Stay updated with real-time air quality in Merced, 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)
22
Good
Merced, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.64 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.70 μg/m³
0
55
155
255
425
605+
17.00 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
3.03 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Merced, California
Merced, California
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AQI 35
Good
6.10μg/m³
PM2.5
26.14μg/m³
PM10
37.77ppb
O3
0.70ppb
SO2
6.36ppb
NO2
0.14ppm
CO
AQI 36
Good
5.40μg/m³
PM2.5
24.19μg/m³
PM10
38.95ppb
O3
0.71ppb
SO2
6.13ppb
NO2
0.14ppm
CO
AQI 33
Good
5.81μg/m³
PM2.5
24.32μg/m³
PM10
36.18ppb
O3
0.71ppb
SO2
6.11ppb
NO2
0.14ppm
CO
AQI 36
Good
4.43μg/m³
PM2.5
26.47μg/m³
PM10
39.07ppb
O3
0.67ppb
SO2
7.15ppb
NO2
0.14ppm
CO
AQI 36
Good
3.23μg/m³
PM2.5
29.96μg/m³
PM10
38.63ppb
O3
0.72ppb
SO2
3.51ppb
NO2
0.14ppm
CO
AQI 36
Good
2.91μg/m³
PM2.5
29.98μg/m³
PM10
38.98ppb
O3
0.73ppb
SO2
3.20ppb
NO2
0.14ppm
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 Merced, California are available every hour.
Merced, California experienced its worst air quality at 01:00:00, 2025-07-24.
The best air quality in Merced, California was observed at 02:00:00 on 2025-07-23.
The air quality in Merced, California right now is Good, with an AQI of 36.
In Merced, California, O3 is the most frequently found pollutant.
When air quality in Merced, California is compromised, staying indoors and wearing a mask can reduce health risks.
Merced, California currently has a PM2.5 concentration of 5.1 μg/m3.
Merced, California currently has a PM10 concentration of 36 μg/m3.
The current carbon monoxide (CO) level in Merced, California is 0.147 ppm.
The current sulfur dioxide (SO2) concentration in Merced, California is 0.691 ppb.
Merced, California currently has an ozone (O3) concentration of 38.934 ppm.
The current level of nitrogen dioxide (NO2) in Merced, California is 6.57 ppb.
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