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