Stay updated with real-time air quality in Vista, 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)
52
Moderate
Vista, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.90 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
32.44 μg/m³
0
55
155
255
425
605+
41.56 ppb
0
55
71
86
201
201+
0.66 ppb
0
36
76
186
605
1005+
5.21 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Vista, California
Vista, California
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AQI 58
Moderate
12.66μg/m³
PM2.5
32.73μg/m³
PM10
44.28ppb
O3
0.69ppb
SO2
5.25ppb
NO2
0.20ppm
CO
AQI 52
Moderate
9.64μg/m³
PM2.5
26.06μg/m³
PM10
41.17ppb
O3
0.65ppb
SO2
5.08ppb
NO2
0.20ppm
CO
AQI 49
Good
8.74μg/m³
PM2.5
25.14μg/m³
PM10
41.03ppb
O3
0.64ppb
SO2
4.48ppb
NO2
0.20ppm
CO
AQI 49
Good
8.79μg/m³
PM2.5
25.17μg/m³
PM10
41.03ppb
O3
0.64ppb
SO2
4.44ppb
NO2
0.20ppm
CO
AQI 56
Moderate
11.75μg/m³
PM2.5
26.37μg/m³
PM10
46.32ppb
O3
0.70ppb
SO2
5.13ppb
NO2
0.20ppm
CO
AQI 49
Good
8.95μg/m³
PM2.5
25.23μg/m³
PM10
40.74ppb
O3
0.69ppb
SO2
5.55ppb
NO2
0.20ppm
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 Vista, California are available every hour.
Vista, California experienced its worst air quality at 08:00:00, 2026-06-07.
The best air quality in Vista, California was observed at 11:00:00 on 2026-06-08.
The air quality in Vista, California right now is Moderate, with an AQI of 52.
In Vista, California, PM2.5 is the most frequently found pollutant.
When air quality in Vista, California is compromised, staying indoors and wearing a mask can reduce health risks.
Vista, California currently has a PM2.5 concentration of 9.9 μg/m3.
Vista, California currently has a PM10 concentration of 32.443 μg/m3.
The current carbon monoxide (CO) level in Vista, California is 0.2 ppm.
The current sulfur dioxide (SO2) concentration in Vista, California is 0.658 ppb.
Vista, California currently has an ozone (O3) concentration of 41.558 ppm.
The current level of nitrogen dioxide (NO2) in Vista, California is 5.205 ppb.
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