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)
54
Moderate
Hays, Kansas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.64 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.25 μg/m³
0
55
155
255
425
605+
17.88 ppb
0
55
71
86
201
201+
1.58 ppb
0
36
76
186
605
1005+
2.52 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hays, Kansas
Hays, Kansas
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AQI 33
Good
6.10μg/m³
PM2.5
26.84μg/m³
PM10
21.22ppb
O3
0.17ppb
SO2
1.76ppb
NO2
0.14ppm
CO
AQI 23
Good
1.70μg/m³
PM2.5
4.00μg/m³
PM10
25.40ppb
O3
1.36ppb
SO2
3.41ppb
NO2
0.23ppm
CO
AQI 58
Moderate
13.03μg/m³
PM2.5
58.59μg/m³
PM10
18.02ppb
O3
0.28ppb
SO2
2.13ppb
NO2
0.17ppm
CO
AQI 60
Moderate
13.92μg/m³
PM2.5
19.24μg/m³
PM10
17.18ppb
O3
0.80ppb
SO2
3.88ppb
NO2
0.25ppm
CO
AQI 56
Moderate
12.14μg/m³
PM2.5
20.34μg/m³
PM10
18.12ppb
O3
0.78ppb
SO2
3.87ppb
NO2
0.24ppm
CO
AQI 22
Good
3.51μg/m³
PM2.5
16.00μg/m³
PM10
20.31ppb
O3
0.13ppb
SO2
2.48ppb
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 09:00:00 on 2025-12-07.
In the last 24 hours, the best air quality in Hays, Kansas was observed at 08:00:00 on 2025-12-07.
As of now, the AQI in Hays, Kansas is 54, indicating Moderate 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 10.643 μg/m3.
The PM10 concentration in Hays, Kansas is 23.245 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hays, Kansas is 0.223 ppm.
Currently, Hays, Kansas has a sulfur dioxide (SO2) concentration of 1.581 ppb.
The current ozone (O3) level in Hays, Kansas at the moment is 17.884 ppm.
Nitrogen dioxide (NO2) level in Hays, Kansas at the moment is 2.518 ppb.
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