Air Quality Index

Know the air you breathe. Air Quality Index gives you live AQI, pollution forecasts and weather for your exact location and any city in the world, all in one clean, fast app.

🌍 LIVE AIR QUALITY
• Real-time AQI for where you are, on the US EPA or India CPCB scale (picked automatically for your country)
• 6 key pollutants tracked: PM2.5, PM10, O₃, NO₂, SO₂ and CO, with the main pollutant highlighted
• Tap any pollutant to see what it is, where it comes from and how it affects your health
• Clear color-coded levels, from Good to Hazardous, with simple advice for every level

📈 FORECASTS & TRENDS
• Hourly AQI forecast with the best time to go outside
• 3-day air quality outlook
• 24-hour trend chart and 7-day history: see if the air is getting better or worse

❤️ HEALTH ADVICE
• Tips for you and for sensitive groups: children, older adults and people with asthma or heart conditions
• Know when to exercise outdoors, open windows or wear a mask

☁️ WEATHER
• Current temperature, feels like, humidity, wind, visibility and UV index
• Hourly and 7-day forecasts
• Rain in the next hour, minute by minute (where available)
• Sunrise, sunset and daylight

🌋 EARTHQUAKE TRACKER
• Recent earthquakes near you or worldwide, on a list and a map
• Magnitude, depth, distance from you and tsunami flags
• Optional alerts for earthquakes near your location
• Data from the U.S. Geological Survey (USGS)

🗺️ LIVE AQI MAP
• See monitoring stations and air quality around you on an interactive map

⭐ SAVED PLACES & CITY SEARCH
• Search any city worldwide and save your favorite places
• Compare air quality at home, work or your next trip at a glance

📱 HOME SCREEN WIDGETS
• AQI, pollutant and weather widgets in small, medium and large sizes
• Updates automatically in the background

🔔 SMART ALERTS
• Daily air quality summary at the time you choose
• Notifications when the air quality changes level

✨ MORE
• Air quality news
• Beautiful dark and light themes
• Available in 17 languages
• Go Premium for an ad-free experience

⚠️ AQI LEVELS (US EPA)
🟢 0–50 Good: air quality is satisfactory
🟡 51–100 Moderate: acceptable; unusually sensitive people should take care
🟠 101–150 Unhealthy for Sensitive Groups
🔴 151–200 Unhealthy: everyone may begin to feel effects
🟣 201–300 Very Unhealthy: health alert
🟤 301+ Hazardous: emergency conditions

Air quality data: Google Air Quality API. Weather: Google Weather API. Earthquakes: USGS. AQI values are calculated on the scale you choose and are for information only. Earthquake alerts report events after they happen and are not an early-warning system.

Download Air Quality Index and breathe smarter every day.

Recent changes:
• Earthquakes: new tab with recent quakes near you or worldwide, on a list and a map, plus optional alerts
• Now available in 17 languages
• Home screen widgets: 8 styles that update automatically, even when the app is closed
• New app icon and animated splash screen
• Performance improvements and bug fixes