The 2023 World Air Quality Report provides a global review of air quality data for the year 2023. The report summarizes PM2.5 air quality data from 7,812 cities spanning 134 countries, regions, and territories. The data utilized to create this report was aggregated from more than 30,000 air quality monitoring stations operated by research institutions, governmental bodies, universities and educational facilities, non-profit organizations, private companies, and citizen scientists.
PM2.5 data is reported in units of micrograms per cubic meter (μg/m3) and incorporates the latest World Health Organization (WHO) annual PM2.5 guideline and interim targets for data visualization and risk communication (released in 2021).
The 2023 World Air Quality Report was created from real-time air quality data sourced from IQAir’s global air quality monitoring platform that vets incoming data with validation and calibration protocols to harmonize air quality data from monitoring stations around the world.
Historic air quality data utilized in the creation of this report can be found on the IQAir website, including an interactive map featuring annual city concentrations, global city-level rankings and links to the more than 7,000 dedicated city pages providing local real-time air quality data and information.
IQAir strives to actively involve, educate, and motivate governments, educators, researchers, non-profit organizations, corporations, and individuals to foster collaborative endeavors aimed at enhancing public awareness of air quality. IQAir seeks to facilitate well-informed discussions and inspire initiatives that advance air quality and promote the well-being of communities and cities worldwide.
Download the 2023 World Air Quality Report
