Scientists have identified a new ‘arsenic hotspot’ for groundwater in India

Scientists have identified a new ‘arsenic hotspot’ for groundwater in India

New Delhi: Scientists, including members of the National Institute of Hydrology (NIH), have found an increase in high arsenic levels in well water in parts of India where there is a general threat of weapons. It was not generally considered a major concern.
Arsenic in drinking water from wells has serious health consequences, including premature deaths from cancer and heart disease in many parts of the world, especially in the Indian subcontinent, the researchers said.
Based on recent reports of domestic groundwater use in rural and urban areas, they estimate that about 18 million 30 million people in India are currently at high risk of arsenic from the supply of drinking water.
Researchers, including Bishwajit Chakraborty, a senior NIH scientist in Bihar, have developed a predictive model that focuses only on India.
The new risk model, published in the International Journal of Environmental Research and Public Health, can be used to inform the priority of groundwater quality testing and environmental health awareness programs.
His model confirms the high probability of finding high arsenic well water in the Ganges and Brahmaputra river basins in northern India.
This model also reveals the high water potential of high arsenic wells in other Indian regions, where previously the risk of arsenic was not generally considered a major concern – so much so that water in many of these areas Arsenic is not tested regularly.
Researchers say that these areas include parts of southwestern and central India and most of the sedimentary and sedimentary rock-affected areas.
The study suggests that specific areas should be better identified in order to reduce the negative public health consequences of drinking high-quality well water.
Researchers also highlight the importance of systematic hazard testing, not only in known high-risk areas, but also by random sampling of all wells used for drinking water.
The researchers acknowledged that there are known and important limitations to such a modeling approach.
He said that this model is mostly based on data obtained from satellites and is also less reliable for deep wells and does not take into account the variations in water arsenic well over time.
Also, well the arsenic content of water is known to change massively at very short distances, so for a particular well, the model will never be a better alternative to the good chemical analysis of water produced from that well. ۔
However, this model suggests new areas in India that should be thoroughly sampled and analyzed for arsenic. This will help save lives in these areas.
“The results of this open access joint Indo-UK study will help create greater awareness about the effective distribution of arsenic in population wells,” said Chakraborty.

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