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There may be gas in your home causing lung cancer. Here's what to do about it

Municipalities in Newfoundland and Labrador are taking action against radon, an invisible radioactive gas that causes lung cancer. In Conception Bay South, 30 per cent of homes tested had high levels of radon. Now municipalities are encouraging homeowners get a radon test kit.

N.L. municipalities are encouraging residents to test their homes for radon

A woman holding a small square plastic device with a barcode on it, wrapped in plastic
The C-NRPP recommends Radonova's Radtrak³ Alpha Track Long-Term Test, to find out a home's radon levels. (Curtis Hicks/CBC)

You can't see it, you can't smell it and you can't taste it — and it's the No. 1 cause of lung cancer for non-smokers. 

Radon is a natural radioactive gas that comes from the ground. It isn't a problem when it's released into the air outside, but it's dangerous when trapped inside our homes. 

Last winter, 110 homes in Conception Bay South were tested for radon gas, and 30 per cent of them had levels above Health Canada's guidelines.

"It was a little bit of a surprise, maybe because we didn't know a lot about it," said Deputy Mayor Andrea Gosse. "But since that time we've become more educated and we want our community more educated."

Now municipalities in Newfoundland and Labrador — including C.B.S. and Mount Pearl — will take part in November in what's called Radon Action Month.

Chart that shows 110 houses. 30 percent of houses are in red, which have high radon levels. It reads 110 houses participated by testing radon gas during the winter of 2023 using 91-day alpha track tests. This represents approximately 1% of the community dwellings. 30 percent of homes test above Health Canada's guideline of 200 Bq/m3.
Last year, homes in CBS participated in Take Action on Radon campaign, and encouraged people to test their homes for radon. (CBC)

The municipalities are encouraging residents to test their homes for radon, and are providing free test kits from the Health Canada-funded Take Action on Radon campaign.

The test is a small device that you place in your home, at the lowest lived-in level. After 91 days, you put in an envelope and send it to a lab to be tested. 

WATCH | Abby Cole breaks down how to find if radon is in your home

Radon — the other silent killer. How to find out if it’s in your home

1 month ago
Duration 1:51
You can’t see, smell or taste it, and it causes lung cancer. The CBC’s Abby Cole breaks down how to find out if radon has made your house its home.

"Simple. It's like it's like an ant trap," said Gosse. "Nothing to do, nothing to monitor. I even forgot it was in the house until I got my email and said, oh, I've got to put that together now and send it in."

Gosse said there is no reason not to find out if your home contains radon. 

"It's a proactive measure and a very simple … I would recommend, you know, residents take part."

Some test kits not suitable

Conception Bay South has more test kits on the way, and Mount Pearl distributed all 400 of its kits within hours of publicizing them.

Consumers can buy their own tests in stores, but not all are recommended by local experts. 

Woman in grey blazer stands in front of desks.
Andrea Gosse, the deputy mayor of CBS, was surprised when she found out 30 per cent of homes had higher then recommended levels of radon. (Curtis Hicks/CBC)

For instance, CBC went to a Home Depot store to see what radon test kits are available, and found Pro-lab's Long-Term Radon Gas Test Kit. 

However, Pam Warkentin, Take Action on Radon's executive director, says this test is not on the Canadian National Radon Proficiency Program's list of providers. She said customer feedback demonstrated it doesn't properly report radon levels. The lab for the test kit is also in the U.S., which she said has caused issues with timely testing. 

Warkentin said consumers should refer to the device list on the Canadian National Radon Proficiency Program website before purchasing a test kit. 

"So we do really want to caution people to make sure that they when they purchase them that they check our listing to buy one that is working," said Warkentin.

To buy a radon test kit, the Take Action on Radon website lists Transfer Radon, the only certified company in N.L.

They sell the recommended Radtrak³ Alpha Track Long-Term Test, and other short-term and digital tests. 

"Health Canada recommends that anything over 200 Bq/m³ be mitigated … within two years," said Katie Thorne, Transfer Radon co-owner. 

"It can be anywhere. So you don't really know if your neighbour might have it, or you might ... The only way to know is to test."

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ABOUT THE AUTHOR

Abby Cole is a reporter with CBC News in St. John's and is pursuing a master's in digital innovation in journalism studies at Concordia University.

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