West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: KAROLA, D/S OF JALPAIGURI, NEAR MIN BHAWAN | River Basin: Tista | CPCB Station Code: 2523 |
| Sample Date: 28/04/2022 | Sample Time: 13:30 Hrs | |
| Human Activities: None | Weather: Sunny and clear | Water Body: Karala at jalpaiguri |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light green and moderately Turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Conductivity | 90.90 | µs/cm |
| Magnesium | 6.33 | mg/l |
| Cadmium | BDL | mg/l |
| b-Endosulphan | BDL | ppb |
| Dieldrin | BDL | ppb |
| g-BHC | BDL | ppb |
| Malathion | BDL | ppb |
| Methyl Parathion | BDL | ppb |
| o,p-DDT | BDL | ppb |
| p,p-DDT | BDL | ppb |
| Ammonia-N | BDL | mg/l |
| BOD | 2.00 | mg/l |
| Dissolved O2(DO) | 6.80 | mg/l |
| Fecal Coliform | 2600 | MPN/100ml |
| Fecal Streptococci | 43 | MPN/100ml |
| Nitrate-N | 0.45 | mg/l |
| pH | 6.63 | Unit |
| Temperature(Water) | 29 | ⁰C |
| Total Coliform | 3400 | MPN/100ml |
| Boron | 3.80 | mg/l |
| Calcium | 13.62 | mg/l |
| Chloride | 6.84 | mg/l |
| COD | 13.00 | mg/l |
| Fluoride | 0.12 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.001 | mg/l |
| Potassium | 4.00 | mg/l |
| Sodium | 10.30 | mg/l |
| Sulphate | 7.63 | mg/l |
| Total Alkalinity | 54.00 | mg/l |
| Total Dissolved Solids(TDS) | 54.00 | mg/l |
| Total Fixed Solids(TFS) | 60.00 | mg/l |
| Total Hardness as CaCo3 | 56.00 | mg/l |
| Total Suspended Solids(TSS) | 20.00 | mg/l |
| Turbidity | 2.38 | NTU |
| Arsenic | BDL | mg/l |
| Chromium Total | BDL | mg/l |
| Copper | BDL | mg/l |
| Iron | 0.41 | mg/l |
| Lead | BDL | mg/l |
| Mercury | BDL | mg/l |
| Nickel | BDL | mg/l |
| Zinc | BDL | mg/l |
| a-BHC | BDL | ppb |
| a-Endosulphan | BDL | ppb |
| Aldrin | BDL | ppb |
| Anilophos | BDL | ppb |
| b-BHC | BDL | ppb |
| Chlorpyriphos | BDL | ppb |