Stay informed and breathe better with real-time Air Quality Index (AQI) and weather data from around the world. Track air pollution, monitor key pollutants, and view accurate weather updates to make smarter health and travel decisions.
Track air pollution, monitor key pollutants and view accurate weather updates for any city in the world.
Real-time AQI and pollution levels by city, including key pollutants: PM2.5, PM10, CO, NO₂, O₃, SO₂, and more.
Get current weather conditions including temperature, humidity, wind, sunrise & sunset, and weekly forecasts.
Explore AQI levels for nearby cities on an interactive map.
Save your frequently checked locations for quick access to air quality and weather data.
Get the latest news and updates on pollution and environmental health.
Understand pollution levels with a simple, color-coded chart—from Good to Hazardous—with health guidance.
Browse AQI by country and city with flags for easier recognition of your location.
See recent earthquakes near you or worldwide, on a list and a map, with optional alerts.
Make smarter health and travel decisions with clear, colour-coded data that updates in real time.
Open the app and instantly see the air quality where you are, on the US EPA scale, with a clear Good-to-Hazardous gauge.
No need to switch apps. Check the weather alongside the air you breathe, around the clock.
The new Earthquakes tab shows recent quakes near you or across the world, on a list and a map.
Personal advice for today's air, so you know when to enjoy the outdoors and when to take care.
Save your frequently checked locations and compare them at a glance, with detailed AQI for every city you visit.
Explore AQI levels for nearby cities on an interactive map and spot cleaner air around you.
The app uses a simple, colour-coded chart—from Good to Hazardous—with health guidance for each level.
Air quality is satisfactory.
Acceptable, minor risks for sensitive people.
Sensitive people should limit long outdoor exertion.
Everyone may begin to feel effects.
Health warnings issued.
Emergency conditions.
Levels follow the US EPA AQI scale used in the app.
Download now to track air quality and weather, wherever you are.
Real screens from Air Quality Index on iPhone and Android. Tap any screenshot to view it full size.
The latest update brings new features, a new look and a faster app.
See recent quakes near you or worldwide, on a list and a map, with optional alerts.
Use the app in your own language, with support for 17 languages.
A brand-new app icon and an animated splash screen, plus performance improvements and bug fixes.
Minute-by-minute precipitation forecast for the next hour.
Round-the-clock weather details alongside your air quality.
Simple guides on AQI, pollutants and protecting your family on high-pollution days.
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Read article →Yes. Air Quality Index is free to download on Android and iPhone. If you prefer an ad-free experience, an optional in-app purchase removes advertisements.
The Air Quality Index (AQI) is a number from 0 to 500 that tells you how clean or polluted the air is. The app uses the colour-coded US EPA scale, from Green (0–50, Good) to Brown (301+, Hazardous). Read our AQI guide.
Real-time levels of the key pollutants PM2.5, PM10, CO, NO₂, O₃, SO₂ and more, for cities around the world.
Yes. Search any city worldwide, browse by country and city with flags, explore the live AQI map of nearby stations, and save your favourite places for quick access.
Yes. The Earthquakes tab shows recent earthquakes near you or worldwide, on a list and a map, with optional alerts.
The app is available in 17 languages.
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