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)
38
Good
Malden, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.41 μg/m³
0
55
155
255
425
605+
25.98 ppb
0
55
71
86
201
201+
0.48 ppb
0
36
76
186
605
1005+
23.33 ppb
0
54
101
361
1250
2050+
0.42 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Malden, Massachusetts
Malden, Massachusetts
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AQI 38
Good
6.97μg/m³
PM2.5
33.90μg/m³
PM10
24.62ppb
O3
0.48ppb
SO2
25.31ppb
NO2
0.43ppm
CO
AQI 38
Good
7.00μg/m³
PM2.5
35.08μg/m³
PM10
27.11ppb
O3
0.48ppb
SO2
22.18ppb
NO2
0.42ppm
CO
AQI 38
Good
7.28μg/m³
PM2.5
37.47μg/m³
PM10
24.02ppb
O3
0.48ppb
SO2
25.88ppb
NO2
0.43ppm
CO
AQI 33
Good
5.75μg/m³
PM2.5
25.41μg/m³
PM10
24.17ppb
O3
0.48ppb
SO2
25.97ppb
NO2
0.43ppm
CO
AQI 38
Good
6.68μg/m³
PM2.5
35.55μg/m³
PM10
26.72ppb
O3
0.48ppb
SO2
22.82ppb
NO2
0.42ppm
CO
AQI 38
Good
7.30μg/m³
PM2.5
37.09μg/m³
PM10
24.03ppb
O3
0.48ppb
SO2
25.19ppb
NO2
0.43ppm
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 03:00:00 on 2025-12-28.
The best air quality in Malden, Massachusetts was recorded at 11:00:00 on 2025-12-27.
The real-time air quality index in Malden, Massachusetts is 38, currently categorized as Good.
The most common pollutant in Malden, Massachusetts is PM2.5.
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 7.129 μg/m3.
The current PM10 levels in Malden, Massachusetts are 34.41 μg/m3.
The current carbon monoxide (CO) level in Malden, Massachusetts is 0.425 ppm.
The current sulfur dioxide (SO2) levels in Malden, Massachusetts are 0.483 ppb.
The current ozone (O3) levels at Malden, Massachusetts is 25.983 ppm.
The current nitrogen dioxide (NO2) levels at Malden, Massachusetts is 23.331 ppb.
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