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)
37
Good
Salem, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.83 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.50 μg/m³
0
55
155
255
425
605+
40.24 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
5.77 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Salem, Massachusetts
Salem, Massachusetts
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AQI 38
Good
4.71μg/m³
PM2.5
18.13μg/m³
PM10
40.52ppb
O3
0.51ppb
SO2
5.87ppb
NO2
0.21ppm
CO
AQI 40
Good
4.03μg/m³
PM2.5
14.83μg/m³
PM10
43.31ppb
O3
0.50ppb
SO2
5.17ppb
NO2
0.20ppm
CO
AQI 37
Good
4.68μg/m³
PM2.5
17.93μg/m³
PM10
40.35ppb
O3
0.51ppb
SO2
6.48ppb
NO2
0.21ppm
CO
AQI 38
Good
4.73μg/m³
PM2.5
18.07μg/m³
PM10
40.60ppb
O3
0.52ppb
SO2
5.63ppb
NO2
0.21ppm
CO
AQI 37
Good
4.70μg/m³
PM2.5
18.07μg/m³
PM10
40.46ppb
O3
0.51ppb
SO2
6.11ppb
NO2
0.21ppm
CO
AQI 38
Good
4.76μg/m³
PM2.5
19.05μg/m³
PM10
40.86ppb
O3
0.52ppb
SO2
4.54ppb
NO2
0.21ppm
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 01:00:00, 2026-05-14.
The best air quality in Salem, Massachusetts was observed at 02:00:00 on 2026-05-13.
The air quality in Salem, Massachusetts right now is Good, with an AQI of 37.
In Salem, Massachusetts, O3 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 4.832 μg/m3.
Salem, Massachusetts currently has a PM10 concentration of 18.5 μg/m3.
The current carbon monoxide (CO) level in Salem, Massachusetts is 0.203 ppm.
The current sulfur dioxide (SO2) concentration in Salem, Massachusetts is 0.512 ppb.
Salem, Massachusetts currently has an ozone (O3) concentration of 40.242 ppm.
The current level of nitrogen dioxide (NO2) in Salem, Massachusetts is 5.77 ppb.
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