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

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.43 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.70 μg/m³
0
55
155
255
425
605+
25.14 ppb
0
55
71
86
201
201+
0.85 ppb
0
36
76
186
605
1005+
4.83 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Malden, Massachusetts
Malden, Massachusetts
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AQI 23
Good
3.38μg/m³
PM2.5
18.35μg/m³
PM10
24.77ppb
O3
0.79ppb
SO2
5.36ppb
NO2
0.14ppm
CO
AQI 23
Good
3.41μg/m³
PM2.5
16.63μg/m³
PM10
25.43ppb
O3
0.84ppb
SO2
4.23ppb
NO2
0.15ppm
CO
AQI 22
Good
3.51μg/m³
PM2.5
19.19μg/m³
PM10
22.01ppb
O3
0.78ppb
SO2
6.52ppb
NO2
0.15ppm
CO
AQI 24
Good
3.32μg/m³
PM2.5
18.86μg/m³
PM10
26.02ppb
O3
0.80ppb
SO2
5.95ppb
NO2
0.15ppm
CO
AQI 24
Good
3.31μg/m³
PM2.5
14.95μg/m³
PM10
26.28ppb
O3
0.76ppb
SO2
4.19ppb
NO2
0.14ppm
CO
AQI 22
Good
3.58μg/m³
PM2.5
19.67μg/m³
PM10
21.40ppb
O3
0.88ppb
SO2
6.57ppb
NO2
0.15ppm
CO
Air quality measurements for Massachusetts, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Malden, Massachusetts is updated on an hourly basis.
The worst air quality in Malden, Massachusetts was recorded at 02:00:00 on 2026-11-12.
The best air quality in Malden, Massachusetts was recorded at 05:00:00 on 2026-11-12.
The real-time air quality index in Malden, Massachusetts is 23, currently categorized as Good.
The most common pollutant in Malden, Massachusetts is O3.
If the air quality in Malden, Massachusetts is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Malden, Massachusetts at present are 3.426 μg/m3.
The current PM10 levels in Malden, Massachusetts are 17.705 μg/m3.
The current carbon monoxide (CO) level in Malden, Massachusetts is 0.147 ppm.
The current sulfur dioxide (SO2) levels in Malden, Massachusetts are 0.847 ppb.
The current ozone (O3) levels at Malden, Massachusetts is 25.141 ppm.
The current nitrogen dioxide (NO2) levels at Malden, Massachusetts is 4.827 ppb.
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