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Live air quality index in Decatur, Alabama today

Stay updated with real-time air quality in Decatur, Alabama 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)

49

Good

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Decatur, Alabama

Last updated: ... (Local time)

Major air pollutants in Decatur, Alabama

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

9.21 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

40.85 μg/m³

0

55

155

255

425

605+

Ozone (O3)

6.81 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.57 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

11.79 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.47 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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Decatur, Alabama air quality map: Track AQI near you




How accurate is Alabama, USA air quality data?

Air quality data and pollutant measurements for Alabama, 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 Decatur, Alabama updated?

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The air quality for Decatur, Alabama is updated every hour.


When was the worst air quality at Decatur, Alabama in the last 24 hrs?

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The worst air quality in Decatur, Alabama in the last 24 hours was observed at 12:00:00 on 2025-06-01.


When was the best air quality at Decatur, Alabama in the last 24 hrs?

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In the last 24 hrs, the best air quality in Decatur, Alabama was observed at 12:00:00 on 2025-06-02.


What is the current air quality in Decatur, Alabama?

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The current air quality in Decatur, Alabama is 49, categorized as Good based on real-time data.


What pollutant is the most common in Decatur, Alabama?

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The most common pollutant in Decatur, Alabama is PM2.5.


What should I do if the air quality in Decatur, Alabama is poor?

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


What is the current concentration of PM2.5 in Decatur, Alabama?

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The current PM2.5 concentration at Decatur, Alabama is 9.212 μg/m3.


What is the current concentration of PM10 in Decatur, Alabama?

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The current PM10 concentration at Decatur, Alabama is 40.853 μg/m3.


What is the current concentration of carbon monoxide (CO) in Decatur, Alabama?

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The current carbon monoxide (CO) concentration at Decatur, Alabama is 0.471 ppm.


What is the current concentration of sulfur dioxide (SO2) in Decatur, Alabama?

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The current sulfur dioxide (SO2) concentration at Decatur, Alabama is 0.572 ppb.


What is the current concentration of ozone (O3) in Decatur, Alabama?

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The current ozone (O3) concentration at Decatur, Alabama is 6.812 ppm.


What is the current concentration of nitrogen dioxide (NO2) in Decatur, Alabama?

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The current nitrogen dioxide (NO2) concentration at Decatur, Alabama is 11.786 ppb.


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