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Live air quality index in Downers Grove, Illinois today

Stay updated with real-time air quality in Downers Grove, 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)

81

Moderate

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Downers Grove, Illinois

Last updated: ... (Local time)

Major air pollutants in Downers Grove, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

24.84 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

112.87 μg/m³

0

55

155

255

425

605+

Ozone (O3)

31.76 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.27 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

4.18 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.27 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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Downers Grove, Illinois

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Downers Grove, Illinois air quality map: Real-time AQI near you




How accurate is Illinois, USA air quality data?

Air quality measurements for Illinois, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.


Frequently asked questions

How frequently is the air quality data for Downers Grove, Illinois updated?

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Air quality data for Downers Grove, Illinois is updated on an hourly basis.


When did Downers Grove, Illinois experience the worst air quality in the last 24 hours?

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The worst air quality in Downers Grove, Illinois was recorded at 11:00:00 on 2025-06-06.


When did Downers Grove, Illinois have its best air quality in the last 24 hours?

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The best air quality in Downers Grove, Illinois was recorded at 10:00:00 on 2025-06-07.


What is the real-time air quality index for Downers Grove, Illinois?

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The real-time air quality index in Downers Grove, Illinois is 81, currently categorized as Moderate.


Which pollutant is found most often in Downers Grove, Illinois?

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The most common pollutant in Downers Grove, Illinois is PM2.5.


What can I do if the air quality in Downers Grove, Illinois is poor?

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If the air quality in Downers Grove, Illinois is poor, limit outdoor activities and use a mask to safeguard your health.


What are the current PM2.5 levels in Downers Grove, Illinois?

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The measured PM2.5 levels in Downers Grove, Illinois at present are 24.835 μg/m3.


What are the current PM10 levels at Downers Grove, Illinois?

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The current PM10 levels in Downers Grove, Illinois are 112.874 μg/m3.


What are the current carbon monoxide (CO) levels at Downers Grove, Illinois?

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The current carbon monoxide (CO) level in Downers Grove, Illinois is 0.272 ppm.


What are the current sulfur dioxide (SO2) levels at Downers Grove, Illinois?

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The current sulfur dioxide (SO2) levels in Downers Grove, Illinois are 0.268 ppb.


What are the current ozone (O3) levels at Downers Grove, Illinois?

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The current ozone (O3) levels at Downers Grove, Illinois is 31.757 ppm.


What are the current nitrogen dioxide (NO2) levels at Downers Grove, Illinois?

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The current nitrogen dioxide (NO2) levels at Downers Grove, Illinois is 4.183 ppb.


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