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http://dx.doi.org/10.11001/jksww.2018.32.5.389

Risk assessment and distribution characteristics of N-nitrosamines in drinking water treatment plants  

Son, Boyoung (National Institute of Environmental Research, Water Supply and Sewerage Research Division)
Lee, Leenae (National Institute of Environmental Research, Water Supply and Sewerage Research Division)
Yang, Mihee (National Institute of Environmental Research, Water Supply and Sewerage Research Division)
Park, Sangmin (National Institute of Environmental Research, Water Supply and Sewerage Research Division)
Pyo, Heesoo (Korea Institute of Science and Technology, Molecular Recognition Research Center)
Lee, Wonsuk (National Institute of Environmental Research, Water Supply and Sewerage Research Division)
Park, Juhyun (National Institute of Environmental Research, Water Supply and Sewerage Research Division)
Publication Information
Journal of Korean Society of Water and Wastewater / v.32, no.5, 2018 , pp. 389-398 More about this Journal
Abstract
A nationwide survey of 8 N-nitrosamines in finished water samples from drinking water treatment plants (DWTPs) in Korea was conducted. The samples were pre-treated by solid-phase extraction (SPE) and analyzed using a gas chromatography coupled with tandem mass spectrometry (GC-MS/MS). According to the study results, four N-nitrosamines (NDMA, NDEA, NMOR, NDBA) were detected for three consecutive years, NMEA and NPYR were only found in samples collected in 2013. Two of these N-nitrosamines, N-nitrosodimethylamine (NDMA) and N-nitrosodiethylamine (NDEA), have received attention and were the most commonly detected. The concentration of NDMA and NDEA in this study ranged from $0.002{\mu}g/L$ to $0.013{\mu}g/L$ and in $0.001{\mu}g/L$ to $0.008{\mu}g/L$, respectively. In comparison to studies performed in EPA(UCMR2), the concentrations of NDMA (from $0.002{\mu}g/L$ to $0.630{\mu}g/L$) and NDEA (from $0.005{\mu}g/L$ to $0.100{\mu}g/L$) observed in the this study were low.
Keywords
N-nitrosamines; NDMA; NDEA; DWTP; Risk assessment;
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