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Current air quality index in Hoffman Estates, Illinois today

Stay updated with real-time air quality in Hoffman Estates, Illinois featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

137

Unhealthy for sensitive groups

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Hoffman Estates, Illinois

Last updated: ... (Local time)

Major air pollutants in Hoffman Estates, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

50.12 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

202.26 μg/m³

0

55

155

255

425

605+

Ozone (O3)

35.75 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.97 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

5.38 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.33 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

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Hoffman Estates, Illinois

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Real-time air quality map: Monitor AQI near Hoffman Estates, Illinois




How accurate is Illinois, USA air quality data?

The air quality data for Illinois, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.


Frequently asked questions

How frequently does the air quality data for Hoffman Estates, Illinois get updated?

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Air quality updates for Hoffman Estates, Illinois are available every hour.


What time in the past 24 hours saw the poorest air quality in Hoffman Estates, Illinois?

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Hoffman Estates, Illinois experienced its worst air quality at 09:00:00, 2025-06-05.


When was air quality in Hoffman Estates, Illinois the best over the past 24 hours?

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The best air quality in Hoffman Estates, Illinois was observed at 10:00:00 on 2025-06-05.


What is the air quality in Hoffman Estates, Illinois right now?

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The air quality in Hoffman Estates, Illinois right now is Unhealthy for Sensitive Groups, with an AQI of 137.


What pollutant is most frequently found in Hoffman Estates, Illinois?

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In Hoffman Estates, Illinois, PM2.5 is the most frequently found pollutant.


What can I do if the air quality in Hoffman Estates, Illinois is poor?

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When air quality in Hoffman Estates, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.


What is the PM2.5 concentration in Hoffman Estates, Illinois right now?

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Hoffman Estates, Illinois currently has a PM2.5 concentration of 50.117 μg/m3.


What is the current level of PM10 in Hoffman Estates, Illinois?

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Hoffman Estates, Illinois currently has a PM10 concentration of 202.26 μg/m3.


What is the current level of carbon monoxide (CO) in Hoffman Estates, Illinois?

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The current carbon monoxide (CO) level in Hoffman Estates, Illinois is 0.327 ppm.


What is the current level of sulfur dioxide (SO2) in Hoffman Estates, Illinois?

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The current sulfur dioxide (SO2) concentration in Hoffman Estates, Illinois is 0.973 ppb.


What is the current level of ozone (O3) in Hoffman Estates, Illinois?

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Hoffman Estates, Illinois currently has an ozone (O3) concentration of 35.751 ppm.


What is the current level of nitrogen dioxide (NO2) in Hoffman Estates, Illinois?

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The current level of nitrogen dioxide (NO2) in Hoffman Estates, Illinois is 5.382 ppb.


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