Air Quality Sources
A curated set of first-party sources for health guidance, AQI methodology, monitoring data, atmospheric modelling and development research.
Health & global guidance
WHO Air Pollution
Global health information, pollutant health effects and air-quality guidance.
Visit primary source ↗WHO Global Air Quality Guidelines
Evidence-based guideline values for PM2.5, PM10, ozone, NO2, SO2 and CO.
Visit primary source ↗WHO Ambient Air Pollution Fact Sheet
Health and policy context for ambient air pollution.
Visit primary source ↗AQI & official air-quality information
EPA / AirNow AQI Basics
Official U.S. AQI categories and communication framework.
Visit primary source ↗European Air Quality Index
Official European AQI information and station/modelled layers.
Visit primary source ↗Open data & atmospheric modelling
OpenAQ
Open-access API and documentation for publicly available air-quality measurements.
Visit primary source ↗Copernicus Atmosphere Monitoring Service
Worldwide atmospheric composition forecasts and European air-quality information.
Visit primary source ↗Development & economic evidence
World Bank Pollution Management and Environmental Health
Research and development resources on pollution management, health and economic impacts.
Visit primary source ↗World Bank – Accelerating Access to Clean Air
Global assessment of clean-air policies, exposure and investment needs.
Visit primary source ↗Source-use policy
These links are provided to help readers verify information at the originating institution. Availability, licensing and terms can change. Data users should review the current terms of the relevant provider before downloading, redistributing, storing, publishing or commercialising data.