Stay updated with real-time air quality in Westfield, Indiana 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)
19
Good
Westfield, Indiana
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.60 μg/m³
0
55
155
255
425
605+
20.21 ppb
0
55
71
86
201
201+
1.14 ppb
0
36
76
186
605
1005+
6.08 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Westfield, Indiana
Westfield, Indiana
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AQI 19
Good
3.06μg/m³
PM2.5
12.73μg/m³
PM10
20.50ppb
O3
1.14ppb
SO2
6.08ppb
NO2
0.28ppm
CO
AQI 19
Good
3.28μg/m³
PM2.5
12.93μg/m³
PM10
20.00ppb
O3
1.34ppb
SO2
6.33ppb
NO2
0.27ppm
CO
AQI 22
Good
3.92μg/m³
PM2.5
16.88μg/m³
PM10
20.19ppb
O3
1.34ppb
SO2
6.17ppb
NO2
0.28ppm
CO
AQI 19
Good
3.06μg/m³
PM2.5
12.74μg/m³
PM10
20.06ppb
O3
1.09ppb
SO2
5.83ppb
NO2
0.27ppm
CO
AQI 19
Good
3.06μg/m³
PM2.5
12.39μg/m³
PM10
20.67ppb
O3
1.03ppb
SO2
5.93ppb
NO2
0.28ppm
CO
AQI 22
Good
4.39μg/m³
PM2.5
19.13μg/m³
PM10
20.17ppb
O3
1.35ppb
SO2
6.24ppb
NO2
0.28ppm
CO
Air quality and pollutant data for Indiana, 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 Westfield, Indiana is updated every hour for accuracy.
In the past 24 hours, the air quality in Westfield, Indiana was at its worst at 11:00:00 on 2025-10-21.
In the last 24 hours, the best air quality in Westfield, Indiana was observed at 03:00:00 on 2025-10-22.
As of now, the AQI in Westfield, Indiana is 19, indicating Good conditions.
Westfield, Indiana air has the highest levels of O3.
Poor air quality in Westfield, Indiana means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Westfield, Indiana are currently 3.082 μg/m3.
The PM10 concentration in Westfield, Indiana is 12.597 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Westfield, Indiana is 0.282 ppm.
Currently, Westfield, Indiana has a sulfur dioxide (SO2) concentration of 1.137 ppb.
The current ozone (O3) level in Westfield, Indiana at the moment is 20.215 ppm.
Nitrogen dioxide (NO2) level in Westfield, Indiana at the moment is 6.084 ppb.
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