Stay updated with real-time air quality in Grand Terrace, 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)
90
Moderate
Grand Terrace, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
15.47 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
51.80 μg/m³
0
55
155
255
425
605+
66.65 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
8.25 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Grand Terrace, California
Grand Terrace, California
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AQI 74
Moderate
13.84μg/m³
PM2.5
49.93μg/m³
PM10
61.83ppb
O3
0.29ppb
SO2
9.48ppb
NO2
0.21ppm
CO
AQI 77
Moderate
12.58μg/m³
PM2.5
49.62μg/m³
PM10
62.76ppb
O3
0.29ppb
SO2
9.63ppb
NO2
0.21ppm
CO
AQI 75
Moderate
22.21μg/m³
PM2.5
51.46μg/m³
PM10
61.92ppb
O3
0.24ppb
SO2
6.81ppb
NO2
0.21ppm
CO
AQI 71
Moderate
11.36μg/m³
PM2.5
50.76μg/m³
PM10
61.08ppb
O3
0.29ppb
SO2
10.41ppb
NO2
0.20ppm
CO
AQI 75
Moderate
22.21μg/m³
PM2.5
51.88μg/m³
PM10
59.46ppb
O3
0.28ppb
SO2
9.15ppb
NO2
0.24ppm
CO
AQI 67
Moderate
15.47μg/m³
PM2.5
52.66μg/m³
PM10
59.85ppb
O3
0.28ppb
SO2
8.90ppb
NO2
0.25ppm
CO
Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Grand Terrace, California is updated every hour.
The worst air quality in Grand Terrace, California in the last 24 hours was observed at 12:00:00 on 2025-06-06.
In the last 24 hrs, the best air quality in Grand Terrace, California was observed at 08:00:00 on 2025-06-06.
The current air quality in Grand Terrace, California is 90, categorized as Moderate based on real-time data.
The most common pollutant in Grand Terrace, California is O3.
If the air quality in Grand Terrace, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Grand Terrace, California is 15.467 μg/m3.
The current PM10 concentration at Grand Terrace, California is 51.8 μg/m3.
The current carbon monoxide (CO) concentration at Grand Terrace, California is 0.213 ppm.
The current sulfur dioxide (SO2) concentration at Grand Terrace, California is 0.309 ppb.
The current ozone (O3) concentration at Grand Terrace, California is 66.648 ppm.
The current nitrogen dioxide (NO2) concentration at Grand Terrace, California is 8.252 ppb.
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