Table 2 Analytical results of trace elements in surface waters of the Himalayan tributaries of the Ganga river
River | Sampling Season | Mn | Cu | Pb | Zn | Ni | Co | As | Se | Cd | Al | Sr | Cr | Ba | V | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ramganga | Monsoon 2013 | 4.1 | 3 | bdl | bdl | 3.7 | 0.2 | 1.8 | 0.3 | bdl | 42.9 | 94.9 | 0.5 | 36.8 | 2.2 | 470.5 |
Ghaghara | 0.7 | 0.3 | 0.2 | 0.2 | 1.1 | 0.1 | 1.1 | 0.3 | bdl | 17.2 | 69.8 | bdl | 45.1 | 0.9 | 323 | |
Gandak | 1.7 | 0.7 | bdl | bdl | 1.5 | 0.2 | 1.5 | 0.2 | bdl | 68 | 62.7 | 0 | 33 | 0.8 | 350.3 | |
Kosi | 1.7 | 0.7 | bdl | bdl | 0.9 | 0.1 | 1.7 | 0.2 | bdl | 120.5 | 31.9 | bdl | 10 | 1.7 | 289 | |
Ramganga | Post-monsoon 2013 | 17.7 | 50.3 | 13.9 | 267.6 | 12.3 | 0.3 | 3.8 | 1.2 | bdl | 75.4 | 181.5 | 8.9 | 84 | 1.7 | 751.4 |
Ghaghara | 5.6 | 4.1 | bdl | 4.6 | 5 | 0.2 | 2.3 | 0.3 | bdl | 50 | 122.8 | 4.4 | 70.6 | 1.3 | 507.3 | |
Gandak | 6 | 2.3 | bdl | 2.9 | 4.1 | 0.1 | 2 | 0 | bdl | 51.8 | 101.7 | 0.8 | 49.4 | 0.8 | 425.4 | |
Kosi | 6.3 | 2.9 | bdl | 2.6 | 3.1 | 0.1 | 2.1 | 0.1 | bdl | 57.3 | 56.6 | 2.5 | 18.9 | 1.6 | 324.6 | |
Ramganga | Pre-monsoon 2014 | 35.1 | 23.1 | 13.1 | 171.3 | 13.5 | 0.4 | 3.4 | 0.8 | 0.02 | 41.4 | 165.8 | 5.6 | 96.6 | 1.7 | 683.2 |
Ghaghara | 9.9 | 3.5 | bdl | 1.8 | 4.8 | 0.2 | 3.3 | 0.2 | bdl | 77.3 | 153.2 | 4.1 | 73.1 | 1.7 | 613.2 | |
Gandak | 9.7 | 4.3 | bdl | 4.8 | 5.3 | 0.3 | 2.8 | 0.2 | bdl | 134.1 | 128.8 | 5.7 | 54.4 | 1.3 | 720.2 | |
Kosi | 4.3 | 1.8 | bdl | 4.9 | 1.8 | 0.1 | 2.8 | 0.2 | bdl | 60.2 | 67.3 | 2.2 | 18 | 2.1 | 328.9 |