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Live air quality index in Norwalk, Ohio today

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

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Norwalk, Ohio

Last updated: ... (Local time)

Major air pollutants in Norwalk, Ohio

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

19.02 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

59.05 μg/m³

0

55

155

255

425

605+

Ozone (O3)

26.36 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

1.79 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

7.29 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.31 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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How accurate is Ohio, USA air quality data?

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.


Frequently asked questions

How often is the air quality data for Norwalk, Ohio updated?

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The air quality for Norwalk, Ohio is updated every hour.


When was the worst air quality at Norwalk, Ohio in the last 24 hrs?

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The worst air quality in Norwalk, Ohio in the last 24 hours was observed at 03:00:00 on 2025-06-05.


When was the best air quality at Norwalk, Ohio in the last 24 hrs?

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In the last 24 hrs, the best air quality in Norwalk, Ohio was observed at 01:00:00 on 2025-06-06.


What is the current air quality in Norwalk, Ohio?

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The current air quality in Norwalk, Ohio is 69, categorized as Moderate based on real-time data.


What pollutant is the most common in Norwalk, Ohio?

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The most common pollutant in Norwalk, Ohio is PM2.5.


What should I do if the air quality in Norwalk, Ohio is poor?

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If the air quality in Norwalk, Ohio is poor, consider staying indoors and wearing a mask to protect yourself.


What is the current concentration of PM2.5 in Norwalk, Ohio?

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The current PM2.5 concentration at Norwalk, Ohio is 19.025 μg/m3.


What is the current concentration of PM10 in Norwalk, Ohio?

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The current PM10 concentration at Norwalk, Ohio is 59.055 μg/m3.


What is the current concentration of carbon monoxide (CO) in Norwalk, Ohio?

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The current carbon monoxide (CO) concentration at Norwalk, Ohio is 0.313 ppm.


What is the current concentration of sulfur dioxide (SO2) in Norwalk, Ohio?

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The current sulfur dioxide (SO2) concentration at Norwalk, Ohio is 1.79 ppb.


What is the current concentration of ozone (O3) in Norwalk, Ohio?

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The current ozone (O3) concentration at Norwalk, Ohio is 26.363 ppm.


What is the current concentration of nitrogen dioxide (NO2) in Norwalk, Ohio?

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The current nitrogen dioxide (NO2) concentration at Norwalk, Ohio is 7.29 ppb.


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