"Take Care of Radon" has about 110 searches per month, difficulty 18. The site ranks around 63rd place. It is the name of the Canadian campaign returning in November: the requested action is to measure radon at home.
The Action
Place a detector on the lowest occupied floor, long enough to compare the result to 200 Bq/m³. The Health Canada threshold is that level. The 91-day test follows the normal life of the home. The 4-day test detects faster. Both sheets show $74.72 taxes included.
After the Number
Below 200 Bq/m³, you have a measurement of the period. Above, a mitigation quote sets the price before work: $2,799.99 + taxes for a standard installation. The phone number is 418-681-7964.