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Live air quality index in Newtown, Connecticut today

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

23

Good

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Newtown, Connecticut

Last updated: ... (Local time)

Major air pollutants in Newtown, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

4.00 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

13.59 μg/m³

0

55

155

255

425

605+

Ozone (O3)

25.33 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.61 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

4.70 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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Newtown, Connecticut

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Newtown, Connecticut air quality map: Real-time AQI near you




How accurate is Connecticut, USA air quality data?

Air quality measurements for Connecticut, 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 Newtown, Connecticut updated?

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Air quality data for Newtown, Connecticut is updated on an hourly basis.


When did Newtown, Connecticut experience the worst air quality in the last 24 hours?

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The worst air quality in Newtown, Connecticut was recorded at 11:00:00 on 2025-07-13.


When did Newtown, Connecticut have its best air quality in the last 24 hours?

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The best air quality in Newtown, Connecticut was recorded at 12:00:00 on 2025-07-14.


What is the real-time air quality index for Newtown, Connecticut?

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The real-time air quality index in Newtown, Connecticut is 23, currently categorized as Good.


Which pollutant is found most often in Newtown, Connecticut?

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The most common pollutant in Newtown, Connecticut is O3.


What can I do if the air quality in Newtown, Connecticut is poor?

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


What are the current PM2.5 levels in Newtown, Connecticut?

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The measured PM2.5 levels in Newtown, Connecticut at present are 4.005 μg/m3.


What are the current PM10 levels at Newtown, Connecticut?

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The current PM10 levels in Newtown, Connecticut are 13.585 μg/m3.


What are the current carbon monoxide (CO) levels at Newtown, Connecticut?

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The current carbon monoxide (CO) level in Newtown, Connecticut is 0.242 ppm.


What are the current sulfur dioxide (SO2) levels at Newtown, Connecticut?

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The current sulfur dioxide (SO2) levels in Newtown, Connecticut are 0.612 ppb.


What are the current ozone (O3) levels at Newtown, Connecticut?

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The current ozone (O3) levels at Newtown, Connecticut is 25.33 ppm.


What are the current nitrogen dioxide (NO2) levels at Newtown, Connecticut?

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The current nitrogen dioxide (NO2) levels at Newtown, Connecticut is 4.7 ppb.


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