Stay updated with real-time air quality in Salem, 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)
27
Good
Salem, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.17 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.40 μg/m³
0
55
155
255
425
605+
24.60 ppb
0
55
71
86
201
201+
0.58 ppb
0
36
76
186
605
1005+
7.25 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Salem, Massachusetts
Salem, Massachusetts
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AQI 27
Good
4.74μg/m³
PM2.5
17.58μg/m³
PM10
20.71ppb
O3
0.46ppb
SO2
8.16ppb
NO2
0.29ppm
CO
AQI 27
Good
5.41μg/m³
PM2.5
23.12μg/m³
PM10
22.51ppb
O3
0.50ppb
SO2
8.19ppb
NO2
0.28ppm
CO
AQI 27
Good
4.82μg/m³
PM2.5
17.85μg/m³
PM10
20.88ppb
O3
0.46ppb
SO2
8.33ppb
NO2
0.29ppm
CO
AQI 27
Good
4.73μg/m³
PM2.5
17.32μg/m³
PM10
20.71ppb
O3
0.47ppb
SO2
8.10ppb
NO2
0.29ppm
CO
AQI 27
Good
4.77μg/m³
PM2.5
17.70μg/m³
PM10
20.77ppb
O3
0.46ppb
SO2
8.22ppb
NO2
0.29ppm
CO
AQI 27
Good
4.51μg/m³
PM2.5
17.55μg/m³
PM10
20.06ppb
O3
0.47ppb
SO2
7.80ppb
NO2
0.29ppm
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 Salem, Massachusetts are available every hour.
Salem, Massachusetts experienced its worst air quality at 09:00:00, 2025-12-12.
The best air quality in Salem, Massachusetts was observed at 02:00:00 on 2025-12-13.
The air quality in Salem, Massachusetts right now is Good, with an AQI of 27.
In Salem, Massachusetts, PM2.5 is the most frequently found pollutant.
When air quality in Salem, Massachusetts is compromised, staying indoors and wearing a mask can reduce health risks.
Salem, Massachusetts currently has a PM2.5 concentration of 5.171 μg/m3.
Salem, Massachusetts currently has a PM10 concentration of 18.403 μg/m3.
The current carbon monoxide (CO) level in Salem, Massachusetts is 0.296 ppm.
The current sulfur dioxide (SO2) concentration in Salem, Massachusetts is 0.584 ppb.
Salem, Massachusetts currently has an ozone (O3) concentration of 24.6 ppm.
The current level of nitrogen dioxide (NO2) in Salem, Massachusetts is 7.25 ppb.
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