Press Esc to close

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 volunteer uses a water hose to fight a wildfire near houses on the outskirts of Obidos...

A volunteer uses a water hose to fight a wildfire near houses on the outskirts of Obidos...

Jammu and Kashmir Women Police personnel paying tribute to police martyrs during Police...

Jammu and Kashmir Women Police personnel paying tribute to police martyrs during Police...

Executive producer Angelina Jolie arrives at the Los Angeles premiere of 'The Breadwinner' on...

Executive producer Angelina Jolie arrives at the Los Angeles premiere of 'The Breadwinner' on...

People take photos as the Sarang Aerobatic team of Indian Air force perform formation flying...

People take photos as the Sarang Aerobatic team of Indian Air force perform formation flying...

Indian Air force pilot showing their skill at Bamhrauli air station as the Indian Air Force...

Indian Air force pilot showing their skill at Bamhrauli air station as the Indian Air Force...

Devotees offer prayers to Goddess Kali on the banks of river Ganga before immersion in Kolkata on...

Devotees offer prayers to Goddess Kali on the banks of river Ganga before immersion in Kolkata on...

Indian captain Virat Kohli during a practice session ahead of the India-New Zealand ODI in Mumbai...

Indian captain Virat Kohli during a practice session ahead of the India-New Zealand ODI in Mumbai...

Indian Air force paratroopers perform maneuvers at Bamhrauli Air station as the Indian Air Force...

Indian Air force paratroopers perform maneuvers at Bamhrauli Air station as the Indian Air Force...

Orphan girls put a tilak on boys forehead, during the Bhai Dooj festival, at an orphanage...

Orphan girls put a tilak on boys forehead, during the Bhai Dooj festival, at an orphanage...

Afternoon light fades behind the warmly lit royal crematorium and funeral complex for the late...

Afternoon light fades behind the warmly lit royal crematorium and funeral complex for the late...

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.