@article{202011.0695, doi = {10.20944/preprints202011.0695.v1}, url = {https://doi.org/10.20944/preprints202011.0695.v1}, year = 2020, month = {November}, publisher = {Preprints}, author = {Asrah Heintzelman and Vijay Lulla and Gabriel Filippelli}, title = {Substantial Decreases in NO2 Pollution Measured by Ground-Based Monitors in US Cities During COVID-19 Shutdowns from Reduced Transportation Volumes}, journal = {Preprints} }