AQI 0-50 is good, 51-100 is moderate. Above 100, air quality starts affecting sensitive groups, and above 200 is unhealthy for everyone.

What causes poor air quality?

Vehicle emissions, industrial pollution, wildfires, construction dust, and weather inversions can all contribute to poor air quality.

Air Quality Calculator

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What is a good AQI?: AQI 0-50 is good, 51-100 is moderate. Above 100, air quality starts affecting sensitive groups, and above 200 is unhealthy for everyone.
What causes poor air quality?: Vehicle emissions, industrial pollution, wildfires, construction dust, and weather inversions can all contribute to poor air quality.