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

Title
Analysis and risk assessment of formaldehyde in water from water purification plant in korea
Authors
채효진김현구김승기표희수홍종기
Keywords
formaldehyde; 2,4-DNPH; HPLC/DAD; risk assessment; monitoring
Issue Date
2009-10
Publisher
분석과학; Analytical Science & Technology
Citation
VOL 22, NO 5, 386-394
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 μg/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), 5.15~101.9 μg/L in purified water. Because of noncarcinogen in drinking water, hazard index is calculated with RfD. Results of excess cnacer risk was below 1 and was considered as safe value.
URI
http://pubs.kist.re.kr/handle/201004/36190
ISSN
1225-0163
Appears in Collections:
KIST Publication > Article
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