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Port Arthur, Texas live air quality index now

Stay updated with real-time air quality in Port Arthur, Texas 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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Port Arthur, Texas

Last updated: ... (Local time)

Major air pollutants in Port Arthur, Texas

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

8.67 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

39.52 μg/m³

0

55

155

255

425

605+

Ozone (O3)

12.33 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.60 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

1.78 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.19 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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Port Arthur, Texas

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Port Arthur, Texas air quality map: Track AQI near you




How accurate is Texas, USA air quality data?

Air quality data and pollutant measurements for Texas, 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 Port Arthur, Texas updated?

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The air quality for Port Arthur, Texas is updated every hour.


When was the worst air quality at Port Arthur, Texas in the last 24 hrs?

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The worst air quality in Port Arthur, Texas in the last 24 hours was observed at 11:00:00 on 2025-07-19.


When was the best air quality at Port Arthur, Texas in the last 24 hrs?

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In the last 24 hrs, the best air quality in Port Arthur, Texas was observed at 03:00:00 on 2025-07-19.


What is the current air quality in Port Arthur, Texas?

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The current air quality in Port Arthur, Texas is 38, categorized as Good based on real-time data.


What pollutant is the most common in Port Arthur, Texas?

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The most common pollutant in Port Arthur, Texas is PM2.5.


What should I do if the air quality in Port Arthur, Texas is poor?

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If the air quality in Port Arthur, Texas is poor, consider staying indoors and wearing a mask to protect yourself.


What is the current concentration of PM2.5 in Port Arthur, Texas?

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The current PM2.5 concentration at Port Arthur, Texas is 7.497 μg/m3.


What is the current concentration of PM10 in Port Arthur, Texas?

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The current PM10 concentration at Port Arthur, Texas is 34.706 μg/m3.


What is the current concentration of carbon monoxide (CO) in Port Arthur, Texas?

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The current carbon monoxide (CO) concentration at Port Arthur, Texas is 0.189 ppm.


What is the current concentration of sulfur dioxide (SO2) in Port Arthur, Texas?

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The current sulfur dioxide (SO2) concentration at Port Arthur, Texas is 0.494 ppb.


What is the current concentration of ozone (O3) in Port Arthur, Texas?

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The current ozone (O3) concentration at Port Arthur, Texas is 10.111 ppm.


What is the current concentration of nitrogen dioxide (NO2) in Port Arthur, Texas?

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The current nitrogen dioxide (NO2) concentration at Port Arthur, Texas is 3.126 ppb.


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