Air Quality (AQI)
The Air Quality tool reports the Air Quality Index (AQI) for your city, telling you how clean or polluted the air is and offering health guidance for sensitive groups.
Reading the AQI
The AQI condenses several pollutants - especially fine particulates (PM2.5 and PM10), ozone, nitrogen dioxide, and others - into a single number and colour band. Lower is better: good (green) through moderate, unhealthy for sensitive groups, unhealthy, and hazardous. The tool shows the category and what it means for your day.
Why it matters
Poor air quality can trigger breathing problems, especially for children, older adults, and people with asthma or heart conditions. On high-AQI days it is sensible to limit outdoor exertion and keep windows closed. Check it alongside Live Weather when planning outdoor activity.
Frequently Asked Questions
What is a good AQI value?
Generally an AQI of 0-50 is good and 51-100 is moderate. Values above 100 progressively affect sensitive groups and then everyone.
Which pollutants does the AQI include?
It combines pollutants such as PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide, and carbon monoxide into one index.
Who is most affected by poor air quality?
Children, older adults, and people with asthma, allergies, or heart and lung conditions are most sensitive to pollution.
What should I do on a high-AQI day?
Limit strenuous outdoor activity, keep windows closed, and consider a mask or air purifier if levels are unhealthy.
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