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

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.12 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.61 μg/m³
0
55
155
255
425
605+
24.08 ppb
0
55
71
86
201
201+
1.27 ppb
0
36
76
186
605
1005+
4.10 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hilliard, Ohio
Hilliard, Ohio
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AQI 38
Good
6.77μg/m³
PM2.5
25.47μg/m³
PM10
23.84ppb
O3
1.27ppb
SO2
3.42ppb
NO2
0.11ppm
CO
AQI 44
Good
8.27μg/m³
PM2.5
22.27μg/m³
PM10
24.17ppb
O3
1.27ppb
SO2
4.26ppb
NO2
0.12ppm
CO
AQI 44
Good
8.07μg/m³
PM2.5
23.69μg/m³
PM10
24.52ppb
O3
1.27ppb
SO2
3.95ppb
NO2
0.11ppm
CO
AQI 38
Good
6.80μg/m³
PM2.5
25.46μg/m³
PM10
23.81ppb
O3
1.27ppb
SO2
3.45ppb
NO2
0.11ppm
CO
AQI 49
Good
8.68μg/m³
PM2.5
19.01μg/m³
PM10
24.23ppb
O3
1.27ppb
SO2
4.73ppb
NO2
0.12ppm
CO
AQI 52
Moderate
10.33μg/m³
PM2.5
23.42μg/m³
PM10
24.18ppb
O3
1.29ppb
SO2
4.79ppb
NO2
0.13ppm
CO
Air quality measurements for Ohio, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Hilliard, Ohio is updated on an hourly basis.
The worst air quality in Hilliard, Ohio was recorded at 03:00:00 on 2026-08-18.
The best air quality in Hilliard, Ohio was recorded at 06:00:00 on 2026-08-17.
The real-time air quality index in Hilliard, Ohio is 44, currently categorized as Good.
The most common pollutant in Hilliard, Ohio is PM2.5.
If the air quality in Hilliard, Ohio is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Hilliard, Ohio at present are 8.118 μg/m3.
The current PM10 levels in Hilliard, Ohio are 23.61 μg/m3.
The current carbon monoxide (CO) level in Hilliard, Ohio is 0.116 ppm.
The current sulfur dioxide (SO2) levels in Hilliard, Ohio are 1.272 ppb.
The current ozone (O3) levels at Hilliard, Ohio is 24.081 ppm.
The current nitrogen dioxide (NO2) levels at Hilliard, Ohio is 4.103 ppb.
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