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)
27
Good
Hilliard, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.38 μg/m³
0
55
155
255
425
605+
16.35 ppb
0
55
71
86
201
201+
1.60 ppb
0
36
76
186
605
1005+
3.25 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hilliard, Ohio
Hilliard, Ohio
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AQI 27
Good
4.56μg/m³
PM2.5
17.32μg/m³
PM10
14.82ppb
O3
1.84ppb
SO2
1.58ppb
NO2
0.30ppm
CO
AQI 27
Good
5.12μg/m³
PM2.5
13.21μg/m³
PM10
17.25ppb
O3
1.82ppb
SO2
2.86ppb
NO2
0.31ppm
CO
AQI 27
Good
4.98μg/m³
PM2.5
14.51μg/m³
PM10
17.00ppb
O3
1.82ppb
SO2
2.48ppb
NO2
0.30ppm
CO
AQI 27
Good
4.57μg/m³
PM2.5
17.42μg/m³
PM10
14.81ppb
O3
1.83ppb
SO2
1.61ppb
NO2
0.30ppm
CO
AQI 33
Good
5.52μg/m³
PM2.5
10.92μg/m³
PM10
18.79ppb
O3
1.82ppb
SO2
3.58ppb
NO2
0.31ppm
CO
AQI 27
Good
5.09μg/m³
PM2.5
9.86μg/m³
PM10
16.23ppb
O3
1.83ppb
SO2
3.28ppb
NO2
0.31ppm
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 2026-09-07.
The best air quality in Hilliard, Ohio was recorded at 12:00:00 on 2026-09-07.
The real-time air quality index in Hilliard, Ohio is 27, 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 5 μg/m3.
The current PM10 levels in Hilliard, Ohio are 14.384 μg/m3.
The current carbon monoxide (CO) level in Hilliard, Ohio is 0.296 ppm.
The current sulfur dioxide (SO2) levels in Hilliard, Ohio are 1.598 ppb.
The current ozone (O3) levels at Hilliard, Ohio is 16.354 ppm.
The current nitrogen dioxide (NO2) levels at Hilliard, Ohio is 3.246 ppb.
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