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
7.51 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
44.60 μg/m³
0
55
155
255
425
605+
31.46 ppb
0
55
71
86
201
201+
0.62 ppb
0
36
76
186
605
1005+
2.81 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hays, Kansas
Hays, Kansas
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AQI 28
Good
4.50μg/m³
PM2.5
19.22μg/m³
PM10
30.00ppb
O3
0.47ppb
SO2
4.10ppb
NO2
0.20ppm
CO
AQI 40
Good
7.10μg/m³
PM2.5
43.00μg/m³
PM10
33.58ppb
O3
0.98ppb
SO2
5.75ppb
NO2
0.31ppm
CO
AQI 27
Good
3.60μg/m³
PM2.5
16.02μg/m³
PM10
29.46ppb
O3
0.68ppb
SO2
3.96ppb
NO2
0.17ppm
CO
AQI 52
Moderate
10.44μg/m³
PM2.5
33.45μg/m³
PM10
34.36ppb
O3
0.80ppb
SO2
8.36ppb
NO2
0.30ppm
CO
AQI 49
Good
9.16μg/m³
PM2.5
31.08μg/m³
PM10
34.51ppb
O3
0.80ppb
SO2
5.97ppb
NO2
0.29ppm
CO
AQI 33
Good
5.57μg/m³
PM2.5
24.07μg/m³
PM10
27.86ppb
O3
0.19ppb
SO2
2.46ppb
NO2
0.18ppm
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 02:00:00 on 2026-01-23.
In the last 24 hours, the best air quality in Hays, Kansas was observed at 01:00:00 on 2026-01-22.
As of now, the AQI in Hays, Kansas is 52, 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 9.757 μg/m3.
The PM10 concentration in Hays, Kansas is 50.648 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hays, Kansas is 0.309 ppm.
Currently, Hays, Kansas has a sulfur dioxide (SO2) concentration of 1.273 ppb.
The current ozone (O3) level in Hays, Kansas at the moment is 32.027 ppm.
Nitrogen dioxide (NO2) level in Hays, Kansas at the moment is 3.147 ppb.
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