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

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.67 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.87 μg/m³
0
55
155
255
425
605+
3.51 ppb
0
55
71
86
201
201+
0.89 ppb
0
36
76
186
605
1005+
8.57 ppb
0
54
101
361
1250
2050+
0.39 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Redlands, California
Redlands, California
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AQI 38
Good
7.38μg/m³
PM2.5
18.52μg/m³
PM10
5.92ppb
O3
0.64ppb
SO2
9.13ppb
NO2
0.39ppm
CO
AQI 44
Good
8.42μg/m³
PM2.5
18.98μg/m³
PM10
6.43ppb
O3
0.64ppb
SO2
8.74ppb
NO2
0.39ppm
CO
AQI 22
Good
4.04μg/m³
PM2.5
16.99μg/m³
PM10
5.84ppb
O3
0.64ppb
SO2
8.65ppb
NO2
0.39ppm
CO
AQI 38
Good
6.95μg/m³
PM2.5
17.62μg/m³
PM10
6.32ppb
O3
0.65ppb
SO2
9.61ppb
NO2
0.39ppm
CO
AQI 49
Good
9.27μg/m³
PM2.5
18.78μg/m³
PM10
5.82ppb
O3
0.65ppb
SO2
10.91ppb
NO2
0.40ppm
CO
AQI 56
Moderate
11.86μg/m³
PM2.5
22.41μg/m³
PM10
3.80ppb
O3
0.62ppb
SO2
9.86ppb
NO2
0.39ppm
CO
Air quality measurements for California, 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 Redlands, California is updated on an hourly basis.
The worst air quality in Redlands, California was recorded at 10:00:00 on 2026-09-07.
The best air quality in Redlands, California was recorded at 11:00:00 on 2026-09-06.
The real-time air quality index in Redlands, California is 27, currently categorized as Good.
The most common pollutant in Redlands, California is PM2.5.
If the air quality in Redlands, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Redlands, California at present are 4.67 μg/m3.
The current PM10 levels in Redlands, California are 15.866 μg/m3.
The current carbon monoxide (CO) level in Redlands, California is 0.387 ppm.
The current sulfur dioxide (SO2) levels in Redlands, California are 0.894 ppb.
The current ozone (O3) levels at Redlands, California is 3.513 ppm.
The current nitrogen dioxide (NO2) levels at Redlands, California is 8.574 ppb.
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