| Title |
The estimation of pollution source by fecal sterols index in river |
| Authors |
안중혁 ( An Jung Hyeog ) ; 이완 ( Lee Wan ) ; 표동진 ( Pyo Dong Jin ) |
| Keywords |
Coprostanol; Cholestanol; Fecal sterols |
| Abstract |
Assuming the pollutant source of Nam-dae river in Gangnung City, the fecal sterols was investigated with GC-FID and GC-MSD. The variation coefficient of fecal sterols were dispersed from 1.76 to 9.30%, and detection limits were ranged 0.03 to 0.04㎍/ℓ. In the Nam-dae river, downing the river to downstream, coprostanol concentration was increased from 0.10ppb to 1.29ppb. The presumptive index 5β/(5β+5α) reveal that the fecal pollution were 0.55 for Bangdogyo, 0.46 for Hongjebo, 0.50 for Hapyeongbo and over 0.71 for Ponambo. It means, the downstream of Nam-dae river was polluted by domestic sewage, and the fecal pollution was gradually increased through the flow direction. |