Stay updated with real-time air quality in Holbrook, 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)
31
Good
Holbrook, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.49 μg/m³
0
55
155
255
425
605+
32.90 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
3.11 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Holbrook, Massachusetts
Holbrook, Massachusetts
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AQI 29
Good
2.58μg/m³
PM2.5
11.14μg/m³
PM10
31.33ppb
O3
0.47ppb
SO2
2.87ppb
NO2
0.20ppm
CO
AQI 32
Good
2.79μg/m³
PM2.5
11.96μg/m³
PM10
34.85ppb
O3
0.58ppb
SO2
2.18ppb
NO2
0.19ppm
CO
AQI 29
Good
2.36μg/m³
PM2.5
9.88μg/m³
PM10
30.88ppb
O3
0.53ppb
SO2
2.45ppb
NO2
0.20ppm
CO
AQI 31
Good
2.69μg/m³
PM2.5
11.51μg/m³
PM10
33.42ppb
O3
0.54ppb
SO2
2.40ppb
NO2
0.19ppm
CO
AQI 30
Good
2.53μg/m³
PM2.5
10.89μg/m³
PM10
32.23ppb
O3
0.55ppb
SO2
2.83ppb
NO2
0.19ppm
CO
AQI 30
Good
2.57μg/m³
PM2.5
10.96μg/m³
PM10
32.10ppb
O3
0.52ppb
SO2
2.55ppb
NO2
0.19ppm
CO
Air quality data and pollutant measurements for Massachusetts, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Holbrook, Massachusetts is updated every hour.
The worst air quality in Holbrook, Massachusetts in the last 24 hours was observed at 08:00:00 on 2026-10-05.
In the last 24 hrs, the best air quality in Holbrook, Massachusetts was observed at 03:00:00 on 2026-10-05.
The current air quality in Holbrook, Massachusetts is 30, categorized as Good based on real-time data.
The most common pollutant in Holbrook, Massachusetts is O3.
If the air quality in Holbrook, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Holbrook, Massachusetts is 2.612 μg/m3.
The current PM10 concentration at Holbrook, Massachusetts is 11.177 μg/m3.
The current carbon monoxide (CO) concentration at Holbrook, Massachusetts is 0.193 ppm.
The current sulfur dioxide (SO2) concentration at Holbrook, Massachusetts is 0.52 ppb.
The current ozone (O3) concentration at Holbrook, Massachusetts is 32.447 ppm.
The current nitrogen dioxide (NO2) concentration at Holbrook, Massachusetts is 2.55 ppb.
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