Stay updated with real-time air quality in San Luis, Arizona 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)
40
Good
San Luis, Arizona
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.12 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.83 μg/m³
0
55
155
255
425
605+
42.84 ppb
0
55
71
86
201
201+
0.14 ppb
0
36
76
186
605
1005+
1.74 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
San Luis, Arizona
San Luis, Arizona
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AQI 53
Moderate
5.88μg/m³
PM2.5
60.48μg/m³
PM10
35.42ppb
O3
0.19ppb
SO2
1.28ppb
NO2
0.25ppm
CO
AQI 52
Moderate
5.71μg/m³
PM2.5
58.15μg/m³
PM10
35.02ppb
O3
0.20ppb
SO2
1.26ppb
NO2
0.25ppm
CO
AQI 41
Good
6.31μg/m³
PM2.5
44.46μg/m³
PM10
37.87ppb
O3
0.22ppb
SO2
1.86ppb
NO2
0.25ppm
CO
AQI 44
Good
7.89μg/m³
PM2.5
37.99μg/m³
PM10
39.10ppb
O3
0.10ppb
SO2
1.70ppb
NO2
0.20ppm
CO
AQI 93
Moderate
5.12μg/m³
PM2.5
138.82μg/m³
PM10
43.00ppb
O3
0.12ppb
SO2
1.58ppb
NO2
0.20ppm
CO
AQI 87
Moderate
6.91μg/m³
PM2.5
128.29μg/m³
PM10
43.38ppb
O3
0.13ppb
SO2
1.58ppb
NO2
0.20ppm
CO
The air quality data for Arizona, 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 San Luis, Arizona are available every hour.
San Luis, Arizona experienced its worst air quality at 12:00:00, 2026-10-22.
The best air quality in San Luis, Arizona was observed at 11:00:00 on 2026-10-22.
The air quality in San Luis, Arizona right now is Good, with an AQI of 40.
In San Luis, Arizona, O3 is the most frequently found pollutant.
When air quality in San Luis, Arizona is compromised, staying indoors and wearing a mask can reduce health risks.
San Luis, Arizona currently has a PM2.5 concentration of 4.116 μg/m3.
San Luis, Arizona currently has a PM10 concentration of 17.829 μg/m3.
The current carbon monoxide (CO) level in San Luis, Arizona is 0.254 ppm.
The current sulfur dioxide (SO2) concentration in San Luis, Arizona is 0.145 ppb.
San Luis, Arizona currently has an ozone (O3) concentration of 42.84 ppm.
The current level of nitrogen dioxide (NO2) in San Luis, Arizona is 1.743 ppb.
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