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Live air quality index in Cape Girardeau, Missouri today

Stay updated with real-time air quality in Cape Girardeau, Missouri 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)

66

Moderate

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Cape Girardeau, Missouri

Last updated: ... (Local time)

Major air pollutants in Cape Girardeau, Missouri

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

17.11 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

84.26 μg/m³

0

55

155

255

425

605+

Ozone (O3)

34.12 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

1.71 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

11.56 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.30 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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Cape Girardeau, Missouri

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Cape Girardeau, Missouri air quality map: Real-time AQI near you




How accurate is Missouri, USA air quality data?

Air quality measurements for Missouri, 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.


Frequently asked questions

How frequently is the air quality data for Cape Girardeau, Missouri updated?

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Air quality data for Cape Girardeau, Missouri is updated on an hourly basis.


When did Cape Girardeau, Missouri experience the worst air quality in the last 24 hours?

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The worst air quality in Cape Girardeau, Missouri was recorded at 12:00:00 on 2025-06-04.


When did Cape Girardeau, Missouri have its best air quality in the last 24 hours?

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The best air quality in Cape Girardeau, Missouri was recorded at 03:00:00 on 2025-06-04.


What is the real-time air quality index for Cape Girardeau, Missouri?

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The real-time air quality index in Cape Girardeau, Missouri is 66, currently categorized as Moderate.


Which pollutant is found most often in Cape Girardeau, Missouri?

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The most common pollutant in Cape Girardeau, Missouri is PM2.5.


What can I do if the air quality in Cape Girardeau, Missouri is poor?

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If the air quality in Cape Girardeau, Missouri is poor, limit outdoor activities and use a mask to safeguard your health.


What are the current PM2.5 levels in Cape Girardeau, Missouri?

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The measured PM2.5 levels in Cape Girardeau, Missouri at present are 17.11 μg/m3.


What are the current PM10 levels at Cape Girardeau, Missouri?

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The current PM10 levels in Cape Girardeau, Missouri are 84.258 μg/m3.


What are the current carbon monoxide (CO) levels at Cape Girardeau, Missouri?

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The current carbon monoxide (CO) level in Cape Girardeau, Missouri is 0.299 ppm.


What are the current sulfur dioxide (SO2) levels at Cape Girardeau, Missouri?

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The current sulfur dioxide (SO2) levels in Cape Girardeau, Missouri are 1.711 ppb.


What are the current ozone (O3) levels at Cape Girardeau, Missouri?

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The current ozone (O3) levels at Cape Girardeau, Missouri is 34.123 ppm.


What are the current nitrogen dioxide (NO2) levels at Cape Girardeau, Missouri?

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The current nitrogen dioxide (NO2) levels at Cape Girardeau, Missouri is 11.557 ppb.


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