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)
26
Good
Malden, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.79 μg/m³
0
55
155
255
425
605+
27.57 ppb
0
55
71
86
201
201+
0.80 ppb
0
36
76
186
605
1005+
2.32 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Malden, Massachusetts
Malden, Massachusetts
Scroll To Air Quality MapLoading...
AQI 25
Good
4.17μg/m³
PM2.5
17.36μg/m³
PM10
27.16ppb
O3
0.74ppb
SO2
3.01ppb
NO2
0.21ppm
CO
AQI 26
Good
4.10μg/m³
PM2.5
16.01μg/m³
PM10
27.84ppb
O3
0.80ppb
SO2
2.10ppb
NO2
0.20ppm
CO
AQI 25
Good
4.13μg/m³
PM2.5
17.44μg/m³
PM10
26.65ppb
O3
0.69ppb
SO2
2.80ppb
NO2
0.20ppm
CO
AQI 25
Good
4.12μg/m³
PM2.5
17.89μg/m³
PM10
26.98ppb
O3
0.75ppb
SO2
2.96ppb
NO2
0.20ppm
CO
AQI 26
Good
4.04μg/m³
PM2.5
15.16μg/m³
PM10
27.77ppb
O3
0.73ppb
SO2
2.59ppb
NO2
0.20ppm
CO
AQI 25
Good
4.04μg/m³
PM2.5
17.04μg/m³
PM10
26.51ppb
O3
0.79ppb
SO2
2.35ppb
NO2
0.19ppm
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 01:00:00 on 2026-08-14.
The best air quality in Malden, Massachusetts was recorded at 04:00:00 on 2026-08-14.
The real-time air quality index in Malden, Massachusetts is 26, 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 4.157 μg/m3.
The current PM10 levels in Malden, Massachusetts are 16.79 μg/m3.
The current carbon monoxide (CO) level in Malden, Massachusetts is 0.198 ppm.
The current sulfur dioxide (SO2) levels in Malden, Massachusetts are 0.801 ppb.
The current ozone (O3) levels at Malden, Massachusetts is 27.568 ppm.
The current nitrogen dioxide (NO2) levels at Malden, Massachusetts is 2.319 ppb.
All Rights Reserved © Ambee Inc. 2025