Measures for reducing exposure
Because particulate matter is a carrier of these radioactive particles, it is important to keep concentrations of inhaled particulate matter as low as possible.
It is important that residents ventilate their homes properly by opening grates or opening windows and doors from time to time in order to air the home properly. You can reduce rising radon from the crawl space by ventilating the crawl space properly. You should therefore ensure that ventilation grates in the crawl space don’t become blocked. Covering the ground of the crawl space and/or the floor helps too.
For building professionals
For building professionals, people who are involved with particulate matter derived from concrete and stone, it is very important to limit inhalation of particulate matter. Disposable masks offer limited protection. It is better to use longer-lasting respiratory protection such as a half-face mask or a full-face mask with a P3 filter. In poorly ventilated rooms, you must use a respiratory air system that blows clean fresh air into the mask. This prevents s shortage of oxygen or suffocation caused by too high a concentration of carbon dioxide.