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Real-time air quality index in SeaTac, Washington today

Stay updated with real-time air quality in SeaTac, Washington 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)

28

Good

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SeaTac, Washington

Last updated: ... (Local time)

Major air pollutants in SeaTac, Washington

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

5.39 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

22.57 μg/m³

0

55

155

255

425

605+

Ozone (O3)

29.75 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.15 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

11.61 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.18 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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SeaTac, Washington

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SeaTac, Washington air quality map: Stay updated on AQI near you




How accurate is Washington, USA air quality data?

Air quality and pollutant data for Washington, 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 Seatac, Washington?

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The air quality information for Seatac, Washington is updated every hour for accuracy.


What time in the last 24 hours was the air quality in Seatac, Washington at its worst?

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In the past 24 hours, the air quality in Seatac, Washington was at its worst at 02:00:00 on 2025-06-06.


When did Seatac, Washington experience the best air quality in the last 24 hours?

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In the last 24 hours, the best air quality in Seatac, Washington was observed at 12:00:00 on 2025-06-06.


What is the AQI in Seatac, Washington right now?

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As of now, the AQI in Seatac, Washington is 28, indicating Good conditions.


What is the most common type of pollution in Seatac, Washington?

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Seatac, Washington air has the highest levels of O3.


What should I do in case of poor air quality in Seatac, Washington?

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


What is the PM2.5 level in Seatac, Washington at the moment?

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PM2.5 levels in Seatac, Washington are currently 5.388 μg/m3.


What is the PM10 level in Seatac, Washington at the moment?

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The PM10 concentration in Seatac, Washington is 22.566 μg/m3 at the moment.


What is the carbon monoxide (CO) level in Seatac, Washington at the moment?

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The current carbon monoxide (CO) concentration in Seatac, Washington is 0.182 ppm.


What is the sulfur dioxide (SO2) level in Seatac, Washington at the moment?

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Currently, Seatac, Washington has a sulfur dioxide (SO2) concentration of 0.148 ppb.


What is the ozone (O3) level in Seatac, Washington at the moment?

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The current ozone (O3) level in Seatac, Washington at the moment is 29.752 ppm.


What is the nitrogen dioxide (NO2) level in Seatac, Washington at the moment?

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Nitrogen dioxide (NO2) level in Seatac, Washington at the moment is 11.61 ppb.


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