West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
Station: River Torsa at Hasimara | River Basin: GANGA | CPCB Station Code: 4724 |
Sample Date: 17/04/2020 | Sample Time: 10:30 | |
Human Activities: None | Weather: Sunny and Hot. | Water Body: Torsa |
Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Clear Light Green | Odour: Fishy | Visible effluent discharge: Moderate |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
BOD | 1.80 | mg/l |
Nitrate-N | mg/l | |
pH | 7.20 | Unit |
Temperature(Water) | 28 | ⁰C |
Total Coliform | 7000 | MPN/100ml |
Boron | mg/l | |
Calcium | 16.03 | mg/l |
Chloride | 6.85 | mg/l |
COD | 22.00 | mg/l |
Fluoride | mg/l | |
Magnesium | 5.76 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.002 | mg/l |
Potassium | 0.60 | mg/l |
Sodium | 1.90 | mg/l |
Sulphate | 10.05 | mg/l |
Total Alkalinity | 50.00 | mg/l |
Total Dissolved Solids(TDS) | 74.00 | mg/l |
Total Fixed Solids(TFS) | mg/l | |
Total Hardness as CaCo3 | 60.00 | mg/l |
Total Suspended Solids(TSS) | 20.00 | mg/l |
Turbidity | NTU | |
Arsenic | mg/l | |
Cadmium | mg/l | |
Chromium Total | mg/l | |
Copper | mg/l | |
Iron | mg/l | |
Lead | mg/l | |
Mercury | mg/l | |
Nickel | mg/l | |
Zinc | mg/l | |
a-BHC | ppb | |
a-Endosulphan | ppb | |
Aldrin | ppb | |
Anilophos | ppb | |
b-Endosulphan | ppb | |
Chlorpyriphos | ppb | |
Dieldrin | ppb | |
g-BHC | ppb | |
Malathion | ppb | |
Methyl Parathion | ppb | |
o,p-DDT | ppb | |
p,p-DDT | ppb | |
Ammonia-N | mg/l | |
Conductivity | 39.41 | µs/cm |
Dissolved O2(DO) | 8.40 | mg/l |
Fecal Coliform | 3400 | MPN/100ml |