Air Quality Around the World

Air quality affects the health, comfort, and daily lives of billions of people worldwide. Whether you want to check pollution levels in your hometown, explore conditions before travelling, or compare air quality across different countries, AirQualityIndex.org makes it easy to find the information you need. Explore air quality across 196 countries and 2,000 major cities, with access to a wider network of 25,000+ monitoring locations for more localized information. Discover current Air Quality Index (AQI) readings, major pollutants such as PM2.5, PM10, ozone (O₃), and nitrogen dioxide (NO₂), along with historical trends, forecasts, and practical health guidance where available.

Start exploring: Select a country below to discover its cities and open detailed local air-quality reports. You can also use Air Quality Near Me to explore pollution conditions closer to your location.

Global Real-Time Status · Air Quality by Country · Data & Methodology

Explore Air Quality by Country and City

Browse the countries below. Expand any country to see its major cities. All links are included in the page HTML for accessible navigation and search-engine discovery.

This directory is generated from the existing major-city catalogue. Monitoring-station observations and atmospheric-model estimates may differ. See the data methodology for interpretation and source details.