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Priority Management Using the QGIS for Sources of Contaminated Soil in Gyeonggi-do Province

QGIS를 이용한 경기도내 토양오염원의 중점관리 지점 선정

  • 손영금 (경기도보건환경연구원북부지원) ;
  • 김지영 (경기도보건환경연구원북부지원) ;
  • 박진호 (경기도보건환경연구원북부지원) ;
  • 임흥빈 (경기도보건환경연구원북부지원) ;
  • 김종수 (경기도보건환경연구원북부지원)
  • Received : 2020.01.13
  • Accepted : 2020.02.10
  • Published : 2020.02.29

Abstract

Object: The purpose of this study was to select priority points for soil management using the location of groundwater and to suggest this method for soil contamination surveys. Method: Groundwater impact range was set to an area of 100 to 500 meters from the center point of agricultural groundwater wells. Data on industrial complex and factory areas, areas of stored or used ores and scrap metals, areas associated with waste and recycling, and traffic-related facilities areas were collected and checked for whether they fall within the groundwater impact range. Longitude and latitude coordinates of these data were mapped on the groundwater impact range using QGIS (Quantum Geographic Information System). Results: Considering the groundwater impact range, the points were selected as follows: 589 points were selected from 6,811 factories and 259 points were selected from 1,511 recycling business points. Traffic-related facility areas were divided between gas stations, bus depots, and auto mechanics. Thirty-four points were selected from 149 bus depots and 573 points were selected from 6,013 auto mechanic points. From the 2,409 gas station points, 323 were selected. Conclusion: Contaminated soil influences groundwater and crops, which can harm human health. However, soil pollution is not easily identified, so it is difficult to determine what has occurred. Pollution must be prevented beforehand and contaminated soil found. By selecting and investigating soil contamination survey points in consideration of the location of groundwater wells, we can safely manage water resources by preventing groundwater contamination in advance.

Acknowledgement

Supported by : 국립환경과학원

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