World Air Quality Index

World Air Quality Index: Real-Time Air Pollution Data

Track air quality in cities worldwide with real-time AQI data, historical trends, and health recommendations to help you make informed decisions about your surroundings.

What is World Air Quality Index?

World Air Quality Index (WAQI) is an open environmental data platform that tracks and forecasts air quality in cities across the globe. It was created in 2008 as a non-profit project to raise awareness about air pollution and provide easily accessible air quality information to the public.

WAQI collects real-time AQI (air quality index) data from thousands of monitoring stations around the world. This data is processed and aggregated to provide current and historical AQI levels for over 10,000 cities globally. The platform uses color-coded indexes and health recommendations based on guidance from major health organizations to indicate whether the air quality is good, moderate, unhealthy, or hazardous at any given time.

In addition to real-time monitoring, WAQI provides 3-day air quality forecasts powered by atmospheric modeling. Users can view air quality trends over time as well as access historical data dating back 5+ years for many locations. An interactive world map makes it easy to compare AQI levels in different parts of the world.

The platform is available on both web and mobile, offering air quality data, notifications and insights to both individuals checking local conditions as well as researchers and policy makers analyzing trends. WAQI aims to drive awareness and understanding about air pollution while advocating for cleaner air policies worldwide.

World Air Quality Index Features

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