home radon test
https://theyorkcountyradontestingden.oakridgedigest.com/posts/radon-testing-in-york-county-homes-gains-urgency-as-health-officials-highlight-risks
I finally picked up a home radon test after hearing from a neighbor about high levels in basements nearby. It was just a simple kit you leave out for a few days, then mail into a lab. The waiting felt nerve-wracking, but knowing the air quality in our home is worth the peace of mind.