Stay updated with real-time air quality in Tiffin, 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)
54
Moderate
Tiffin, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
49.38 μg/m³
0
55
155
255
425
605+
53.67 ppb
0
55
71
86
201
201+
1.58 ppb
0
36
76
186
605
1005+
8.58 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Tiffin, Ohio
Tiffin, Ohio
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AQI 45
Good
7.81μg/m³
PM2.5
45.92μg/m³
PM10
48.87ppb
O3
2.86ppb
SO2
7.79ppb
NO2
0.23ppm
CO
AQI 44
Good
7.89μg/m³
PM2.5
48.02μg/m³
PM10
47.86ppb
O3
1.59ppb
SO2
6.34ppb
NO2
0.23ppm
CO
AQI 48
Good
6.54μg/m³
PM2.5
52.14μg/m³
PM10
45.13ppb
O3
1.78ppb
SO2
7.51ppb
NO2
0.24ppm
CO
AQI 49
Good
8.85μg/m³
PM2.5
51.73μg/m³
PM10
50.24ppb
O3
1.86ppb
SO2
11.50ppb
NO2
0.23ppm
CO
AQI 44
Good
5.92μg/m³
PM2.5
36.36μg/m³
PM10
47.22ppb
O3
1.71ppb
SO2
7.48ppb
NO2
0.23ppm
CO
AQI 44
Good
7.80μg/m³
PM2.5
40.06μg/m³
PM10
47.18ppb
O3
1.60ppb
SO2
6.27ppb
NO2
0.23ppm
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 Tiffin, Ohio is updated on an hourly basis.
The worst air quality in Tiffin, Ohio was recorded at 09:00:00 on 2026-10-22.
The best air quality in Tiffin, Ohio was recorded at 03:00:00 on 2026-10-22.
The real-time air quality index in Tiffin, Ohio is 54, currently categorized as Moderate.
The most common pollutant in Tiffin, Ohio is PM2.5.
If the air quality in Tiffin, Ohio is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Tiffin, Ohio at present are 11.164 μg/m3.
The current PM10 levels in Tiffin, Ohio are 49.378 μg/m3.
The current carbon monoxide (CO) level in Tiffin, Ohio is 0.232 ppm.
The current sulfur dioxide (SO2) levels in Tiffin, Ohio are 1.581 ppb.
The current ozone (O3) levels at Tiffin, Ohio is 53.672 ppm.
The current nitrogen dioxide (NO2) levels at Tiffin, Ohio is 8.583 ppb.
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