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)
79
Moderate
Crown Point, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
24.09 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
83.73 μg/m³
0
55
155
255
425
605+
28.16 ppb
0
55
71
86
201
201+
2.82 ppb
0
36
76
186
605
1005+
2.39 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Crown Point, Indiana
Crown Point, Indiana
Scroll To Air Quality MapLoading...
AQI 86
Moderate
28.19μg/m³
PM2.5
107.29μg/m³
PM10
28.84ppb
O3
4.80ppb
SO2
1.38ppb
NO2
0.22ppm
CO
AQI 86
Moderate
28.12μg/m³
PM2.5
119.76μg/m³
PM10
28.59ppb
O3
4.38ppb
SO2
1.39ppb
NO2
0.22ppm
CO
AQI 86
Moderate
27.71μg/m³
PM2.5
126.06μg/m³
PM10
28.26ppb
O3
4.89ppb
SO2
1.41ppb
NO2
0.22ppm
CO
AQI 88
Moderate
28.57μg/m³
PM2.5
123.40μg/m³
PM10
31.04ppb
O3
5.97ppb
SO2
1.51ppb
NO2
0.22ppm
CO
AQI 90
Moderate
29.71μg/m³
PM2.5
129.08μg/m³
PM10
30.78ppb
O3
6.03ppb
SO2
1.46ppb
NO2
0.22ppm
CO
AQI 82
Moderate
25.75μg/m³
PM2.5
81.20μg/m³
PM10
30.58ppb
O3
3.91ppb
SO2
1.34ppb
NO2
0.22ppm
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 09:00:00 on 2026-08-23.
In the last 24 hours, the best air quality in Crown Point, Indiana was observed at 07:00:00 on 2026-08-23.
As of now, the AQI in Crown Point, Indiana is 79, indicating Moderate 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 24.093 μg/m3.
The PM10 concentration in Crown Point, Indiana is 83.732 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Crown Point, Indiana is 0.204 ppm.
Currently, Crown Point, Indiana has a sulfur dioxide (SO2) concentration of 2.816 ppb.
The current ozone (O3) level in Crown Point, Indiana at the moment is 28.156 ppm.
Nitrogen dioxide (NO2) level in Crown Point, Indiana at the moment is 2.387 ppb.
All Rights Reserved © Ambee Inc. 2025