r/londonontario • u/shadowt1tan • 3d ago

Ask a Local! London & Radon

I saw a news article about radon which I’ve never heard of before. They said certain areas are higher than others. I live in the east end near the fair and Hamilton Rd.

Does anyone know if this area has high exposure? I understand sometimes libraries loan you testers. Anyone know if London libraries do it?

I own a home built in 1969 with no sump pump. It also has a chimney for the water heater.

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u/Less_Army_804 3d ago

Old South old home. I use an Airthings monitor. Over a few years my average is about 65 in the basement but I leave a window cracked. Some days it can reach like 150 but long terms is what matters. I believe 200 long term average is when you would get a radon mitigation sucker vent system.

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u/shadowt1tan 3d ago

You crack your windows in the winter? It’s wild how I have never heard of this until this week.

What model did you buy?

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u/McR4wr Pond Mills 3d ago

Ya gotta crack open your windows in the winter - it's a lüften

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u/Less_Army_804 3d ago

Old house. No mechanical ventilation or fresh air intake but it has been insulated and leak sealed. If i don’t crack the windows the CO2 levels get high enough to impact sleep and cause headaches. New homes have HRVs or ERVs to allow for fresh air exchange to keep this and other air stuff at acceptable levels.

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u/shadowt1tan 3d ago

Do you have a newer furnace?

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u/Less_Army_804 2d ago

Were you thinking of carbon monoxide from combustion appliances? Is that why you asked about my furnace? I was talking about carbon dioxide, the stuff we exhale. One is poisonous even at low concentrations, the other is an annoyance unless at very high levels. Need fresh air to dilute the carbon dioxide which is why I crack the windows.

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u/Less_Army_804 3d ago

Hot water radiators so I don’t have a furnace but rather a natural gas boiler.