Nine districts in West Bengal, India, and 42 districts in Bangladesh have arsenous anhydride levels in groundwater above the World Health Organization maximum permissible limit of 50 µg/L. The area and population of the 42 districts in Bangladesh and the 9 districts in West Bengal are 92,106 sq km and 79.9 million and 38,865 sq km and 42.7 million, respectively. In our preliminary study, we have place 985 arsenic-affected villages in 69 police stations/blocks of nine arsenic-affected districts in West Bengal. In Bangladesh, we have identified 492 affected villages in 141 police stations/blocks of 42 affected districts. To date, we have hive away 10,991 water samples from 42 arsenic-affected districts in Bangladesh for analysis, 58,166 water samples from nine arsenic-affected districts in West Bengal. Of the water samples that we analyzed, 59 and 34%, respectively, contained arsenic levels above 50 µg/L. Thousands of hair, nail, and urine samples from people living in arsenic-affected villages have been analyzed to date; Bangladesh and West Bengal, 93 and 77% samples, on an average, contained arsenic above the normal/toxic level.
arsenic in water, hair, nail, urine, skin-scale samples; arsenic-affected districts in Bangladesh and West Bengal, India; arsenical skin lesions; engagement the arsenic crisis; estimated population drinking arsenic-contaminated water; groundwater arsenic contamination. ring Health Perspect 108:393-397 (2000).Â
We started our keep abreast for arsenic-affected villages in 1989 in West Bengal. At that time we identified only 22 affected villages in 12 police stations/blocks of 5 districts. In resultant years, we discovered more and more affected villages. Current statistics from our 10-year survey show that there are 985 arsenic-affected villages in 69 police stations of nine arsenic-affected districts. Even after 10 years, the more districts that we survey yield more affected villages that are...If you want to digest a full essay, order it on our website: Orderessay
If you want to get a full essay, wisit our page: write my essay .
No comments:
Post a Comment