Stay updated with real-time air quality in Brookline, 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)
38
Good
Brookline, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.49 μg/m³
0
55
155
255
425
605+
21.27 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
5.98 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Brookline, Massachusetts
Brookline, Massachusetts
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AQI 44
Good
7.52μg/m³
PM2.5
31.31μg/m³
PM10
20.72ppb
O3
0.45ppb
SO2
5.84ppb
NO2
0.23ppm
CO
AQI 38
Good
6.83μg/m³
PM2.5
29.44μg/m³
PM10
22.26ppb
O3
0.45ppb
SO2
6.28ppb
NO2
0.25ppm
CO
AQI 38
Good
7.25μg/m³
PM2.5
29.33μg/m³
PM10
21.18ppb
O3
0.45ppb
SO2
6.06ppb
NO2
0.23ppm
CO
AQI 38
Good
7.10μg/m³
PM2.5
27.63μg/m³
PM10
21.47ppb
O3
0.45ppb
SO2
6.20ppb
NO2
0.23ppm
CO
AQI 38
Good
6.60μg/m³
PM2.5
13.45μg/m³
PM10
25.15ppb
O3
0.39ppb
SO2
5.50ppb
NO2
0.22ppm
CO
AQI 38
Good
7.10μg/m³
PM2.5
27.85μg/m³
PM10
21.44ppb
O3
0.45ppb
SO2
6.21ppb
NO2
0.23ppm
CO
Air quality and pollutant data for Massachusetts, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Brookline, Massachusetts is updated every hour for accuracy.
In the past 24 hours, the air quality in Brookline, Massachusetts was at its worst at 07:00:00 on 2026-07-12.
In the last 24 hours, the best air quality in Brookline, Massachusetts was observed at 10:00:00 on 2026-07-12.
As of now, the AQI in Brookline, Massachusetts is 38, indicating Good conditions.
Brookline, Massachusetts air has the highest levels of PM2.5.
Poor air quality in Brookline, Massachusetts means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Brookline, Massachusetts are currently 7.249 μg/m3.
The PM10 concentration in Brookline, Massachusetts is 27.487 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Brookline, Massachusetts is 0.217 ppm.
Currently, Brookline, Massachusetts has a sulfur dioxide (SO2) concentration of 0.447 ppb.
The current ozone (O3) level in Brookline, Massachusetts at the moment is 21.274 ppm.
Nitrogen dioxide (NO2) level in Brookline, Massachusetts at the moment is 5.981 ppb.
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