Press Esc to close
Monday 21 August 2017
News updated at 12:43 AM IST

Bangalore's ground water has high radon content

New Delhi, Aug 29, 2013, DH News Service 0:51 IST

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
A butterfly on a flower at a park in Guwahati on...

A butterfly on a flower at a park in Guwahati on...

An artist giving finishing touches to the idols of Lord Ganesha during the upcoming...

An artist giving finishing touches to the idols of Lord Ganesha during the upcoming...

Villagers fishing in the flood-hit Balimukh village in Morigaon district of Assam...

Villagers fishing in the flood-hit Balimukh village in Morigaon district of Assam...

Women take part in an attempt to break the Guinness World Record for the largest 'Disco Dance' to...

Women take part in an attempt to break the Guinness World Record for the largest 'Disco Dance' to...

A villager carrying household items submerged in flood waters, at the flood-hit Balimukh...

A villager carrying household items submerged in flood waters, at the flood-hit Balimukh...

Legend cricketer Sachin Tendulkar with his fans during the 2nd edition of Mumbai Half Marathon...

Legend cricketer Sachin Tendulkar with his fans during the 2nd edition of Mumbai Half Marathon...

Fruit vendors row a boat as they look for customers inside the Dal Lake in Srinagar, the summer...

Fruit vendors row a boat as they look for customers inside the Dal Lake in Srinagar, the summer...

Bollywood actor Ranveer Singh walking the ramp at the Lakme Fashion Week Winter Festive 2017...

Bollywood actor Ranveer Singh walking the ramp at the Lakme Fashion Week Winter Festive 2017...

A flower composition is seen during the 48th Debrecen Flower Festival in Debrecen, 226 kms east...

A flower composition is seen during the 48th Debrecen Flower Festival in Debrecen, 226 kms east...

Bollywood actor Vidyut Jamwal showcases a creation by designer Kazingmei during Lakme Fashion...

Bollywood actor Vidyut Jamwal showcases a creation by designer Kazingmei during Lakme Fashion...

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
Powered by Yodasoft Technologies Pvt. Ltd.