Stay updated with real-time air quality in Rialto, 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)
35
Good
Rialto, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.12 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.83 μg/m³
0
55
155
255
425
605+
37.84 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
8.80 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Rialto, California
Rialto, California
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AQI 35
Good
3.22μg/m³
PM2.5
7.94μg/m³
PM10
38.44ppb
O3
0.30ppb
SO2
8.64ppb
NO2
0.24ppm
CO
AQI 35
Good
2.10μg/m³
PM2.5
6.41μg/m³
PM10
38.20ppb
O3
0.29ppb
SO2
8.86ppb
NO2
0.25ppm
CO
AQI 34
Good
4.22μg/m³
PM2.5
8.06μg/m³
PM10
36.83ppb
O3
0.30ppb
SO2
11.00ppb
NO2
0.26ppm
CO
AQI 35
Good
1.69μg/m³
PM2.5
6.27μg/m³
PM10
37.57ppb
O3
0.29ppb
SO2
7.00ppb
NO2
0.25ppm
CO
AQI 34
Good
1.25μg/m³
PM2.5
5.11μg/m³
PM10
37.06ppb
O3
0.29ppb
SO2
7.46ppb
NO2
0.25ppm
CO
AQI 35
Good
2.31μg/m³
PM2.5
7.00μg/m³
PM10
37.72ppb
O3
0.29ppb
SO2
6.46ppb
NO2
0.24ppm
CO
The air quality data for California, 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 Rialto, California are available every hour.
Rialto, California experienced its worst air quality at 01:00:00, 2026-10-22.
The best air quality in Rialto, California was observed at 03:00:00 on 2026-10-22.
The air quality in Rialto, California right now is Good, with an AQI of 35.
In Rialto, California, O3 is the most frequently found pollutant.
When air quality in Rialto, California is compromised, staying indoors and wearing a mask can reduce health risks.
Rialto, California currently has a PM2.5 concentration of 3.119 μg/m3.
Rialto, California currently has a PM10 concentration of 7.831 μg/m3.
The current carbon monoxide (CO) level in Rialto, California is 0.249 ppm.
The current sulfur dioxide (SO2) concentration in Rialto, California is 0.296 ppb.
Rialto, California currently has an ozone (O3) concentration of 37.84 ppm.
The current level of nitrogen dioxide (NO2) in Rialto, California is 8.805 ppb.
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