Report by the Central Groundwater Authority in the matter of Suo Moto arsenic found in groundwater in 25 states dated November 18, 2024. When the matter was listed before the NGT, August 7, 2024, wherein CGWA stated that the reports from seven states/UTs namely Maharashtra, Nagaland, Jharkhand, Tripura, Gujarat, Odisha …
Inorganic arsenic (iAs), a toxic metalloid, affects millions of people worldwide, mainly from drinking contaminated water. Arsenic is a human carcinogen that targets skin, lung, bladder, and possibly other sites. iAs and its methylated metabolites readily cross the placenta and reach the fetus [National Research Council (NRC) 1999], producing effects …
Uttar Pradesh, India's largest state, is blessed with rivers. But what's the use? Each and every river and canal is filled with poisonous muck which seeps into groundwater. The Janhit Foundation in Meerut has carried out several studies which show that Uttar Pradesh's groundwater is loaded with dangerous carcinogenic chemicals. …
Natural adsorbent, laterite soil was selected and found to be an effective adsorbent for arsenic removal from arsenic bearing drinking water. The real arsenic bearing groundwater was collected from Nivedita Palli, 24 Paraganas, one of the arsenic affected areas of West Bengal.
using cow dung as cooking fuel could expose people to arsenic. A recent study shows villagers on the Ganga Meghna Brahmaputra plain were exposed to smoke containing high levels of arsenic everyday while cooking. The study by Jadavpur University's School of Environmental Studies says the region's groundwater is contaminated with …
In this review paper interaction of arsenic with iron hydroxide and effects of anions, such as silicate, phosphate and bicarbonate on arsenic adsorption by iron hydroxides, are discussed. Arsenic is strongly adsorbed on the surface sites of iron hydroxides through the formation of inner-sphere complexes. Interaction of arsenic along with …
Studies on the presence of alpha emitting nuclides in the environment assume importance since they are found to be carcinogenic. Measurement of radioactivity in arsenic contaminated drinking water has already been reported. To perform a detail study the researchers have undertaken a programme to measure radioactivity in drinking water and …
Even after two years, hurricane Katrina still haunts people in us's port city New Orleans in Louisiana state. Floods that came in the wake of the hurricane have left the soil in the city's schools contaminated with layers of arsenic. A recent report by the advocacy group Natural Resources Defense …
Elevated arsenic in groundwater is the greatest environmental problem in Bangladesh. Spatial variability of arsenic in groundwater has been examined by semivariogram analysis that revealed high degree of small-scale spatial variability in alluvial aquifers. Small-scale variability of arsenic concentrations, indicated by high "nugget' values in semivariograms, is associated with heterogeneity …
contamination of groundwater by arsenic, a well-known phenomenon, has now shown up in a different form. Scientists working in the Bengal delta have found that rice grown with or boiled in contaminated water has arsenic residues that are poisoning people in affected areas. The scientists have devised a rice cooker …
Arsenic disturbs magar's immune system Long-term exposure to arsenic could weaken magur fish's ability to fight infection, say researchers at Visva Bharati University, Santinekatan. The team found that arsenic affects head kidney cells
Author describes a success story of implementing a distributed SCADA system first time in India in a rural water supply scheme of PHED, Govt. of West Bengal for arsenic prone areas. The project consists of a 7.5 MGD capacity water treatment plant, two booster stations and fourteen overhead reservoirs, distributed …
a new filter that removes arsenic has come as a boon for communities the world over. Abul Hussam, associate professor at George Mason University, Fairfax, Virginia, has won the 2007 Grainger Challenge for developing a filter that removes arsenic from drinking water. The innovation, called the sono filter, is used …
people with a specific variation in a gene who are exposed to arsenic have greater risk of getting skin lesions and hyperkeratosis, a precursor to skin cancer, say researchers from Kolkata. The gene, called ercc2 (excision repair cross-complementing rodent repair deficiency, complementation group 2), repairs any damage to dna. The …
Fifty percent of the districts in the state of West Bengal in India are exposed to arsenic-contaminated water. A large number of people have been diagnosed with symptoms of arsenic poisoning even though much of the at-risk population has yet to be assessed for arsenic-related health problems. Evidence of arsenic …
>> Abul Hussam, a chemistry professor at George Mason University in Fairfax, was awarded the Grainger Challenge Prize for Sustainability. The Bangladesh-born US citizen was awarded by the Lake-Forest, USA-based Grainger Foundation for his work on a filtration system that prevents serious health problems caused by arsenic in water. >> …
Geographic Information System (GIS) was utilized to apply a modified DRASTIC method to assess the aquifer vulnerability to pollution of English Bazar Block of Malda District, West Bengal, India. In the western, central and southern parts of the study area the aquifer is prone to contamination. Therefore, in these regions …
The large agrarian population of West Bengal drink groundwater with arsenic content anywhere between 0.05 and 3.7 mg/L. Greater than 44% of this population suffers from arsenic related diseases like conjunctivitis, melanosis, hyperkeratosis, and hyper pigmentation. In certain areas gangrene in the limb, malignant neoplasm and even skin cancer have …
In the early 1980s, K. C. Saha from the School of Tropical Medicine in Kolkata attributed skin lesions in West Bengal, India, to exposure to arsenic in groundwater pumped from shallow tube wells. Despite these findings, millions of tube wells have been installed across the Bengal Basin, the geological formation …
