Ground water is one of the major source of water for majority of the population. This ground water is getting polluted due to the increase in addition of the chemical substances in the same.The main source of the same includes soil pollution. Pollution of ground water would be hindering one of the major sources of water for humans which will greatly be affecting their habitats and life styles.
Ground Water: Unfit for Use
According to the latest findings, sixty percent of the ground water in river basin which is supporting more than 750 million people from Pakistan, India, Nepal and even Bangladesh is found to be not fit to be used for drinking purpose. They are even found to be not fit for use of irrigation facility.
Biggest threat being posed to the ground water is in the Indo-Gangetic Basin which is named after the Indus and Ganges rivers.
They are not under the threat of depletion but of being contaminated according to the report published in Journal Nature Geo-science.
Author of the study writing over the same says, “The two main concerns are salinity and arsenic.” Upto a depth of about 650 feet, 23 percent of the ground water which was stored in the basin was too salty.
About 37 percent of the water is affected by means of arsenic over the toxic concentrations.
Extraction of Ground Water:
Indo-Gangetic basin is accounting for about a quarter of the global extraction of the ground water.
It consists of freshwater which is stored underground in crevices and spaces over the soil or rocks, which is fed by rivers and rainfall.
Fifteen to twenty million wells are extracting water from the basin during each year amid the growing concerns about the depletion. It was even found to be falling in other 30 percent which mainly consists of near the highly populated areas.
This newer study is based on the local records of the levels of ground water and its quality from 2000 to 2012. It was found that water table was quite stable or rising across 70 percent of the aquifer.
This ground water can become salty by means of natural and man-made causes which includes inefficient farmland irrigation along with poor drainage system.
Arsenic is also naturally present but its levels are exacerbated by means of the use of fertilisers and even mining.
Arsenic poisoning of the drinking water is considered as one of the major problem in this particular region.