Firefighters put their lives on the line extinguishing fires, all while increasing their chances of developing cancer. The Tucson Fire Department is working to reduce and track their exposure to cancer-causing elements. TFD began taking a deep dive into understanding and tracking cancer risks when they lost one of their own five years ago. Tom Quesnel was an arson investigator and with TFD for 25 years. "His emphasis on his diagnosis with cancer was really important for us to understand what he went through," Darin Wallentine, Deputy Chief of Safety and Wellness said. Wallentine says TFD has been implementing practices to mitigate the high risk of cancer firefighters face.