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Journal of the Korean Society for Environmental Analysis 2012;15(3):188-196.
Monitoring of Volatile Organic Compounds in Nakdong River System and Risk Assessment
낙동강수계 휘발성유기화합물질 모니터링 및 위해성 평가
허성남, 임영경, 천세억, 이재관, 이인정, 임태효
국립환경과학원
Abstract
In this study, fifteen volatile organic compounds (VOCs) were analyzed by purge & trap (P&T) and gas chromatography/mass spectrometer (GC/MS). Method detection limit (MDL) and limit of quantification (LOQ) were determined in the range of 0.0041~0.5241 μg/L and 0.0123~1.6692 μg/L, respectively. Accuracy and precision were controlled in the range of 78.29~124.57% and 2.95~23.41%, approximately. Five compounds (bromodichloromethane, 1,2-dichloroethane, tribromomethane, cis-1,2-dichloroethene, dibromochloromethane)were detected in stream waters and five compounds (cis-1,2-dichloroethene, acrylonitrile, 1,2-dichloroethane, bromodichloromethane, dibromochloromethane) were detected in 5 discharge points of industrial complex located in the Nakdong river basin. Risk assessments were performed for all of the detected compounds. It was less than the EPA criteria and criteria estimated in 33 representative points. 1,2-Dichloroethane and acrylonitrile detected in discharge points of 5 industrial complex were more than the EPA criteria.
Key Words: Volatile organic compounds, Purge & trap (P&T), Nakdong river basin, Risk assessment, EPA criteria


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