Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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A study on health risk assessment for small-scale water works in Gyeongnam province from 2014 to 2016

2014~2016년 동안 경남지역 소규모 급수시설에 대한 건강 위해성 평가 연구

  • Park, Ju-Won (Department of Environmental Health, Graduate School of Public Health, Gyeongsang National University) ;
  • Son, Song-Ee (Institute of Animal Medicine and College of Veterinary Medicine, Gyeongsang National University) ;
  • Lee, Hu-Jang (Department of Environmental Health, Graduate School of Public Health, Gyeongsang National University)
  • 박주원 (경상대학교 보건대학원 환경보건학과) ;
  • 손송이 (경상대학교 수의과대학.동물의학연구소) ;
  • 이후장 (경상대학교 보건대학원 환경보건학과)
  • Received : 2018.04.27
  • Accepted : 2018.06.01
  • Published : 2018.06.28
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Abstract

Objectives: This study was investigated the characteristics of small-scale water works (SWW) in Gyeongnam area and conduct a health risk assessment of water-quality inspection items unfitted for water-quality standards (WQS). Methods: The characteristics of SWW in Gyeongnam province were analyzed using the data of SWW in the last three years (2014~2016) published in National Waterworks Information System. In addition, the health risk assessment for inspection items unfitted for WQS was carried out in four steps: hazard identification, dose-response assessment, exposure assessment, and risk characterization. Results: The total number of SWW in Gyeongnam area was gradually decreased from 2014 to 2016. In addition, drinking water sources of SWW were in the order of ground water, valley water, spring water, surface water, and river-bed water. The number of points unfitted for WQS in SWW by year was 22, 45, and 18 in 2014, 2015, and 2016, respectively, and a total of 112 points were found to unfit for WQS in SWW during 2014~2016. The hazard quotient (HQ) for fluoride, nitrate nitrogen, boron in the unfitted points for WQS was more than 1.0, and the mean values for turbidity and color in points unfitted for WQS were 2.38 nephelometric turbidity unit and 16.25 color unit, respectively. Conclusions: The HQ for fluorine, nitrate nitrogen and boron was more than 1.0 in points unfitted for WQS among SWW in Gyeongnam area, and the turbidity and the color degree exceeded WQS, which mean that there is a possibility of harmful impacts on the human health.

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