In this week\u2019s episode, host Daniel Raimi talks with Nikos Zirogiannis, an assistant professor at Indiana University, about excess emissions of air pollutants\u2014emissions that exceed the legal limits. Zirogiannis discusses some potential causes of excess emissions, the health effects of excess emissions, and the gaps in policy and data that could be addressed to help prevent these dangerous events.\n\nReferences and recommendations:\n\n\u201cExcess Emissions: Environmental Impacts, Health Effects, and Policy Debate\u201d by Alex Hollingsworth, David M. Konisky, and Nikolaos Zirogiannis; https://www.journals.uchicago.edu/doi/full/10.1086/723885\n\n\u201cResidents Must Stay Indoors After Texas Chemical Fire\u201d by Cecelia Smith-Schoenwalder; https://www.usnews.com/news/national-news/articles/2019-03-21/deer-park-texas-residents-ordered-to-stay-inside-after-chemical-fire\n\n\u201cThe Big Myth\u201d by Naomi Oreskes and Erik M. Conway; https://www.bloomsbury.com/us/big-myth-9781635573572/