Roughly one in five residential buildings in Canada has high radon levels — a figure that’s more than doubled since the late 2000s — while radon-induced lung cancer kills an estimated 3,200 people each year, federal figures show.

This radioactive gas is released from the ground and flows into buildings across the country, but scientists say modern designs and renovations likely play a role in why more Canadians are being exposed in their own homes.

Experts say the only way to know if your home contains a high amount of radon is to test for it.

The process is simple: You can either hire a radon measurement professional or buy your own test kit. (Some communities provide free radon monitors through libraries or local public health units. You can find out more information through the federal Take Action on Radon program.)

Full CBC article click below:

‘Millions of Canadian homes have high levels of cancer-causing radon.  Is yours one of them?‘