title: Comprehensive monitoring of drinking well water quality in Seoul metropolitan city, Korea.
abstract: In this research, the quality of drinking well waters from 14 districts around Seoul metropolitan city, Korea was assessed by measuring a number of parameters with established guideline (e.g., arsenic, fluoride, nitrate nitrogen, benzene, 1,2-dichloroethene, dichloromethane, copper, and lead) and without such criteria (e.g., hardness, chloride ion, sulfate ion, ammonia nitrogen, aluminum, iron, manganese, and zinc). Physical parameters such as evaporation residue (or total dissolved solids) and turbidity were also measured. The importance of each parameter in well waters was examined in terms of the magnitude and exceedance frequency of guideline values established by international (and national) health agencies. The results of this study indicate that among the eight parameters with well-established guidelines (e.g., WHO), arsenic and lead (guideline value of 0.01 mg L(-1) for both) recorded the highest exceedance frequency of 18 and 16 well samples ranging in 0.06-136 and 2-9 mg L(-1), respectively. As such, a number of water quality parameters measured from many well waters in this urban area were in critical levels which require immediate attention for treatment and continuous monitoring.
authors.affiliation: Department of Environment and Energy, Sejong University, Seoul, 143-747, South Korea. khkim@sejong.ac.kr
authors.forename: Ki-Hyun
authors.initials: KH
authors.lastname: Kim
authors.forename: Janice P
authors.initials: JP
authors.lastname: Susaya
authors.forename: Chan Goo
authors.initials: CG
authors.lastname: Park
authors.forename: Jung-Hoon
authors.initials: JH
authors.lastname: Uhm
authors.forename: Jin
authors.initials: J
authors.lastname: Hur
mesh_terms: D002947:Cities; D060766:Drinking Water / Q000737:chemistry*; D004784:Environmental Monitoring / Q000379:methods; D056910:Republic of Korea; D014873:Water Pollutants / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data; D060753:Water Quality / Q000592:standards*; D014881:Water Supply / Q000032:analysis* / Q000706:statistics & numerical data
chemical_list: D060766:Drinking Water; D014873:Water Pollutants