Stay updated with real-time air quality in Spencer, Massachusetts 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)
44
Good
Spencer, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.99 μg/m³
0
55
155
255
425
605+
47.77 ppb
0
55
71
86
201
201+
0.27 ppb
0
36
76
186
605
1005+
5.12 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Spencer, Massachusetts
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AQI 42
Good
3.53μg/m³
PM2.5
12.54μg/m³
PM10
45.04ppb
O3
0.23ppb
SO2
2.08ppb
NO2
0.20ppm
CO
AQI 43
Good
4.31μg/m³
PM2.5
9.91μg/m³
PM10
46.39ppb
O3
0.27ppb
SO2
2.48ppb
NO2
0.20ppm
CO
AQI 42
Good
3.96μg/m³
PM2.5
11.39μg/m³
PM10
45.07ppb
O3
0.18ppb
SO2
1.69ppb
NO2
0.20ppm
CO
AQI 42
Good
4.39μg/m³
PM2.5
10.03μg/m³
PM10
45.08ppb
O3
0.10ppb
SO2
1.02ppb
NO2
0.20ppm
CO
AQI 42
Good
3.83μg/m³
PM2.5
11.76μg/m³
PM10
45.08ppb
O3
0.20ppb
SO2
1.82ppb
NO2
0.20ppm
CO
AQI 43
Good
4.32μg/m³
PM2.5
9.71μg/m³
PM10
46.32ppb
O3
0.25ppb
SO2
2.71ppb
NO2
0.21ppm
CO
The air quality data for Massachusetts, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Spencer, Massachusetts are available every hour.
Spencer, Massachusetts experienced its worst air quality at 09:00:00, 2026-03-29.
The best air quality in Spencer, Massachusetts was observed at 03:00:00 on 2026-03-29.
The air quality in Spencer, Massachusetts right now is Good, with an AQI of 44.
In Spencer, Massachusetts, O3 is the most frequently found pollutant.
When air quality in Spencer, Massachusetts is compromised, staying indoors and wearing a mask can reduce health risks.
Spencer, Massachusetts currently has a PM2.5 concentration of 3.159 μg/m3.
Spencer, Massachusetts currently has a PM10 concentration of 12.994 μg/m3.
The current carbon monoxide (CO) level in Spencer, Massachusetts is 0.21 ppm.
The current sulfur dioxide (SO2) concentration in Spencer, Massachusetts is 0.271 ppb.
Spencer, Massachusetts currently has an ozone (O3) concentration of 47.769 ppm.
The current level of nitrogen dioxide (NO2) in Spencer, Massachusetts is 5.121 ppb.
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