Analysis and risk assessment of formaldehyde in water from water purification plant in korea

국내 정수장 먹는 물 중 폼알데히드 함유실태 조사 및 위해성 평가 연구

  • Chae, Hyojin (Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology) ;
  • Kim, Hyun Ku (Drinking water division, National Institute of Environmental Research, Environmental Research Complex) ;
  • Kim, Seungki (Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology) ;
  • Pyo, Heesoo (Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology) ;
  • Hong, Jongki (Department of Pharmaceutical Sience, Kyung Hee University)
  • 채효진 (한국과학기술연구원 생체대사연구센터) ;
  • 김현구 (국립환경과학원 먹는물연구과) ;
  • 김승기 (한국과학기술연구원 생체대사연구센터) ;
  • 표희수 (한국과학기술연구원 생체대사연구센터) ;
  • 홍종기 (경희대학교 기초약학과)
  • Received : 2009.09.28
  • Accepted : 2009.10.09
  • Published : 2009.10.25

Abstract

Formaldehyde is used in lether manufacture, a dry plate and an explosive. It is by-product of ozonizing process in filtration plant. The effects of exposure are eye pruritus, tickle, runing nose, blocking nasal passages and headache. It also makes a dried throat and causes inflammation. It is classified as B1 group for inhalation by US. EPA, which can cause cancer in human. For analysis of formaldehyde, formaldehydes-DNPH derivative was extracted with solid cartridge and was analyzed by High Performance Liquid Chromatography/Diode Array Detector (HPLC/DAD). The detection limit was $3{\mu}g/L$ and the recoveries were 72.3~109.1% (RSD 2.9~11.5%). Water samples were collected in four Korean rivers, four times per year seasonally for 10 years from 1998 to 2007. The monitoring results were 48.8% (630/1291), $5.15{\sim}101.9{\mu}g/L$ in purified water. Because of non-carcinogen in drinking water, hazard index is calculated with RfD. Results of excess cnacer risk was below 1 and was considered as safe value.

Keywords

formaldehyde;2,4-DNPH;HPLC/DAD;risk assessment;monitoring

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