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)
23
Good
Brookline, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.01 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.20 μg/m³
0
55
155
255
425
605+
24.76 ppb
0
55
71
86
201
201+
0.44 ppb
0
36
76
186
605
1005+
9.02 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Brookline, Massachusetts
Scroll To Air Quality MapLoading...
AQI 25
Good
2.82μg/m³
PM2.5
12.30μg/m³
PM10
26.59ppb
O3
0.55ppb
SO2
11.03ppb
NO2
0.24ppm
CO
AQI 22
Good
4.00μg/m³
PM2.5
18.08μg/m³
PM10
24.32ppb
O3
0.32ppb
SO2
8.94ppb
NO2
0.25ppm
CO
AQI 24
Good
2.99μg/m³
PM2.5
13.30μg/m³
PM10
25.78ppb
O3
0.45ppb
SO2
10.22ppb
NO2
0.24ppm
CO
AQI 23
Good
3.04μg/m³
PM2.5
13.68μg/m³
PM10
25.29ppb
O3
0.38ppb
SO2
9.90ppb
NO2
0.24ppm
CO
AQI 27
Good
3.05μg/m³
PM2.5
11.35μg/m³
PM10
28.60ppb
O3
0.40ppb
SO2
9.26ppb
NO2
0.23ppm
CO
AQI 23
Good
3.04μg/m³
PM2.5
13.65μg/m³
PM10
25.31ppb
O3
0.38ppb
SO2
9.84ppb
NO2
0.24ppm
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 03:00:00 on 2026-02-11.
In the last 24 hours, the best air quality in Brookline, Massachusetts was observed at 01:00:00 on 2026-02-12.
As of now, the AQI in Brookline, Massachusetts is 23, indicating Good conditions.
Brookline, Massachusetts air has the highest levels of O3.
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 3.012 μg/m3.
The PM10 concentration in Brookline, Massachusetts is 12.199 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Brookline, Massachusetts is 0.184 ppm.
Currently, Brookline, Massachusetts has a sulfur dioxide (SO2) concentration of 0.444 ppb.
The current ozone (O3) level in Brookline, Massachusetts at the moment is 24.758 ppm.
Nitrogen dioxide (NO2) level in Brookline, Massachusetts at the moment is 9.02 ppb.
All Rights Reserved © Ambee Inc. 2025