Press Esc to close
Thursday 08 December 2016
News updated at 9:35 PM IST
Weather
Max: 29°C
Min : 15°C
In Bengaluru
Partially cloudy

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
Umpire Paul Reiffel is helped by support staff after he was hit by ball during fourth test...

Umpire Paul Reiffel is helped by support staff after he was hit by ball during fourth test...

TMC members during a protest to observe a 'Black Day' against demonetization...

TMC members during a protest to observe a 'Black Day' against demonetization...

Indian captain Virat Kohli celebrates with teammates the wicket of England batsman Jonny Bairstow...

Indian captain Virat Kohli celebrates with teammates the wicket of England batsman Jonny Bairstow...

Co owner of Bengaluru Blasters, Sachin Tendulkar, Allu Arjun and others...

Co owner of Bengaluru Blasters, Sachin Tendulkar, Allu Arjun and others...

An illuminated Braham Sarovar during the ongoing 'International Gita Mahotsav-2016'...

An illuminated Braham Sarovar during the ongoing 'International Gita Mahotsav-2016'...

Shi'ite Muslims beat their chests as they attend a religious precession to commemorate...

Shi'ite Muslims beat their chests as they attend a religious precession to commemorate...

Security jawans stands guard during Encounter between Army and Militants...

Security jawans stands guard during Encounter between Army and Militants...

Fire personnel dousing fire at Sri Krishna Jute Mill,in Howrah district of West Bengal...

Fire personnel dousing fire at Sri Krishna Jute Mill,in Howrah district of West Bengal...

A free medical service were offered to public by AIADMK in memory of the J Jayalalithaa...

A free medical service were offered to public by AIADMK in memory of the J Jayalalithaa...

Swimmers from Seat Hawks exult in joy after reaching Tanneerbhavi beach in Mangaluru...

Swimmers from Seat Hawks exult in joy after reaching Tanneerbhavi beach in Mangaluru...

Like us on Facebook

Copyright 2014, The Printers (Mysore) Private Ltd., 75, M.G Road, Post Box 5331, Bengaluru - 560001
Tel: +91 (80) 25880000 Fax No. +91 (80) 25880523