earticle

영어

The objective of this study is to investigate the characteristics of the distribution of 10 perfluorinated compounds (PFCs) in the basin of Sumjin river and southern coastal water of Korea, which is part of an ongoing program of monitoring on the local distribution of PFCs. All samples were extracted using solid-phase extraction (SPE) disk cartridges with HLB (hydrophilic-lipophilic balanced), and were analyzed by liquid chromatography tandem mass spectrometry (LC/ESI-MS/MS). Method detection limit (MDL) and limits of qantification (LOQ) of PFCs were in the range of 0.4 to 1.9 ng/L and 1.5 to 6.1 ng/L, respectively. Among PFCs, perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA) and perfluorononanoic acid (PFNA) in the basin of Sumjin river were mainly detected with high frequency and concentrations, in which concentrations of these three PFCs were in the range of < LOQ to 19.60 ng/L and < LOQ to 20.59 ng/L, and < LOQ to 34.62 ng/L, respectively. However, PFOS and PFOA were mainly detected in the southern coastal water, in which concentration of these two PFCs was in the range of < LOQ to 48.00 ng/L and < LOQ to 24.30 ng/ L, respectively. The detective frequency and concentration of perfluorohexane sulfonate (PFHxS) were relatively lower than those of PFOS and PFOA, and the concnetration of the remaining other PFCs were less than MDL. These results suggest that further study characterizing the concentration distribution of PFCs is needed.

한국어

본 연구에서는 한국의 남쪽 수계에서 Perfluorinated Compounds(PFCs)의 모니터링을 위해 섬진강 수계 및 남해안 연안에서 10개 의 PFCs 화합물에 대한 분포 특성을 조사하였다. 채취된 시료의 전처리는 HLB(hydrophilic-lipophilic balanced) 충진물이 채워진 카 트리지(cartridge)를 이용한 고상추출법(solid-phase extraction, SPE)을 사용하였고, 기기분석법은 LC/ESI- MS/MS 법을 사용하여 분 석하였다. 사용된 분석기의 PFCs 방법검출한계(method detection limit, MDL)는 0.4-1.9 ng/L, 정량한계(limits of qantification, LOQ) 는 1.5-6.1 ng/L이었다. 10개의 PFCs 중에서 섬진강 수계에서 검출 빈도 및 농도가 높은 화합물은 perfluorooctane sulfonate(PFOS), perfluorooctanoic acid(PFOA)와 perfluorononanoic acid(PFNA)로 나타났으며, 섬진강 수계에서 FPOS는 < LOQ-19.60 ng/L, PFOA 는 < LOQ-20.59 ng/L, PFNA는 < LOQ-34.62 ng/L 농도 분포를 보였다. 남해안 연안 해역에서는 PFOS와 PFOA가 검출빈도 및 농 도가 높았고, FPOS는 < LOQ-48.00 ng/L, PFOA는 < LOQ-24.13 ng/L 농도 분포를 보였다. PFHxS의 농도는 PFOS와 PFOA 농도보 다 낮았으며, 그 밖의 PFCs는 검출되지 않았다. 이러한 결과는 지역 수계에서 PFCs의 농도 분포특성에 대한 지속적인 조사의 필요 성을 시사한다.