Stay updated with real-time air quality in Shrewsbury, 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)
33
Good
Shrewsbury, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.10 μg/m³
0
55
155
255
425
605+
36.43 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
3.56 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Shrewsbury, Massachusetts
Shrewsbury, Massachusetts
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AQI 35
Good
2.15μg/m³
PM2.5
6.69μg/m³
PM10
37.86ppb
O3
0.38ppb
SO2
2.12ppb
NO2
0.18ppm
CO
AQI 37
Good
2.50μg/m³
PM2.5
8.01μg/m³
PM10
40.44ppb
O3
0.20ppb
SO2
2.40ppb
NO2
0.20ppm
CO
AQI 35
Good
2.14μg/m³
PM2.5
10.33μg/m³
PM10
37.60ppb
O3
0.41ppb
SO2
2.06ppb
NO2
0.17ppm
CO
AQI 36
Good
2.03μg/m³
PM2.5
6.44μg/m³
PM10
39.20ppb
O3
0.36ppb
SO2
2.11ppb
NO2
0.19ppm
CO
AQI 37
Good
2.42μg/m³
PM2.5
8.09μg/m³
PM10
40.32ppb
O3
0.24ppb
SO2
2.35ppb
NO2
0.19ppm
CO
AQI 37
Good
2.43μg/m³
PM2.5
8.79μg/m³
PM10
40.21ppb
O3
0.26ppb
SO2
2.19ppb
NO2
0.19ppm
CO
Air quality measurements for Massachusetts, 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
Air quality data for Shrewsbury, Massachusetts is updated on an hourly basis.
The worst air quality in Shrewsbury, Massachusetts was recorded at 03:00:00 on 2026-06-15.
The best air quality in Shrewsbury, Massachusetts was recorded at 01:00:00 on 2026-06-15.
The real-time air quality index in Shrewsbury, Massachusetts is 37, currently categorized as Good.
The most common pollutant in Shrewsbury, Massachusetts is O3.
If the air quality in Shrewsbury, Massachusetts is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Shrewsbury, Massachusetts at present are 2.419 μg/m3.
The current PM10 levels in Shrewsbury, Massachusetts are 8.107 μg/m3.
The current carbon monoxide (CO) level in Shrewsbury, Massachusetts is 0.193 ppm.
The current sulfur dioxide (SO2) levels in Shrewsbury, Massachusetts are 0.25 ppb.
The current ozone (O3) levels at Shrewsbury, Massachusetts is 40.403 ppm.
The current nitrogen dioxide (NO2) levels at Shrewsbury, Massachusetts is 2.386 ppb.
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