

In this study, Long-term change of water quality in Donrae Hot Spring was characterized using water quality data from 1922 to 2019. According to Mann-Kendall analysis and Sen's slope using long-term water quality data of Dongnae Hot Spring from 1922 to 2019, temperature, Ca, SiO2, and HCO3 show an increasing trend whereas EC, Na, K, Mg, Cl, and SO4 show a decreasing trend or negligible trend. In addition, the water type of Dongnae Hot Spring stably belongs to Na-Cl type over time. The spatial distributions of water temperature and chemical constituents in 2004, 2009, 2014, and 2019 show variable patterns with showing some difference depending on sampling locations in different years. These results indicate that despite the long-term pumping of the hot spring water, the water quality is quite stable during the entire study period.

Keywords
water quality
Dongrae Hot Spring
Na-Cl type
long-term trend
spatial distribution

본 연구에서는 1922년부터 2019년까지 동래온천수의 장기적인 온천수 수질 변화 특성을 살펴보았다. Mann-Kendall 분석과 Sen의 기울기에 의해서 동래온천수의 장기적인 수질 특성 변화를 분석하면, 온도, Ca, SiO2, HCO3는 증가 추세를 보이는 반면에 EC, Na, K, Mg, Cl, SO4은 감소 추세를 보이거나 또는 거의 추세 변화를 보이지 않는다. 동래온천수의 수질유형은 시간경과에도 변하지 않고 Na-Cl형에 안정적으로 속하고 있다. 2004년, 2009년, 2014년, 2019년의 수질 자료를 이용한 공간 분포도에 의하면, 시기별로 변동을 보이며, 시료 채취 지점에 따라 값의 변화를 보인다. 이는 장기적인 온천수 개발에도 불구하고 동래온천수의 공간적인 수질 특성은 거의 일정하다는 것을 지시한다.

키워드
수질
동래온천
Na-Cl형
장기적인 추세
공간적 분포
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Information
  • Publisher :Korean Society of Engineering Geology
  • Publisher(Ko) :대한지질공학회
  • Journal Title :The Journal of Engineering Geology
  • Journal Title(Ko) :지질공학
  • Volume : 30
  • No :3
  • Pages :379-397
  • Received Date : 2020-09-08
  • Revised Date : 2020-09-24
  • Accepted Date : 2020-09-24
  • DOI :https://doi.org/10.9720/kseg.2020.3.379
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