AQIRadar turns thousands of monitoring stations into one clear number, a colour, and a plan — live AQI, forecasts and health guidance for any city on earth.
10K+
Monitoring stations
140+
Countries covered
8-day
Pollutant forecast
120K+
People breathing easier
Trusted data from the networks that matter
Pan the globe and watch readings update in real time — pollutant layers, heat overlays, and station-level detail wherever you look.
Build a watchlist of the places that matter — home, family, the office — each with its own gauge, pollutant breakdown and forecast.
Official networks in, one consistent index out — with the health advice that goes with it.
From a single street corner to the whole planet — every station, every pollutant, refreshed hour by hour.
PM2.5
11.6
Good
AQI
42
Good
O₃
38
Good
NO₂
16
Good
Do air purifiers really work, or are they hype? Here's what peer-reviewed studies say about HEPA filters, PM2.5 reduction, allergies, heart health, and what these devices can't do.
Learn how the Air Quality Index (AQI) affects heart health, what the research says about air pollution and cardiovascular disease, and practical steps to protect your heart.
AQI can change dramatically from one day to the next—and sometimes within just a few hours. Weather, traffic, wind, temperature inversions, sunlight, rain, wildfires, dust, and atmospheric chemistry all influence how pollutants build up, disperse, or transform. In this guide, discover the science behind daily AQI changes, which pollutants drive them, and how to understand what today’s AQI really means for you.
“AQIRadar is the first thing I check every morning. One look and I know whether the kids can play outside.”
Aanya Mehra
Parent · New Delhi
The short answers on where our readings come from, how often they move, and what the numbers actually mean for your day.
We aggregate readings from official government and reference-grade networks — CPCB, WAQI, OpenAQ, the US EPA — and pair them with Open-Meteo forecasts, all normalised onto one clear AQI scale.
Live readings refresh hourly from the monitoring networks, and forecasts extend up to eight days ahead so you can plan your week around the air.
AQIRadar shows a clear six-band scale — Good, Moderate, Unhealthy for Sensitive, Unhealthy, Very Unhealthy and Hazardous — each with a colour and plain-language health guidance.
Yes — checking live air quality, tracking your cities, and reading forecasts is free to start. No account required to explore the map.
Build a watchlist of every place that matters — home, family, the office — each with its own gauge, pollutant breakdown and forecast.
Real-time air quality insights. Healthier choices. A better tomorrow — free, and no account needed.
