Hello all, hope everyone is well!
Had report back this morning from agents and on it was “radon Level 3”. Now this means nothing to me but how many levels are there and is a level 3 considered as high? Just trying to google it and look into it. But wanted to see what others view this as and what their level is if they have one.
Where i live our reading for the village is 1/3 so i am assuming that 3 is the highest level in the scale.
3 does seem to be at the “time to do something” level…
here’s a link from 2021 for France
Connaître le potentiel radon de ma commune | IRSN.
@Kmanthena4 you might want to speak with your Mairie and find out from them what the local situation is regarding Radon in 2025.
Here’s a link from 2024 which says that level 3 is serious.
Qu'est-ce que le radon ? - Ministère du Travail, de la Santé, des Solidarités et des Familles).
We are in a Radon high risk area because we are on granite. It was said to be level 2 but that was just based upon typical levels in areas like ours where the houses themselves were built of granite and cellars built on top of solid granite. We were given the opportunity to have a Radon check on the property which involves them placing dosimeters in appropriate places for I think 6 months and then analysing it. Radon levels were negligible .So, it seems it depends what your house is made of and it’s construction. Ours is a modern house.
Maybe fitted with a raydon barrier from construction?
Maybe useful data
To check your area in France
I don’t know how accurate the website is, but our smallish commune is level 1, but every commune around us for quite some distance is level 3. I can’t think why that would be; the whole area is granite rock and the houses are made of it including my own. I’m not unduly worried as there’s plenty of locals living to ripe old ages. 
This is more than a useful read if you live in a place with granite and need some ‘interesting’ info on the matter:
…I just want an instrument measuring mico becs…
12 million people in France are in a level 3 area, so it’s not like it’s you and a handful of others, it’s a lot of us. I just looked into what it meant and follow basic common sense ventilation advice. The government give out meters on and off to people in higher risk areas, Im not sure if it’s something they currently do.
‘Our’ grave in the cemetary is completely surrounded by granite, as are about half of all the others, never occurred to me before that the place was actually touting for business. 
Radon probably won’t be an issue when you eventually take up residency there…
Was just wondering if it was beckoning me sooner, that was all. 
Thanks, to be honest never even thought this was a worldwide issue. Only after researching it seems to be quite common. Being outside the house in the summer wont be exposed to much of it as its diluted in the air with low levels to cause cancer. But is the inside of the house where most people spend their time, especially during the winter. And those who work from home. Something to really think about. Just checked my house in UK and its 5-10% which is medium level 2. That’s one negative for buying this house. But i suppose we can plan for works to be done that includes measures to stop the build up of Radon inside the house.
Thank you! You are a credit to this forum, very helpful and very informative! Like an agony aunt haha
I grew up in Cornwall where it has been well known about for a long time. I can remember after Chernobyl a scientist being asked to describe the radioactive fallout in North Wales in layman’s terms, he replied saying that it would be similar to spending a couple of weeks on holiday in Cornwall. Most of my classmates and I have made it through to retirement.
Good to hear!
We have all the documentation from the house build including specifications and price and there is no mention of any sort of preventative measures for radon. It’s something we checked when we had the testing done. I think it’s because the house is raised above the ground by about a metre with a well ventilated space underneath.
That’s interesting. We were told level 2, but the website says level 3 for our commune.
We had ours done a few years ago. They’re currently asking in neighbouring communes.
I think you’d have found out by now, if that was the case