Journal of the Korean Society for Marine Environment & Energy (한국해양환경ㆍ에너지학회지)

The Korean Society for Marine Environment and Energy (한국해양환경•에너지학회)
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A Study on the Pollution of Bisphenol A in Surface Sediment around Gwangyang Bay

광양만 주변해역의 표층퇴적물 중 Bisphenol A의 오염에 관한 연구

  • Cho Hyeon-Seo (Division of Ocean System, Yoeu National University) ;
  • Kim Yong-Ok (Division of Ocean System, Yoeu National University) ;
  • Shin Tai-Sun (Division of Food Technology and Nutrition, Yosu National University) ;
  • Horiguchi Toshihiro (Environmental Chemistry Division, National Institute for Environmental Studies)
  • 조현서 (여수대학교 해양시스템학부) ;
  • 김용옥 (여수대학교 해양시스템학부) ;
  • 신태선 (여수대학교 식품공학영양학부) ;
  • Published : 2004.05.01
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Abstract

This study was carried out to survey the pollution of bisphenol A(BPA) and total organic carbon(TOC) in surface sediments around Gwangyang bay. BPA is suspected chemicals as endocrine disruption. Gwangyang bay Is located on the mid south coast of Korea. It is a semi-closed bay which Yeosu petrochemical industrial complex, POSCO(Pohang Steel Company) and Gwangyang container harbor are located. The surface sediments were collected at 15 stations with gravity corer at October, 1999, February, May and August, 2000. Also, the stream and intertidal sediment were collected at 5 sites at August, 2000. Concentrations of BPA in surface sediments were in the range of 0.46 to 24.59 ng/g dry wt.. Seasonal range(mean value) of BPA are 0.59 to 9.00(1.88) ng/g dry wt. at October, 0.99 to 2.97(1.57) ng/g dry wt. at February, 0.46 to 24.59(2.53)ng/g dry wt. at May and 0.54 to 2.46 (1.29)ng/g dry wt. at August. BPA was seasonally fluctuated, and the highest mean value and range were detected at May, 2000. BPA was highly distributed in the inner part of Kwangyang bay than Yosu sound. Concentrations of BPA in stream and intertidal sediments showed the highest value in downstream near Yochon petrochemical industrial complex and Yondung stream. It suggests that the source of BPA are industrial wastewater and municipal sewage. TOC in surface sediments were in the range of 0.09∼1.22%. There was no any correlation between the BPA and TOC.

본 연구는 광양만과 여수해만에서 표층 퇴적물 중 비스페놀 A(BPA)의 오염 특성을 평가하기 위하여 1999년 10월, 2000년 2월, 5월 그리고 2000년 8월에 15개 정점에서 연구를 실시하였다. 표층 퇴적물 중 BPA는 0.46∼24.59 ng/g dry wt.의 변동범위를 보였다. BPA의 계절별 평균 농도는 전체적으로 비슷하게 나타났으며, 평균 농도의 변동범위는 2.53 ng/g dry wt. 이하를 보였다. BPA의 수평분포는 계절별로 농도 값은 다소 차이가 있으나 여수해만에 비하여 광양만 퇴적물에서 비교적 높은 농도를 보였다. 또한 산업폐수와 도시하수의 영향을 크게 받는 하천 퇴적물의 조사결과 BPA는 연등천에서 농도가 높았다. TOC의 계절별 변동범위는 전계절에 걸쳐 0.09∼l.65%로 나타났으며, 섬진강 하구에서 0.09%로 낮은 함량을 보였다. BPA와 TOC의 상관계수는 0.095로 상관관계가 거의 없었다.

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