WHO slashes radon limit in homes, cites lung cancer
September 22nd, 2009
The World Health Organisation (WHO) has drastically cut the maximum amount of radon, a naturally occurring gas, that should be permitted in homes because of strong evidence it causes lung cancer.
In a WHO Handbook on Indoor Radon issued quietly on Monday, it called for public health authorities and the construction industry to make great reductions in exposure to radon, calling it a “major and growing public health threat in homes”.