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Live air quality index in Altoona, Pennsylvania today

Stay updated with real-time air quality in Altoona, Pennsylvania 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)

56

Moderate

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Altoona, Pennsylvania

Last updated: ... (Local time)

Major air pollutants in Altoona, Pennsylvania

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

12.13 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

23.34 μg/m³

0

55

155

255

425

605+

Ozone (O3)

15.83 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.45 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

3.04 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.21 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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How accurate is Pennsylvania, USA air quality data?

Air quality and pollutant data for Pennsylvania, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.


Frequently asked questions

How often is air quality information updated for Altoona, Pennsylvania?

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The air quality information for Altoona, Pennsylvania is updated every hour for accuracy.


What time in the last 24 hours was the air quality in Altoona, Pennsylvania at its worst?

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In the past 24 hours, the air quality in Altoona, Pennsylvania was at its worst at 02:00:00 on 2025-07-29.


When did Altoona, Pennsylvania experience the best air quality in the last 24 hours?

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In the last 24 hours, the best air quality in Altoona, Pennsylvania was observed at 02:00:00 on 2025-07-29.


What is the AQI in Altoona, Pennsylvania right now?

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As of now, the AQI in Altoona, Pennsylvania is 54, indicating Moderate conditions.


What is the most common type of pollution in Altoona, Pennsylvania?

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Altoona, Pennsylvania air has the highest levels of PM2.5.


What should I do in case of poor air quality in Altoona, Pennsylvania?

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Poor air quality in Altoona, Pennsylvania means it's advisable to stay indoors and wear a mask for your protection.


What is the PM2.5 level in Altoona, Pennsylvania at the moment?

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PM2.5 levels in Altoona, Pennsylvania are currently 11.419 μg/m3.


What is the PM10 level in Altoona, Pennsylvania at the moment?

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The PM10 concentration in Altoona, Pennsylvania is 47.297 μg/m3 at the moment.


What is the carbon monoxide (CO) level in Altoona, Pennsylvania at the moment?

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The current carbon monoxide (CO) concentration in Altoona, Pennsylvania is 0.228 ppm.


What is the sulfur dioxide (SO2) level in Altoona, Pennsylvania at the moment?

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Currently, Altoona, Pennsylvania has a sulfur dioxide (SO2) concentration of 3.214 ppb.


What is the ozone (O3) level in Altoona, Pennsylvania at the moment?

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The current ozone (O3) level in Altoona, Pennsylvania at the moment is 32.784 ppm.


What is the nitrogen dioxide (NO2) level in Altoona, Pennsylvania at the moment?

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Nitrogen dioxide (NO2) level in Altoona, Pennsylvania at the moment is 3.906 ppb.


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