Press Esc to close
Sunday 19 February 2017
News updated at 5:24 PM IST
Weather
Max: 29.3°C
Min : 15.9°C
In Bengaluru
clear sky

Bangalore's ground water has high radon content

New Delhi, Aug 29, 2013, DH News Service

Traces of radon in high levels could directly cause stomach, lung cancer

File Image: For representational purpose
A survey by Central Ground Water Board (CGWB) has revealed that Bangalore city’s ground water contains high level of radioactive gas radon.

The CGWB, under the Ministry of Water Resources, said all the samples collected from Bangalore city for the survey had high radon content exceeding 11.1 Bacquerel per litre, according to the maximum permissible limit determined by the US Environmental Protection Agency.

The CGWB collected around 80 samples from various parts of southern Karnataka, including 30 samples from Bangalore city, all of which had high presence of radioactive gas radon, said union minister for water Harish Rawat in his written reply to the Rajya Sabha on Thursday.

Thirty-six out of the total 39 samples collected from Tumkur district and one out of seven samples collected from Chamarajnagar district also recorded high radon content.

However, test on borewell water taken from Mysore showed that radon content was within the permissible limit in the district. A carcinogenic substance, traces of radon in high levels could directly cause stomach and lung cancer, according to experts. The permissible level of radon is 11.83 Bq/litre. Levels of radon in Bangalore’s ground water is estimated between 56 Bq/l and 1000 Bq/l. “Radon contamination, geogenic in nature, above permissible limit is generally present in freshly pumped water”, said the Minister in his reply.

Radon has a life of only 3.8 days, as its concentration changes significantly on abstraction, aeration, storage and boiling.

Hence, groundwater pumped from borewells and stored in overhead tanks is safe for consumption.

The radon gas escapes into the atmosphere drastically reducing its concentration in water, making it safe for drinking.

 

Go to Top

Photo Gallery
Theater Person Lakshmi Chandrashekar in an interview to Prajavani Metro for ' Naa Kanda...

Theater Person Lakshmi Chandrashekar in an interview to Prajavani Metro for ' Naa Kanda...

A n aircraft take off in a backdrop of sun set on the last day of the 11th biennial edition...

A n aircraft take off in a backdrop of sun set on the last day of the 11th biennial edition...

A Truck caught fire , at Road in Tinsukia, Assam on Saturday...

A Truck caught fire , at Road in Tinsukia, Assam on Saturday...

Virat Kohli speaks at 49th All India Central Revenue Sports Meet ...

Virat Kohli speaks at 49th All India Central Revenue Sports Meet ...

Indian Air Force's helicopter aerobatic team 'Sarang' on the last day of the 11th Biennial edition..

Indian Air Force's helicopter aerobatic team 'Sarang' on the last day of the 11th Biennial edition..

Skycat Wingwalkers, the Scandinavian aerobatic team, makes a heart on the last day of AERO INDIA...

Skycat Wingwalkers, the Scandinavian aerobatic team, makes a heart on the last day of AERO INDIA...

A three-months-old hippopotamus is seen with its mother Pippa at the Le Cornelle Animal Park...

A three-months-old hippopotamus is seen with its mother Pippa at the Le Cornelle Animal Park...

Bollywood actor Neil Nitin Mukesh with his wife Rukmini during their wedding reception in Mumbai...

Bollywood actor Neil Nitin Mukesh with his wife Rukmini during their wedding reception in Mumbai...

A ball of fire from explosives goes up during the ongoing U.S.-Thai joint military exercise...

A ball of fire from explosives goes up during the ongoing U.S.-Thai joint military exercise...

Sibrerian birds frolic over Narmda River waters in Jabalpur...

Sibrerian birds frolic over Narmda River waters in Jabalpur...

Like us on Facebook

Copyright 2017, The Printers (Mysore) Private Ltd., 75, M.G Road, Post Box 5331, Bengaluru - 560001
Tel: +91 (80) 25880000 Fax No. +91 (80) 25880523