Mitigation and Remedy of Groundwater Arsenic Menace in India

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Mitigation and Remedy of Groundwater Arsenic Menace in India : A Vision DocumentTable 2.6: Summary of groundwater arsenic contamination status in Uttar Pradesh, India(Chakraborti et. al. 2008a)Physical parametersUttar PradeshArea in sq. km. 238000Population4.Desriin million77741166No. 5.Sahdei of districts Bujurg surveyed 99459 so far3 (Ballia, Gazipur &12 Darbhanga 1.Biraul 233029Varanasi )13 Kishanganj Arsenic 1.Kishenganj affected area in sq. 185535 km. 103752.Bahadurganj 20588814 Purnea Total 1.Purnea population East in arsenic 349118 affected 3 districts (in million) 6Number 2.Kasba of arsenic affected 143784 districts where groundwater arsenic315 Lakhisarai >50µg/L 1.Lakhisarai 2616202.Pipariya 31020No. of blocks surveyed so far 10Total Population 10,471869Number of arsenic affected blocks where groundwater arsenic >10 µg/L 9Number of arsenic affected blocks where ground water arsenic >50 µg/L 7Total number of hand tube-well water samples analyzed 4780Number of arsenic affected blocks where groundwater arsenic >10 µg/L 45.48Number of arsenic affected blocks where ground water arsenic >50 µg/L 26.51% of hand tube-wells having arsenic concentration >300 µg/L 10Maximum arsenic concentration so far we analyzed (µg/L ) 3192Number of arsenic affected villages with ground water arsenic>50µg/L69Number of arsenic affected villages with ground water arsenic>10µg/L100Population potentially at risk from arsenic contamination > 10 µg L -1 ( inmillion )3NIH & CGWB 37
Arsenic Menace in India- An AppraisalTable 2.7: Summary of the arsenic contamination scenario in Jharkhand(Chakraborti et. al. 2008a)Table 2.8: Summary data on arsenic in groundwater in Assam (Nickson et. al. 2007).DistrictNo.blocksaffectedTotalsourcestestedSources10-50µgL -1Sources> 50µgL -1% Sources District> 50 µgL -1 populationBarpeta 5 130 21 7 5.4 1,647,201 -Bongaigaon 3 100 15 6 6.0 904,835 -Cachar 7 210 68 59 28.1 1,444,921 -Darrang 4 254 92 9 3.5 1,504,320 -Dhemaji 5 539 128 83 15.4 571,944 -Dhubri 6 435 130 21 4.8 1,637,344 -Goalpara 2 145 11 3 2.1 822,035 -Golaghat 5 268 67 30 11.2 946,279 -Hailakandi 4 159 45 11 6.9 542,872 -Jorhat 6 224 96 24 23.1 999,221 -Kamrup 1 261 39 1 0.4 2,522,324 -Karimganj 6 811 150 61 7.5 1,007,976 -Lakhimpur 5 218 50 9 4.1 889,010 -Marigaon 1 271 40 2 0.7 776,256 -Nagaon 1 314 55 1 0.3 2,314,629 -Nalbari 5 148 25 14 9.5 1,148,824 -Sibsagar 3 206 72 15 7.3 1,051,736 -Sonitpur 3 227 34 6 2.6 1,681,513 -TOTAL 72 4920 1138 362 7.4 22,413,240 -Projectedpopulationat risk38NIH & CGWB
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Mitigation and Remedy of Groundwater Arsenic Menace in India

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