Pollution Stripes

Daily PM2.5 as colour stripes. Compare cities in a year, or years for a city.

Each vertical stripe represents one day of air pollution, and visualizes seasonal variation in pollution levels, with the white point at #Moderate air quality of 35.4. Consolidated data from the Pakistan Air Quality Initiative (PAQI), the provincial Environmental Protection Agencies (PK-EPA, EPD and SEPA), and U.S Department of State AirNow data reported as 24-hour average concentration of particulate matter of 2.5 micrograms per cubic meter (µg/m³).