Distribution of Nonylphenol in Gwangyang Bay and the Surrounding Streams

광양만 및 주변 하천에서의 노닐페놀 화합물 분포

  • 이동호 (한국해양연구원 남해연구소 남해특성연구본부) ;
  • 김민선 (한국해양연구원 남해연구소 남해특성연구본부) ;
  • 심원준 (한국해양연구원 남해연구소 남해특성연구본부) ;
  • 임운혁 (한국해양연구원 남해연구소 남해특성연구본부) ;
  • 홍상희 (한국해양연구원 남해연구소 남해특성연구본부) ;
  • 오재룡 (한국해양연구원 남해연구소 남해특성연구본부)
  • Published : 2004.03.01

Abstract

Alkylphenols (8), chlorophenols (2), bisphenol A, eoprostanols (2) and cholesterol compounds were analyzed in the surface water and surface sediment taken from Gwangyang Bay and surrounding streams in 2001. Among the target analytes, nonylphenol and dihydrocholesteyol compounds were detected with high concentration and high frequency. t-Octylphenol, bisphenol A and coprostanols were detected only in some sediment samples from the stream. The highest concentration of nonylphenol was determined in stream sample, and concentrations of nonylphenol in the inner part of Gwangyang Bay were higher than those in the out part. Nonylphenol concentrations in the surface seawater and surface sediment samples ranged from 4.0 to 74.0 ng l$\^$-1/ and from 3.1 to 74.3 ng g$\^$-1/ dry wt., respectively. Partition coefficient (LogK$\_$oc/) of nonylphenol between sediment and water was 4.8. Nonylphenol nnd dihydrocholesteol concentrations in the stream surface sediment samples ranged from 4.6 to 808.6 and from 78.4 to 1133.6 ng g$\^$-1/ dry wt., respectively. Relatively high concentrations of nonylphenol were found in the stream samples which aye flowing through industrial complex area, while dihydrocholesterol concentration was relatively high in the stream samples which are flowing through only municipal area. Seaward decreasing tyend in nonylphenol concentration was observed from the Seomjin River estuary to the Gwanyang Bay. Such trend was best supported by the strong correlation between nonylphenol concentration and salinity in water samples.

광양만 및 주변 하천에 존재하는 페놀류 화합물과 sterol 화합물의 분포특성을 알아보기 위하여 alkylphenols (8종), chlorophenols (2종), bisphenol A (1종), coprostanols (2종) 및 cholesterol (1종) 등 화합물들을 분석대상물질로 선정하여 표층수와 표층퇴적물 시료를 분석하였다. 모든 분석대상물질 중에서 nonylphenol과 dihydrocholesterol 화합물이 가장 높은 검출빈도를 보였으며 일부 하천퇴적물 시료에서 t-octylphenol, bisphenol A, coprostanols이 검출되었다. 분석대상물질은 하천시료에서 비교적 높게 검출되었으며, 또한 광양만 내해에서 외해보다 높게 검출되었다. 표층해수와 표층해양퇴적 물에서의 nonylphenol농도는 각각 4.0∼74.0 ng $l^{-1}$ 및 3.1∼74.3 ng $g^{-1}$ dry wt.이었다. 해양표층퇴적물에 의한 nonylphenol 평균 농축배수(Log $K_{oc}$ )는 4.8이었다. 하천표층퇴적물에서의 nonylphenol농도는 4.6∼808.6 ng $g^{-1}$ dry wt.이었으며 dihydrocholesterol 농도는 78.4∼1133.6 ng $g^{-1}$ dry wt.이었다 공단지 역을 경유하는 하천시료에서는 상대적으로 높게 nonylphenol이 검출되었으며 주민 거주지역을 경유하는 하천퇴적물에서는 dihydrocholesterol 화합물이 상대적으로 높은 노출농도를 보이였다. 섬진강 표층수에서의 nonylphenol 농도는 염분도의 증가에 따라 낮아지는 경향을 보였다.

Keywords

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