| Title |
Annual and Seasonal Variation and the Spatial Distribution of the COD in Lake Soyang |
| Authors |
허인량 ; 이해금 ; 최규열 ; 박성빈 ( In Ryang Huh ; Hae Keum Lee ; Kyu Yol Choi ; Sung Bin Park ) |
| Abstract |
This study was initiated to perform a comprehensive evaluation of the water quality in Lake Soyang. Seasonal variation and the spatial distribution of COD and chl. a were monitored at 8 sites selected in Lake Soyang from June, 1991 to April, 1992. Result of regression analysis of COD vs chl. a concentration indicated positive correlation. Statistical analysis on the annual variation of COD showed a increasing pattern with time during the study period. The spatial average COD value at surface layer showed that the difference was not statistically significant at 95% level. With respect to the seasonal variation, however, it was significant at the same level. Average COD concentration of effluent layer was analyzed 2.02㎎/ℓ. |