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Live air quality index in Barrington, Illinois today

Stay updated with real-time air quality in Barrington, 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)

139

Unhealthy for sensitive groups

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Barrington, Illinois

Last updated: ... (Local time)

Major air pollutants in Barrington, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

51.02 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

174.89 μg/m³

0

55

155

255

425

605+

Ozone (O3)

36.46 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.89 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

5.52 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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Barrington, Illinois

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Barrington, 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 Barrington, Illinois updated?

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


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

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The worst air quality in Barrington, Illinois was recorded at 09:00:00 on 2025-06-05.


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

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The best air quality in Barrington, Illinois was recorded at 10:00:00 on 2025-06-05.


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

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The real-time air quality index in Barrington, Illinois is 139, currently categorized as Unhealthy for Sensitive Groups.


Which pollutant is found most often in Barrington, Illinois?

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The most common pollutant in Barrington, Illinois is PM2.5.


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

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


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

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The measured PM2.5 levels in Barrington, Illinois at present are 51.017 μg/m3.


What are the current PM10 levels at Barrington, Illinois?

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The current PM10 levels in Barrington, Illinois are 174.889 μg/m3.


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

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The current carbon monoxide (CO) level in Barrington, Illinois is 0.328 ppm.


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

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The current sulfur dioxide (SO2) levels in Barrington, Illinois are 0.887 ppb.


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

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The current ozone (O3) levels at Barrington, Illinois is 36.464 ppm.


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

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The current nitrogen dioxide (NO2) levels at Barrington, Illinois is 5.519 ppb.


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