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Assessment of Environmental Contaminant Levels in Water, Sediments and Adjacent Soils and Spider from Several Stream Sites in Korea

국내 하천들의 수질, 하천 퇴적물, 주변 토양 및 별늑대거미 체내 중금속 축적량을 통한 환경오염도 평가

  • Byun, Sang-Hyuk (Department of Applied Chemistry, Andong National University) ;
  • Ryoo, Keon-Sang (Department of Applied Chemistry, Andong National University) ;
  • Choi, Jong-Ha (Department of Applied Chemistry, Andong National University) ;
  • Kim, Yong-Gyun (School of Bioresource Sciences, Andong National University) ;
  • Lee, Hwa-Sung (Gyeongbuk Government Public Institute Health & Environment)
  • 변상혁 (안동대학교 응용화학과) ;
  • 유건상 (안동대학교 응용화학과) ;
  • 최종하 (안동대학교 응용화학과) ;
  • 김용균 (안동대학교 농생물학과) ;
  • 이화성 (경상북도 보건환경연구원)
  • Published : 2008.03.31

Abstract

A comprehensive quality survey for heavy metals, organophosphorous and organochlorine residual pesticides, and coplanar PCBs in samples such as water, sediments and soils as well as spiders has been implemented. The samples were undertaken at nine stream sites and their vicinity in August 2006, representing different surrounding environments. The levels of PCBs were expressed as concentrations and WHO-TEFs. Among 12 coplanar PCBs as target compounds in this study, 2,3', 4,4', 5-PentaCB (IUPAC # 118) was the congener with the highest concentration. The total concentrations and TEF values of coplanar PCBs in Siheung stream sediment (heavy industrial complex site located in Ansan city) were 3915.50 pg/g and 0.8366 pg-TEQ/g on a dry weight basis, respectively. Such levels were around 40 times higher compared to sediment from Gapyung stream (green site located in the upper of Myunggi mountain). It is probably due to the direct input of PCBs trom PCBs treatment materials. Organophosphorous (EPN, dementon-s-methyl, diazinon, parathion, and phenthoate) and organochlorine (alpha-BHC, aldrin, 4,4'-DDT, 4,4'-DDE, endosulfan alpha and etc.) pesticides were not detected above 5 ppb of detection limits. The concentrations of Cu and Cd in water and sediment samples from Siheung stream were 44.11 and $0.17ug/m\ell$ and $713.42{\mu}g/g$ and $3.73{\mu}g/g$, respectively, which contained $20\sim40$ times higher concentrations than those from Gapyung stream. In addition to the water and sediment samples, the levels of heavy metals in spider from designated sampling sites were also determined. Heavy metals in spider collected near Siheung stream was appeared to be equivalent and/or a little higher levels with respect to other spiders. Furthermore, the ratio of relative heavy metals (Cu, Cd, and Pb) in spider from each stream site showed a correlation as similar as that of heavy metals in soil samples.

Keywords

Heavy metals;Organophosporous and organochlorine pesticides;Coplanar PCBs;Spider;TEFs

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