Dr. Neitzel's research interests focus on assessment of health and safety hazards in occupational and community settings, with a particular emphasis on exposures and human health impacts associated with noise, one of the most common environmental exposures in the US and internationally. He is also interested in exposures and potential health effects associated with informal recycling of electronic waste, and is examining these impacts among workers and community members in Thailand and Chile.  He also directs the UM Center for Occupational Health and Safety Engineering, as well as the Exposure Research Lab,  is the principal investigator of the Apple Hearing Study, and is the Associate Director for the UM Office of Global Public Health.