부착돌말류를 이용한 생물학적 수질평가지표 개발

• Published in: 한국물환경학회지, 25(6) pp. 879 - 885
• Main Authors: 노성유, 변명섭, 김미아, 이재관
• Format: Journal Article
• Language: Korean
• Published: 한국물환경학회 30.11.2009
• Subjects: 환경공학
• ISSN: 2289-0971; 2289-098X

The present study was carried out to develop biological criteria for water quality assessment using benthic diatoms. Selecting of the indicator diatoms, three parameters were considered: broad distribution (180 taxa occurred over 3% at upper level), species abundance (158 taxa occurred over 1.5×105 cells/㎠), and sensitivity (184 taxa occurred more than once as 1st and 2nd dominant species). Overall, total 208 taxa were selected, including 38 varieties, 170 species, 34 genera, 9 families, 3 orders, and 1 phylum. The most dominant taxonomic group (family) was Naviculaceae (52%), followed by Diatomaceae (15%), Nitzschiaceae (12%) and Achnantaceae (11%). COD and TP were proposed as new water quality standards (draft) to improve the existing BOD standard and to manage and control efficiently non-biodegradable organic pollutants. With this regard, we used TP standard (draft) in developing biological water quality criteria for diatoms. TP standards (draft) proposed as Ia=0.02 mg/L or less, Ib=0.05 mg/L or less, II=0.1 mg/L or less, III=0.2 mg/L or less, IV=0.4 mg/L or less, V=0.6 mg/L or less and VI=above 0.6 mg/L. Biological assessment system (4 class system) was developed and proposed for diatom using modified Tropic Diatom Index (TDI). Biological assessment of TDI appear B grade (Good). The present study was carried out to develop biological criteria for water quality assessment using benthic diatoms. Selecting of the indicator diatoms, three parameters were considered: broad distribution (180 taxa occurred over 3% at upper level), species abundance (158 taxa occurred over 1.5×105 cells/㎠), and sensitivity (184 taxa occurred more than once as 1st and 2nd dominant species). Overall, total 208 taxa were selected, including 38 varieties, 170 species, 34 genera, 9 families, 3 orders, and 1 phylum. The most dominant taxonomic group (family) was Naviculaceae (52%), followed by Diatomaceae (15%), Nitzschiaceae (12%) and Achnantaceae (11%). COD and TP were proposed as new water quality standards (draft) to improve the existing BOD standard and to manage and control efficiently non-biodegradable organic pollutants. With this regard, we used TP standard (draft) in developing biological water quality criteria for diatoms. TP standards (draft) proposed as Ia=0.02 mg/L or less, Ib=0.05 mg/L or less, II=0.1 mg/L or less, III=0.2 mg/L or less, IV=0.4 mg/L or less, V=0.6 mg/L or less and VI=above 0.6 mg/L. Biological assessment system (4 class system) was developed and proposed for diatom using modified Tropic Diatom Index (TDI). Biological assessment of TDI appear B grade (Good). KCI Citation Count: 0