Groundwater in AP contaminated: CGWB report
The report was tabled last month in Lok Sabha meeting. It said that nitrate has been found above the permissible limit (45 mg per litre) in groundwater of 23 districts and high content of fluoride (above 1.5 mg per litre) in ground water of 20 districts except East Godavari, Nizamabad and Srikakulam.
Content of iron was also found above the permissible limit (1 mg per litre) in groundwater of 15 districts including Hyderabad, Ranga Reddy and Visakhapatnam.
Such groundwater is dangerous and unsuitable for drinking as it can cause cancer, birth defects, miscarriages and fluorosis, say scientists. Fluoride content up to 2 mg per litre results in dental fluorosis. It can affect different tissues of human body with more exposure affecting teeth, bones, making them brittle and also causing aging.
Experts say that due to excess use of complex fertilizers by farmers with wrong disposal of waste water, the nitrate concentration in groundwater has been increasing. Many industries in Hyderabad is also disposing waste into the ground.
The groundwater levels in various parts of the state is already diminishing, additionally summer will leave no option for people but to depend on groundwater.
It is found that 60-70 percent population of state use groundwater for drinking purpose and only around 10 to 20 percent of groundwater is treated water. Now, people have also stopped boiling water due to increasing cooking gas prices.
According to experts, presence of silicon and strontium in groundwater was also found but was not covered in the report. Groundwater contamination due to these metals can be linked to kidney diseases in Nellore, Prakasam and Srikakulam districts. To confirm this, a research is ongoing to find whether these metals are triggering kidney disease or not.
The CGWB report of state has also alarmed Delhi and 19 other states in the country.
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