Radon in rental properties is a hidden health risk many tenants don’t think about. This odorless, colorless gas can seep from the ground into basements or lower floors, and long-term exposure is linked to lung cancer. I recently tested my own apartment with a simple home kit—took just a few days to get results. Landlords in some states aren’t required to disclose radon levels, so it’s worth asking or testing yourself. It’s one of those quiet things that’s better to know sooner than later. radon in rental properties 10