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)
44
Good
Crown Point, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.76 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.18 μg/m³
0
55
155
255
425
605+
44.33 ppb
0
55
71
86
201
201+
0.52 ppb
0
36
76
186
605
1005+
3.35 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
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AQI 40
Good
5.39μg/m³
PM2.5
20.88μg/m³
PM10
42.51ppb
O3
0.46ppb
SO2
2.18ppb
NO2
0.23ppm
CO
AQI 44
Good
5.92μg/m³
PM2.5
22.93μg/m³
PM10
46.77ppb
O3
0.43ppb
SO2
2.85ppb
NO2
0.23ppm
CO
AQI 42
Good
5.40μg/m³
PM2.5
21.07μg/m³
PM10
45.02ppb
O3
0.45ppb
SO2
2.63ppb
NO2
0.23ppm
CO
AQI 41
Good
5.51μg/m³
PM2.5
24.27μg/m³
PM10
44.10ppb
O3
0.47ppb
SO2
2.23ppb
NO2
0.23ppm
CO
AQI 41
Good
5.51μg/m³
PM2.5
24.21μg/m³
PM10
44.14ppb
O3
0.48ppb
SO2
2.15ppb
NO2
0.23ppm
CO
AQI 44
Good
6.39μg/m³
PM2.5
22.18μg/m³
PM10
47.00ppb
O3
0.43ppb
SO2
2.89ppb
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 10:00:00 on 2026-06-13.
In the last 24 hours, the best air quality in Crown Point, Indiana was observed at 01:00:00 on 2026-06-13.
As of now, the AQI in Crown Point, Indiana is 42, indicating Good conditions.
Crown Point, Indiana air has the highest levels of O3.
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 5.964 μg/m3.
The PM10 concentration in Crown Point, Indiana is 17.958 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Crown Point, Indiana is 0.228 ppm.
Currently, Crown Point, Indiana has a sulfur dioxide (SO2) concentration of 0.444 ppb.
The current ozone (O3) level in Crown Point, Indiana at the moment is 44.879 ppm.
Nitrogen dioxide (NO2) level in Crown Point, Indiana at the moment is 2.498 ppb.
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