|
KMID : 0385520090220050386
|
|
Analytical Science & Technology
2009 Volume.22 No. 5 p.386 ~ p.394
|
|
|
Analysis and risk assessment of formaldehyde in water from water purification plant in korea
|
|
Chae Hyo-Jin
Kim Hyun-Koo
Kim Seung-Ki
Pyo Hee-Soo
Hong Jong-Ki
|
|
|
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.
|
|
|
KEYWORD
|
|
|
formaldehyde, 2, 4-DNPH, HPLC/DAD, risk assessment, monitoring
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|