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Real-time air quality index in Danbury, Connecticut today

Stay updated with real-time air quality in Danbury, Connecticut 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)

66

Moderate

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Danbury, Connecticut

Last updated: ... (Local time)

Major air pollutants in Danbury, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

17.10 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

27.14 μg/m³

0

55

155

255

425

605+

Ozone (O3)

48.92 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.45 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

7.46 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.36 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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Danbury, Connecticut

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How accurate is Connecticut, USA air quality data?

Air quality and pollutant data for Connecticut, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.


Frequently asked questions

How often is air quality information updated for Danbury, Connecticut?

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The air quality information for Danbury, Connecticut is updated every hour for accuracy.


What time in the last 24 hours was the air quality in Danbury, Connecticut at its worst?

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In the past 24 hours, the air quality in Danbury, Connecticut was at its worst at 11:00:00 on 2025-06-05.


When did Danbury, Connecticut experience the best air quality in the last 24 hours?

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In the last 24 hours, the best air quality in Danbury, Connecticut was observed at 02:00:00 on 2025-06-06.


What is the AQI in Danbury, Connecticut right now?

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As of now, the AQI in Danbury, Connecticut is 66, indicating Moderate conditions.


What is the most common type of pollution in Danbury, Connecticut?

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Danbury, Connecticut air has the highest levels of PM2.5.


What should I do in case of poor air quality in Danbury, Connecticut?

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Poor air quality in Danbury, Connecticut means it's advisable to stay indoors and wear a mask for your protection.


What is the PM2.5 level in Danbury, Connecticut at the moment?

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PM2.5 levels in Danbury, Connecticut are currently 17.097 μg/m3.


What is the PM10 level in Danbury, Connecticut at the moment?

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The PM10 concentration in Danbury, Connecticut is 27.143 μg/m3 at the moment.


What is the carbon monoxide (CO) level in Danbury, Connecticut at the moment?

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The current carbon monoxide (CO) concentration in Danbury, Connecticut is 0.358 ppm.


What is the sulfur dioxide (SO2) level in Danbury, Connecticut at the moment?

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Currently, Danbury, Connecticut has a sulfur dioxide (SO2) concentration of 0.447 ppb.


What is the ozone (O3) level in Danbury, Connecticut at the moment?

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The current ozone (O3) level in Danbury, Connecticut at the moment is 48.918 ppm.


What is the nitrogen dioxide (NO2) level in Danbury, Connecticut at the moment?

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Nitrogen dioxide (NO2) level in Danbury, Connecticut at the moment is 7.463 ppb.


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