South Korean researchers have developed an ultra-sensitive ammonia gas sensor capable of detecting leaks as small as 1ppm—a level potentially harmful to humans. The Korea Institute of Materials Science (KIMS) announced the breakthrough, highlighting the sensor’s ability to identify even minute ammonia emissions. This new technology aims to improve safety in environments where ammonia is present, such as industrial facilities and refrigerated storage. Current ammonia detection methods often struggle with such low concentrations, posing a risk to workers and potentially impacting air quality. The sensor's high sensitivity stems from its advanced materials and design, allowing for precise and rapid detection. Researchers believe this invention will significantly contribute to preventing ammonia-related accidents and ensuring a safer environment. Further development and commercialization are expected to follow this key advancement in gas sensing technology.