Ganga-Meghna Brahmaputra || West Bengal || Bangladesh || Middle Ganga Plain, Bihar || Uttarpradesh
Jharkhand || North-East Hilly States || Rajnandgaon, Chattisgarh || Behala, Kolkata, WB || As toxicity- Homeopathic Treatment
Effectiveness & Reliability - As Field Testing Kits || Utility Of Treatment Plant
Causes, Effects & Remedies - Groundwater As Calamity || References

Arsenic Poisoning in West Bengal : Field Testing Kits for Arsenic

FIELD TESTING KITS FOR ARSENIC: HOW EFFECTIVE ARE THE MILLION-DOLLAR PROJECTS?

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Results of Field-Kits pertaining to field samples of Bangladesh and West Bengal

In Bangladesh and West Bengal, field kits are primarily needed to identify whether water contains arsenic above or below 50 µg/l, the permissible limit for drinking water accepted by the governments of the two countries. Hence, depending on the detection limits of field-kits, we may consider using them to measure arsenic above or below 50 µg/l.

Field-Kits Lowest detection limit
AAN 20 µg/l
E-Merck 100 µg/l could be 50 µg/l
Aqua Kit 50 µg/l (YES/NO)
NIPSOM 20 µg/l
AIH&PH 50 µg/l

Available report on arsenic Field-Kit efficiency from Field level work are of 3 categories (Report from UNICEF/BRAC; University College, London; NEERI/WHO; UNICEF/DPHE/BRAC)

1 < 50 µg/l

2 50 µg - 200 µg/l

3 > 200 µg/l

Distribution of arsenic in tubewell water from the affected districts of Bangladesh and West Bengal

Country Total No. of samples analysed <10 µg/l 10-49 µg/l 50-200 µg/l >200 µg/l
West Bengal -India 65,245 51.48% 18.41% 22.44% 7.67%
Bangladesh 14,500 34.20% 14.05% 23.49% 28.26%

Country Total no. of samples >= 50 µg/l % of samples having arsenic between 50 µg/l and 200 µg/l
West Bengal-India 19,639 74.53%
Bangladesh 7,504 45.39%

Opinion on field-kit efficiency < 50 µg/l. In field samples

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