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
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
Newtown, Connecticut
Newtown, Connecticut
Scroll To Air Quality Map
Track live Newtown, Connecticut air quality forecast and history
Newtown Loading...
Newtown, Connecticut air quality map: Real-time AQI near you
Air quality in nearby cities
Brookfield, Connecticut
AQI 22
Good
4.22μg/m³
PM2.5
8.64μg/m³
PM10
23.08ppb
O3
0.66ppb
SO2
4.75ppb
NO2
0.31ppm
CO
Bethel, Connecticut
AQI 22
Good
4.23μg/m³
PM2.5
8.23μg/m³
PM10
23.17ppb
O3
0.68ppb
SO2
4.64ppb
NO2
0.31ppm
CO
Southbury, Connecticut
AQI 27
Good
4.82μg/m³
PM2.5
12.62μg/m³
PM10
23.79ppb
O3
0.55ppb
SO2
4.78ppb
NO2
0.30ppm
CO
Danbury, Connecticut
AQI 22
Good
4.29μg/m³
PM2.5
8.02μg/m³
PM10
23.00ppb
O3
0.69ppb
SO2
4.65ppb
NO2
0.31ppm
CO
Monroe, Connecticut
AQI 27
Good
4.81μg/m³
PM2.5
13.07μg/m³
PM10
23.68ppb
O3
0.46ppb
SO2
5.01ppb
NO2
0.32ppm
CO
Oxford, Connecticut
AQI 27
Good
5.15μg/m³
PM2.5
12.96μg/m³
PM10
24.32ppb
O3
0.53ppb
SO2
5.48ppb
NO2
0.32ppm
CO
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.
Source: Ambee Data Sources
Frequently asked questions
How frequently is the air quality data for Newtown, Connecticut updated?
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?
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?
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?
The real-time air quality index in Newtown, Connecticut is 23, currently categorized as Good.
Which pollutant is found most often in Newtown, Connecticut?
The most common pollutant in Newtown, Connecticut is O3.
What can I do if the air quality in Newtown, Connecticut is poor?
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?
The measured PM2.5 levels in Newtown, Connecticut at present are 4.005 μg/m3.
What are the current PM10 levels at Newtown, Connecticut?
The current PM10 levels in Newtown, Connecticut are 13.585 μg/m3.
What are the current carbon monoxide (CO) levels at Newtown, Connecticut?
The current carbon monoxide (CO) level in Newtown, Connecticut is 0.242 ppm.
What are the current sulfur dioxide (SO2) levels at Newtown, Connecticut?
The current sulfur dioxide (SO2) levels in Newtown, Connecticut are 0.612 ppb.
What are the current ozone (O3) levels at Newtown, Connecticut?
The current ozone (O3) levels at Newtown, Connecticut is 25.33 ppm.
What are the current nitrogen dioxide (NO2) levels at Newtown, Connecticut?
The current nitrogen dioxide (NO2) levels at Newtown, Connecticut is 4.7 ppb.
All Rights Reserved © Ambee Inc. 2025