Stay updated with real-time air quality in Hays, Kansas 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
Hays, Kansas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.66 μg/m³
0
55
155
255
425
605+
44.38 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
5.65 ppb
0
54
101
361
1250
2050+
0.35 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Hays, Kansas
Hays, Kansas
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AQI 50
Good
8.54μg/m³
PM2.5
37.34μg/m³
PM10
53.99ppb
O3
0.42ppb
SO2
0.37ppb
NO2
0.17ppm
CO
AQI 45
Good
7.47μg/m³
PM2.5
32.88μg/m³
PM10
49.22ppb
O3
0.46ppb
SO2
0.36ppb
NO2
0.15ppm
CO
AQI 61
Moderate
8.32μg/m³
PM2.5
36.79μg/m³
PM10
57.67ppb
O3
0.46ppb
SO2
0.52ppb
NO2
0.16ppm
CO
AQI 50
Good
9.39μg/m³
PM2.5
31.97μg/m³
PM10
53.82ppb
O3
0.60ppb
SO2
4.81ppb
NO2
0.43ppm
CO
AQI 49
Good
9.26μg/m³
PM2.5
31.93μg/m³
PM10
52.60ppb
O3
0.53ppb
SO2
4.75ppb
NO2
0.41ppm
CO
AQI 44
Good
7.53μg/m³
PM2.5
33.09μg/m³
PM10
46.94ppb
O3
0.39ppb
SO2
0.57ppb
NO2
0.13ppm
CO
Air quality and pollutant data for Kansas, 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 Hays, Kansas is updated every hour for accuracy.
In the past 24 hours, the air quality in Hays, Kansas was at its worst at 08:00:00 on 2026-10-22.
In the last 24 hours, the best air quality in Hays, Kansas was observed at 01:00:00 on 2026-10-22.
As of now, the AQI in Hays, Kansas is 44, indicating Good conditions.
Hays, Kansas air has the highest levels of PM2.5.
Poor air quality in Hays, Kansas means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Hays, Kansas are currently 8.252 μg/m3.
The PM10 concentration in Hays, Kansas is 28.659 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hays, Kansas is 0.349 ppm.
Currently, Hays, Kansas has a sulfur dioxide (SO2) concentration of 0.598 ppb.
The current ozone (O3) level in Hays, Kansas at the moment is 44.379 ppm.
Nitrogen dioxide (NO2) level in Hays, Kansas at the moment is 5.647 ppb.
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