In the aftermath of the 8.2 magnitude earthquake on March 28, 2025, which affected many parts of Thailand, professors from the Department of Nuclear Engineering, Faculty of Engineering, Chulalongkorn University, have warned of the increased risk of radon gas exposure—particularly in Bangkok, where seismic activity may cause underground fissures that allow radon to seep into homes and buildings. As radon is a naturally occurring radioactive gas linked to lung cancer, the department urges the public to monitor indoor radon levels and improve ventilation in ground-level areas. Chulalongkorn University is the first institution in Thailand equipped with a radon calibration system and offers professional radon measurement services for households, industries, and public institutions to promote safety and build public confidence.