Database PM2.5 and NO2 disease burdens for 13,000 cities per GBD methodologies. Share SHARE Facebook share Twitter LinkedIn Copy URL Email Download Download UrbanAQ.py en Added on: 20 May, 2025 Breadcrumb Home Resource Library PM2.5 and NO2 Disease Burdens For 13,000 Cities Per GBD Methodologies. This website provides estimates of fine particulate matter (PM2.5) and nitrogen dioxide (NO2) concentrations and associated disease burdens in >13,000 urban areas globally from 2000-2019. Methods are consistent with the Global Burden of Disease 2019 study, to the extent possible.