Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Water Quality Assessment in Small Streams by Epilithic Diatoms and DAIpo

부착조류와 유기오탁지수에 의한 소하천의 수질평가

  • Jo, Kwan-Hyung (Dept. of Civil and Environmental Engineering, Chungwoon University)
  • 조관형 (청운대학교 철도행정토목학과)
  • Received : 2010.03.08
  • Accepted : 2010.04.16
  • Published : 2010.04.30
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Abstract

In this study, a method for river water quality evaluation by algal examination was investigated. For development of this method, algae living in small rural streams in Gwangcheon-Cheon were collected and observed by microscope. Samples were collected at six stations from May 2008 to May 2009. To elucidate the relationship between pollution and the algal species, diatom grasps were collected from the streams and used to determine the water quality grade. The numerical EC value was compared with the value of DAIpo (Diatom Assemblage Index of Organic Water Pollution), and the results showed a tendency to a mutually inverse relationship. Further, the numerical BOD and COD values were compared to the DAIpo value. The results showed that, various diatoms reside in Gwangcheon-Cheon, and water quality was found to be second-grade at all the examined points. These results indicate pollution of streams by livestock wastewater; however continuous monitoring will be necessary to more definitely determine the reason for the Gwangcheon-Cheon pollution.

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References

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