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)
58
Moderate
Rialto, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
13.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
39.06 μg/m³
0
55
155
255
425
605+
40.38 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
12.36 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Rialto, California
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AQI 64
Moderate
15.93μg/m³
PM2.5
49.90μg/m³
PM10
29.07ppb
O3
0.57ppb
SO2
19.46ppb
NO2
0.36ppm
CO
AQI 49
Good
9.11μg/m³
PM2.5
36.57μg/m³
PM10
33.61ppb
O3
0.60ppb
SO2
12.45ppb
NO2
0.36ppm
CO
AQI 60
Moderate
13.81μg/m³
PM2.5
55.26μg/m³
PM10
25.48ppb
O3
0.76ppb
SO2
24.23ppb
NO2
0.40ppm
CO
AQI 52
Moderate
9.55μg/m³
PM2.5
35.65μg/m³
PM10
34.11ppb
O3
0.53ppb
SO2
8.39ppb
NO2
0.34ppm
CO
AQI 38
Good
7.50μg/m³
PM2.5
33.93μg/m³
PM10
34.12ppb
O3
0.54ppb
SO2
5.40ppb
NO2
0.34ppm
CO
AQI 56
Moderate
12.50μg/m³
PM2.5
40.74μg/m³
PM10
32.74ppb
O3
0.52ppb
SO2
11.78ppb
NO2
0.34ppm
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 04:00:00, 2026-02-10.
The best air quality in Rialto, California was observed at 12:00:00 on 2026-02-10.
The air quality in Rialto, California right now is Moderate, with an AQI of 58.
In Rialto, California, PM2.5 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 13.128 μg/m3.
Rialto, California currently has a PM10 concentration of 39.056 μg/m3.
The current carbon monoxide (CO) level in Rialto, California is 0.225 ppm.
The current sulfur dioxide (SO2) concentration in Rialto, California is 0.512 ppb.
Rialto, California currently has an ozone (O3) concentration of 40.375 ppm.
The current level of nitrogen dioxide (NO2) in Rialto, California is 12.36 ppb.
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