Stay updated with real-time air quality in Crown Point, 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)
34
Good
Crown Point, Indiana
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.22 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
24.25 μg/m³
0
55
155
255
425
605+
37.11 ppb
0
55
71
86
201
201+
0.87 ppb
0
36
76
186
605
1005+
4.50 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Crown Point, Indiana
Crown Point, Indiana
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AQI 35
Good
4.89μg/m³
PM2.5
12.24μg/m³
PM10
37.66ppb
O3
0.87ppb
SO2
4.50ppb
NO2
0.24ppm
CO
AQI 34
Good
6.46μg/m³
PM2.5
27.72μg/m³
PM10
37.06ppb
O3
0.87ppb
SO2
4.25ppb
NO2
0.24ppm
CO
AQI 34
Good
6.07μg/m³
PM2.5
24.20μg/m³
PM10
36.86ppb
O3
0.85ppb
SO2
4.49ppb
NO2
0.24ppm
CO
AQI 34
Good
3.45μg/m³
PM2.5
15.22μg/m³
PM10
37.17ppb
O3
0.83ppb
SO2
4.50ppb
NO2
0.24ppm
CO
AQI 34
Good
3.45μg/m³
PM2.5
15.14μg/m³
PM10
37.23ppb
O3
0.83ppb
SO2
4.50ppb
NO2
0.25ppm
CO
AQI 38
Good
7.02μg/m³
PM2.5
36.20μg/m³
PM10
36.30ppb
O3
0.89ppb
SO2
4.23ppb
NO2
0.24ppm
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 Crown Point, Indiana is updated every hour for accuracy.
In the past 24 hours, the air quality in Crown Point, Indiana was at its worst at 07:00:00 on 2025-09-08.
In the last 24 hours, the best air quality in Crown Point, Indiana was observed at 05:00:00 on 2025-09-08.
As of now, the AQI in Crown Point, Indiana is 22, indicating Good conditions.
Crown Point, Indiana air has the highest levels of PM2.5.
Poor air quality in Crown Point, Indiana means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Crown Point, Indiana are currently 3.761 μg/m3.
The PM10 concentration in Crown Point, Indiana is 20.449 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Crown Point, Indiana is 0.238 ppm.
Currently, Crown Point, Indiana has a sulfur dioxide (SO2) concentration of 0.886 ppb.
The current ozone (O3) level in Crown Point, Indiana at the moment is 21.486 ppm.
Nitrogen dioxide (NO2) level in Crown Point, Indiana at the moment is 2.999 ppb.
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