Illinois Air Quality Index (AQI) | Air Pollution
Real-time PM2.5, PM10 air pollution level in United States
Last Updated: 7 minutes ago (Local Time)


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Air Quality Solutions For Illinois
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Illinois's AQI Data Analytics Solutions
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Your area’s real-time data with detailed parameters.
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Air Quality FAQs
at Illinois
Frequently Asked Questions About Air Quality
What is the current AQI level in Illinois?
The current real-time AQI level in Illinois is 39 (Good). This was last updated 7 minutes ago (Local Time).
When was the best AQI level in Illinois in the last 24 hours?
The best AQI level was 21 (Good) at 5:09 PM, Aug 26, 2025 (Local Time) during the last 24 hours.
When was the worst AQI level in Illinois in the last 24 hours?
The worst AQI level was 40 (Good) at 6:09 AM (Local Time) during the last 24 hours.
What is the current trend of AQI levels in Illinois during last 24 hours?
The AQI levels in Illinois have been fluctuating throughout the last 24 hours. The levels have increased by highest 40 at 6:09 AM (Local Time), lowest 21 at 5:09 PM, Aug 26, 2025 (Local Time).
What actions are recommended as per the current AQI level in Illinois?
The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.
Recent AQI Blogs
Read the latest news
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