Journal of Environmental Impact Assessment (환경영향평가)

Korean Society of Environmental Impact Assessment (한국환경영향평가학회)
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Assessment of Bacterial Abundance and Activities in Sediment of Daecheong Dam Reservoir

대청댐 저층 퇴적물 박테리아 군집과 활성 평가

  • Kong, In Chul (Environ. Microbiol. Lab., Dept. of Environ. Eng., Yeungnam University) ;
  • Lee, Yo Sang (Environ. Research Team, Water Resources Research Institute, KOWACO)
  • 공인철 (영남대학교 환경공학과 환경미생물 연구실) ;
  • 이용상 (한국수자원공사 수자원연구소 호소연구실)
  • Received : 2003.01.27
  • Accepted : 2003.03.11
  • Published : 2003.03.31
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Abstract

Bacterial activities of dam reservoir sediments were assessed using the methods of viable counts, ATP contents, dehydrogenase activity, and oxygen consumption. Viable heterotrophs in collected sediments were observed in the range of $10^6{\sim}10^{10}$ CFU/g dry wt. sediment. All assessed methods showed high activities in sediment samples collected from near dam site. In addition, bacteria increase in sediments amended with cellulose, starch, lipid, and protein compounds. Various ranges of antibiotics and heavy metals resistance bacteria were also detected, especially, 10~100 times less numbers of Cd resistance bacteria were observed compared with those of Pb and Cr. In general, antibiotics resistance groups were in the range of $10^{-1}{\sim}10^{-6}$ times of control.

Keywords

References

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