Stay updated with real-time air quality in Norwalk, 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)
69
Moderate
Norwalk, Ohio
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
19.02 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
59.05 μg/m³
0
55
155
255
425
605+
26.36 ppb
0
55
71
86
201
201+
1.79 ppb
0
36
76
186
605
1005+
7.29 ppb
0
54
101
361
1250
2050+
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Norwalk, Ohio
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AQI 56
Moderate
11.68μg/m³
PM2.5
51.94μg/m³
PM10
44.45ppb
O3
0.54ppb
SO2
4.23ppb
NO2
0.27ppm
CO
AQI 67
Moderate
17.52μg/m³
PM2.5
52.01μg/m³
PM10
25.97ppb
O3
1.87ppb
SO2
13.59ppb
NO2
0.36ppm
CO
AQI 60
Moderate
14.45μg/m³
PM2.5
51.05μg/m³
PM10
31.53ppb
O3
1.87ppb
SO2
14.28ppb
NO2
0.38ppm
CO
AQI 58
Moderate
12.90μg/m³
PM2.5
51.04μg/m³
PM10
30.31ppb
O3
1.86ppb
SO2
10.65ppb
NO2
0.39ppm
CO
AQI 64
Moderate
16.05μg/m³
PM2.5
24.87μg/m³
PM10
28.94ppb
O3
3.84ppb
SO2
6.11ppb
NO2
0.36ppm
CO
AQI 58
Moderate
12.97μg/m³
PM2.5
52.82μg/m³
PM10
30.58ppb
O3
1.87ppb
SO2
10.74ppb
NO2
0.39ppm
CO
Air quality data and pollutant measurements for Ohio, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Norwalk, Ohio is updated every hour.
The worst air quality in Norwalk, Ohio in the last 24 hours was observed at 03:00:00 on 2025-06-05.
In the last 24 hrs, the best air quality in Norwalk, Ohio was observed at 01:00:00 on 2025-06-06.
The current air quality in Norwalk, Ohio is 69, categorized as Moderate based on real-time data.
The most common pollutant in Norwalk, Ohio is PM2.5.
If the air quality in Norwalk, Ohio is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Norwalk, Ohio is 19.025 μg/m3.
The current PM10 concentration at Norwalk, Ohio is 59.055 μg/m3.
The current carbon monoxide (CO) concentration at Norwalk, Ohio is 0.313 ppm.
The current sulfur dioxide (SO2) concentration at Norwalk, Ohio is 1.79 ppb.
The current ozone (O3) concentration at Norwalk, Ohio is 26.363 ppm.
The current nitrogen dioxide (NO2) concentration at Norwalk, Ohio is 7.29 ppb.
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