Towards an Open Global Air Quality Monitoring Platform to Assess Children's Exposure to Air Pollutants in the Light of COVID-19 Lockdowns. - Christina Last; Prithviraj Pramanik; Nikita Saini; Akash Smaran Majety; Do-Hyung Kim; Manuel García-Herranz; Subhabrata Majumdar (CHI Extended Abstracts, 2021)