Detection of Synthetic Musk Compounds (SMCs) in Nakdong River Basin

낙동강 수계에서의 인공 사향물질 검출 특성

  • Seo, Chang-Dong (Department of Civil and Environmental Engineering, Pusan National University) ;
  • Son, Hee-Jong (Water Quality Institute, Busan Water Authority) ;
  • Lee, In-Seok (Department of Civil and Environmental Engineering, Pusan National University) ;
  • Oh, Jeong-Eun (Department of Civil and Environmental Engineering, Pusan National University)
  • 서창동 (부산대학교 환경공학과) ;
  • 손희종 (부산광역시 상수도사업본부 수질연구소) ;
  • 이인석 (부산대학교 환경공학과) ;
  • 오정은 (부산대학교 환경공학과)
  • Received : 2009.11.16
  • Accepted : 2010.06.04
  • Published : 2010.06.30

Abstract

The aims of this study were to investigate and confirm the occurrence and distribution patterns of synthetic musk compounds (SMCs) in Nakdong river basin (mainstream and its tributaries). 4 (HHCB, AHTN, AHMI and ADBI) out of 6 polycyclic musk compounds (PMCs) and 1 (musk xylene, MX) out of 5 nitro musk compounds (NMCs) were detected in 29 sampling sites and HHCB (>50%) was predominant compound followed by musk ketone (MK) and AHTN. The total concentration levels of SMCs on February 2009 and on September 2009 in surface water samples ranged from N.D. to 2147 ng/L and N.D. to 1386 ng/L, respectively. The highest concentration level of SMCs in the mainstream and tributaries in Nakdong river were Goryeong and Jincheon-cheon, respectively. The sewage treatment plants (STPs) along the river affect the SMCs levels in river and the SMCs levels decreased with downstream because of dilution effects.

낙동강 수계에서의 인공 사향물질들의 검출현황을 조사한 결과, 다환 사향물질인 HHCB, AHTN, AHMI 및 ADBI 4종과 염화 사향물질인 MK 1종이 검출었으며, 본류에서는 HHCB, AHTN 및 MK 3종만이 검출되었다. 낙동강 수계에 검출된 인공 사향물질들의 구성비율을 조사한 결과, HHCB가 50% 이상을 차지하여 가장 높게 나타났고, 다음으로 MK와 AHTN이 높은 비율을 나타내었다. 낙동강 본류에서 가장 높은 검출농도를 나타낸 지점은 고령지점 (고령교)으로 2월과 9월에 각각 280.4 ng/L와 195.3 ng/L가 검출되었고, 지류에서는 진천천 지점으로 2월에 2146.6 ng/L와 9월에 1386.4 ng/L의 검출농도를 나타내었다. 인공 사향물질들은 낙동강 상류부근에서는 거의 검출되지 않았으나 중류부근인 구미 지점부터 하수처리장 방류수의 영향을 받아서 농도가 증가하였고, 금호강과 진천천 (hot spot)의 영향을 많이 받는 고령지점에서 최대농도를 나타낸 후 하류로 갈수록 희석효과에 의해 농도가 점점 감소하였다.

Keywords

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