Assessing the Impact of Corona-Virus-19 on Nitrogen Dioxide Levels over Southern Ontario, Canada. - Debora Griffin; Chris Anthony McLinden; Jacinthe Racine; Michael David Moran; Vitali Fioletov; Radenko Pavlovic; Rabab Mashayekhi; Xiaoyi Zhao; Henk Eskes (Remote. Sens., 2020)