- P-ISSN 1225-0163
- E-ISSN 2288-8985
본 연구는 서울시 상수도 계통에서 내분비계장애물질인 BPA 및 NP의 실태조사를 위해 2002년 9월부터 2003년 12월까지 수행되었다. 상수원 유역의 한강 및 지류천중의 BPA및 NP의 수준은 다음과 같았다: 팔당댐, ND~0.033 ㎍/L 및 ND~0.823 ㎍/L ; 경안천, ND~0.659 ㎍/L 및 ND~3.827 ㎍/L ; 왕숙천, ND~0.528 ㎍/L 및 ND~12.724 ㎍/L. 서울시 6개 취수장 원수중의 BPA 수준은 ND~0.260 ㎍/L, NP의 농도는 0.122~2.724 ㎍/L의 범위에 있었다. 그리고 왕숙천 수역을 중심으로 한 3개 정수장의 여과수와 그 수돗물에서 BPA는 모두 불검출된 반면에, NP는 전지점에서 ppt 수준으로 검출되었다. 또한, 먹는물의 정수처리공정에서 NP의 제거율은 정수장별 차이가 없이 80~95%로 높게 나타났다. 따라서 본 연구결과는 상수도 계통에서 BPA 및 NP의 농도는 한강 유역에 존재하는 점오염원 및 하수처리장 방류량에 의존된다는 것을 시사하고 있다.
This study was examined occurrence of bisphenol A (BPA) and nonylphenol (NP) in waterworks system of Seoul, Korea from September 2002 to December 2003. The levels of BPA and NP in Han-river and its tributaries were as followed: Paldang-dam, ND(not detected)~0.033 ㎍/L and ND~0.823 ㎍/L; Kyungahn-creek, ND~0.659 ㎍/L and ND~3.827 ㎍/L; Whangsuk-creek, ND~0.528 ㎍/L and ND~12.724 ㎍/L, respectively. In water of 6 intake-station, the contents of NP and BPA were detected 0.122~2.724 ㎍/L, and ND~0.260 ㎍/L, respectively. In the finished- and tap-water of three drinking water treatment plants (DWTPs) around Whangsuk-creek, BPA was not detected in all samples, while NP was in ppt levels in whole. Through the process of DWTP, also, the removal ratio of NP was above 80% in all this. Therefore, this result was suggested that levels of BPA and NP in waterworkssystem depended on non-point contaminants and swage treatment plants in the Han-river shed.
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