| WATER QUALITY DATA 2007 | CPCB ENVIS | ||||||||||||||||||||||||||||||||||
| WATER QUALITY OF RIVER BRAHAMPUTRA - 2007 | ||||||||||||||||||||||||||||||||||
| STATION CODE | LOCATIONS | TEMPERATURE ºC | D.O. (mg/l) | pH | CONDUCTIVITY (µmhos/cm) | C.O.D. (mg/l) | B.O.D. (mg/l) | NITRATE (mg/l) | NITRITE (mg/l) | AMMONIA - N (mg/l) | FECAL COLIFORM (MPN/100ml) | TOTAL COLIFORM (MPN/100ml) | ||||||||||||||||||||||
| MIN | MAX | MEAN | MIN | MAX | MEAN | MIN | MAX | MEAN | MIN | MAX | MEAN | MIN | MAX | MEAN | MIN | MAX | MEAN | MIN | MAX | MEAN | MIN | MAX | MEAN | MIN | MAX | MEAN | MIN | MAX | MEAN | MIN | MAX | MEAN | ||
| 1260 | BRAHAMPUTRA AT KHERGHAT (AFTER CONFL. WITH DIBANG & DIHANG), ASSAM | 20 | 29 | 23 | 5.5 | 10.0 | 7.7 | 6.0 | 7.9 | 7.0 | 107 | 211 | 158 | 6.0 | 6.0 | 6.0 | 0.4 | 2.4 | 1.3 | 0.10 | 0.20 | 0.11 | 0.10 | 0.10 | 0.10 | 0 | 9300 | 2267 | 1 | 150000 | 26174 | |||
| 1030 | BRAHAMPUTRA AT DIBRUGARH, ASSAM | 21 | 25 | 23 | 6.8 | 10.2 | 8.0 | 6.6 | 7.6 | 7.1 | 111 | 227 | 159 | 5.6 | 5.6 | 5.6 | 0.2 | 2.5 | 1.1 | 0.10 | 1.00 | 0.19 | 0.10 | 0.10 | 0.10 | 300 | 4300 | 1119 | 730 | 21000 | 4156 | |||
| 1262 | BRAHAMPUTRA AT NIMATIGHAT, ASSAM | 18 | 27 | 22 | 5.1 | 8.2 | 6.8 | 6.2 | 7.5 | 7.0 | 76 | 276 | 158 | 6.9 | 6.9 | 6.9 | 0.5 | 2.7 | 1.7 | 0.10 | 1.00 | 0.19 | 0.20 | 0.20 | 0.20 | 360 | 9300 | 2288 | 730 | 46000 | 9558 | |||
| 1526 | BRAHMPUTRA RIVER AT DHENUKHAPAHAR, ASSAM | 18 | 25 | 22 | 6.2 | 10.6 | 7.0 | 6.2 | 7.6 | 7.1 | 85 | 185 | 136 | 4.6 | 4.6 | 4.6 | 0.4 | 3.1 | 1.4 | 0.10 | 0.10 | 0.10 | 0.00 | 0.00 | 0.00 | 360 | 240000 | 40660 | 1500 | 240001 | 44092 | |||
| 1031 | BRAHAMPUTRA AT PANDU, ASSAM | 18 | 32 | 24 | 6.7 | 9.5 | 7.8 | 6.5 | 7.4 | 7.1 | 132 | 223 | 167 | 0.1 | 2.9 | 1.2 | 0.10 | 2.50 | 0.35 | 0 | 21000 | 4932 | 0 | 240000 | 48342 | |||||||||
| 1299 | BRAHAMPUTRA AT JOGIJHOGA NEAR BRIDGE, ASSAM | 20 | 31 | 27 | 5.1 | 7.9 | 6.8 | 5.9 | 7.9 | 7.1 | 84 | 645 | 239 | 4.6 | 4.6 | 4.6 | 0.2 | 3.4 | 1.2 | 0.10 | 0.30 | 0.13 | 0.00 | 0.00 | 0.00 | 360 | 2800 | 1233 | 910 | 9300 | 3593 | |||
| 2069 | BRAHMPUTRA RIVER NEAR WATER INTAKE POINT AT KACHARIGHAT, PANBAZAR, GUWAHATI, ASSAM | 18 | 31 | 26 | 5.9 | 9.7 | 7.7 | 6.7 | 7.5 | 7.1 | 127 | 220 | 173 | 15.4 | 15.4 | 15.4 | 0.5 | 1.1 | 0.9 | 0.10 | 0.30 | 0.18 | 0.00 | 0.00 | 0.00 | 360 | 720 | 450 | 730 | 7500 | 2958 | |||
| 2064 | BRAHMAPUTRA RIVER AT CHANDRAPUR, GUWAHATI | 19 | 32 | 26 | 6.2 | 9.2 | 7.5 | 6.6 | 7.2 | 7.0 | 131 | 283 | 181 | 9.8 | 9.8 | 9.8 | 1.1 | 3.3 | 1.9 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 360 | 730 | 543 | 730 | 7500 | 2660 | |||
| 2067 | BRAHMPUTRA RIVER AT SUALKUCHI, DIST. KAMRUP, ASSAM | 21 | 28 | 24 | 7.3 | 7.8 | 7.5 | 6.8 | 7.7 | 7.1 | 130 | 188 | 159 | 3.1 | 3.1 | 3.1 | 1.3 | 3.1 | 2.2 | 0.10 | 0.10 | 0.10 | 0.00 | 0.00 | 0.00 | 300 | 360 | 320 | 910 | 1500 | 1303 | |||
| 2066 | BRAHMAPUTRA RIVER AT DHUBRI | 22 | 30 | 27 | 7.0 | 7.9 | 7.4 | 7.0 | 7.7 | 7.4 | 91 | 167 | 138 | 4.5 | 4.5 | 4.5 | 0.7 | 1.6 | 1.1 | 0.10 | 0.20 | 0.17 | 0.00 | 0.00 | 0.00 | 730 | 2800 | 1590 | 2000 | 15000 | 7100 | |||