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 μg/L to 0.013 μg/L and in 0.001 μg/L to 0.008 μg/L, respectively. In comparison to studies performed in EPA(UCMR2), the concentrations of NDMA (from 0.002 μg/L to 0.630 μg/L) and NDEA (from 0.005 μg/L to 0.100 μg/L) observed in the this study were low.

The chemical structures of perfluorinated compounds(PFCs) have unique properties such as thermal and chemical stability that make them useful components in a wide variety of consumer and industrial products. Two of these PFCs, perfluorooctane sulfonate(PFOS) and perfluorooctanoic acid(PFOA), have received attention and were the most commonly detected. In this study it was analyzed the concentrations of 8 PFCs in samples were collected from drinking water treatment plants for 5 years(2012-2016). PFOS and PFOA were also high concentration and frequency. The mean concentrations of PFOA and PFOS were detected 0.0026-0.0069 μg/L and 0.0009-0.0024 μg/L in samples from drinking water treatment plants. These were relatively lower or similar compared to PFOS concentrations in Osaka(Japan). In general, these levels are below health-based values set by international authoritative bodies for drinking water. These results will be serve as the first monitoring data for PFCs in drinking water and be useful for characterizing the concentration distribution and management of PFCs in future studies.

물은 신체의 대부분을 구성하고 있는 기본 물질로서 생명유지의 필수 요소이다. 특히 WHO에서는 인류 건강유지의 1등 공신으로 깨끗한 물공급을 꼽고 있다. 우리나라는 산업화, 도심화를 통해 신규오염물질 발생이 증가하고 있으며 특히 먹는물의 경우 중금속 및 소독부산물 중심의 관리에서 난연제, 코팅제, 의 약물질 등 신규오염물질 관리에 주력하고 있다. 우리나라 먹는물 수질기준은 1963년 최초 도입된 이래 1984년, 1986년 개정 강화되었으며, 1995년 먹는물 관리법이 제정되었고 1997년 감시항목이 설정되 어 기준과 감시의 2원화된 관리체계가 유지되고 있다. 먹는물 수질기준은 외국 사례 도입방식에서 체계적 장기 모니터링을 통한 위해도 평가를 수행하여 기준을 강화하고 있으며 현재 60개 항목으로 확대 강화되었다.