radon in York rowhomes 5

https://alpha-wiki.win/index.php/Why_a_Sump_Pit_Radon_Cover_Matters_for_Your_Home

In York rowhomes, radon can be a concern because these attached houses often share basements and crawl spaces where the gas can accumulate undetected. You might not see or smell it, but testing is the only way to know if levels are safe. I've heard neighbors mention needing a mitigation system after a simple charcoal test showed elevated readings.