Michigan testing blood of firefighters to analyze PFAS exposure Updated 12:29 PM; Today 12:29 PM Flint firefighters work to contain a blaze at a residential structure fire in the 1700 block of Wyoming Avenue on Tuesday, April 20, 2021 in Flint. (Jake May | MLive.com)Jake May Facebook Share LANSING, MI The state of Michigan is taking blood samples from firefighters as part of a project to study how much exposure they receive to toxic PFAS chemicals. This week, the Michigan Department of Health and Human Services (DHHS) announced the launch of the PFAS in Firefighters of Michigan Surveillance (PFOMS) project, a multi-year $1 million biomonitoring effort to assess firefighter exposure to the “forever chemicals.”