West BengalBangladeshMiddle Ganga Plain, BiharUttarpradesh
Jharkhand North-East Hilly StatesRajnandgaon, ChattisgarhBehala, Kolkata, WBAs toxicity- Homeopathic Treatment
Effectiveness & Reliability - As Field Testing KitsUtility Of Treatment Plant
Causes, Effects & Remedies - Groundwater As CalamityReferences
Location and Demography
The district Hoogly is surrounded by the district Bankura and Burdwan in the north, Hoogly and North 24-Parganas in the east, Howrah in the south and Midnapore district in the west. The geographical extent of the district lies with a latitude 230 01'20" N and 220 39' 32"S and Longitude 88030' 20"E and 87030' 15"W. The district of Hoogly is enriched with the rivers Hoogly, Damodar, Darakeswar, Mundeswari, Saraswati, Kunti, Behula etc. Hoogly district comprises of 18 blocks with 1886 inhabited villages. Extending over an area of 3149 km2, the district has 50,41,976 inhabitants (25,89,625 are males and 24,52,351 females).
Arsenic contamination status in groundwater of Hoogly district
To date, we have analyzed 2212 hand tubewell water samples from 218 villages/Para/wards in 69 GP’s/ Municipal area from 17 out of 18 blocks in Hoogly. We have found arsenic concentration above 10 µg/L in 397 (17.9%) hand tubewells and in 146 (6.6%) from above 50 µg/L and 3 hand tubewell samples had arsenic concentrations above 300µg/L.Tableshows the groundwater arsenic contamination status in 17 blocks of Hoogly.Figure shows the groundwater arsenic situation in each block of Hoogly with Pie-diagram diagram distribution. From the above analysis, it appears that in 16 blocks groundwater contains arsenic above WHO guideline value of arsenic in drinking water (10 µg/L) and in 11 blocks above Indian standard value for As in drinking water (50 µg/L). None of the collected water samples contains arsenic above 1000µg/L
Block | Total samples analysed | Distribution of total samples in different arsenic concentration (mg/L) ranges | %of Samples with As >10mg/L | % of Samples with As >50mg/L | Max. conc.mg/L (samples with As >1000mg/L | ≤3 | 4-10 | 11-50 | 51-100 | 101-200 | 201-300 | 300-500 | 501-1000 | Arambag | 100 | 93 | 7 | | | | | | | 0 | 0 | 6 | Balagarh | 734 | 364 | 77 | 163 | 69 | 46 | 13 | 1 | 1 | 39.8 | 17.6 | 600 | Chanditala I | 99 | 87 | 9 | 3 | | | | | | 3.0 | 0 | 33 | Chanditala II | 103 | 58 | 37 | 6 | 1 | 1 | | | | 7.4 | 1.9 | 103 | Chunchura Mogra | 57 | 43 | 12 | 2 | | | | | | 3.5 | 0 | 38 | Dhaniyakhali | 116 | 78 | 29 | 8 | | | 1 | | | 7.8 | 0.9 | 225 | Goghat I | 121 | 84 | 29 | 6 | | 2 | | | | 6.6 | 1.7 | 147 | Haripal | 58 | 50 | 4 | 3 | 1 | | | | | 6.9 | 1.7 | 100 | Jangipara | 51 | 42 | 5 | 4 | | | | | | 7.8 | 0 | 25 | Khanakul I | 102 | 78 | 20 | 2 | 1 | | | 1 | | 3.9 | 2.0 | 390 | Khanakul II | 66 | 60 | 3 | 1 | 1 | 1 | | | | 4.5 | 3.0 | 137 | Pandua | 52 | 23 | 7 | 19 | 3 | | | | | 42.3 | 5.8 | 61 | Pobla Dadpur | 88 | 56 | 27 | 4 | | 1 | | | | 5.7 | 1.1 | 142 | Pursura | 123 | 83 | 32 | 8 | | | | | | 6.5 | 0 | 38 | Singur | 101 | 74 | 19 | 7 | 1 | | | | | 7.9 | 1.0 | 100 | Sreerampur | 130 | 114 | 10 | 5 | | 1 | | | | 4.6 | 0.8 | 200 | Tarakeshwar | 111 | 82 | 19 | 10 | | | | | | 9.0 | 0 | 37 | Total | 2212 | 1469 | 346 | 251 | 77 | 52 | 14 | 2 | 1 | 17.9 | 6.6 | 600 |
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