Stay updated with real-time air quality in Lemon Grove, 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)
49
Good
Lemon Grove, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.94 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.06 μg/m³
0
55
155
255
425
605+
26.84 ppb
0
55
71
86
201
201+
0.71 ppb
0
36
76
186
605
1005+
13.53 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Lemon Grove, California
Lemon Grove, California
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AQI 49
Good
8.54μg/m³
PM2.5
26.14μg/m³
PM10
26.32ppb
O3
0.71ppb
SO2
13.85ppb
NO2
0.27ppm
CO
AQI 44
Good
8.38μg/m³
PM2.5
25.92μg/m³
PM10
25.96ppb
O3
0.71ppb
SO2
13.81ppb
NO2
0.27ppm
CO
AQI 49
Good
8.55μg/m³
PM2.5
26.13μg/m³
PM10
26.48ppb
O3
0.71ppb
SO2
13.97ppb
NO2
0.27ppm
CO
AQI 44
Good
8.35μg/m³
PM2.5
25.88μg/m³
PM10
25.87ppb
O3
0.71ppb
SO2
13.78ppb
NO2
0.27ppm
CO
AQI 44
Good
7.74μg/m³
PM2.5
25.06μg/m³
PM10
24.30ppb
O3
0.70ppb
SO2
13.21ppb
NO2
0.27ppm
CO
AQI 44
Good
7.92μg/m³
PM2.5
25.33μg/m³
PM10
24.72ppb
O3
0.70ppb
SO2
13.50ppb
NO2
0.27ppm
CO
Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Lemon Grove, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Lemon Grove, California was at its worst at 03:00:00 on 2026-07-24.
In the last 24 hours, the best air quality in Lemon Grove, California was observed at 05:00:00 on 2026-07-23.
As of now, the AQI in Lemon Grove, California is 49, indicating Good conditions.
Lemon Grove, California air has the highest levels of PM2.5.
Poor air quality in Lemon Grove, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Lemon Grove, California are currently 8.94 μg/m3.
The PM10 concentration in Lemon Grove, California is 28.062 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Lemon Grove, California is 0.272 ppm.
Currently, Lemon Grove, California has a sulfur dioxide (SO2) concentration of 0.707 ppb.
The current ozone (O3) level in Lemon Grove, California at the moment is 26.837 ppm.
Nitrogen dioxide (NO2) level in Lemon Grove, California at the moment is 13.529 ppb.
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