Substantial decreases in NO2 emissions from reduced transportation volumes in US cities during COVID-19 shutdowns reveal health vulnerabilities of urban populations
Asrah Heintzelman1,2, Vijay O. Lulla3, and Gabriel M. Filippelli1,2#
1Department of Earth Sciences, Indiana University-Purdue University Indianapolis (IUPUI)
2Environmental Resilience Institute, Indiana University
3Department of Geography, Indiana University-Purdue University Indianapolis (IUPUI)
#Corresponding author: gfilippe@iu.edu