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Current air quality index in Fort Lewis, Washington today

Stay updated with real-time air quality in Fort Lewis, 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)

22

Good

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Fort Lewis, Washington

Last updated: ... (Local time)

Major air pollutants in Fort Lewis, Washington

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

4.22 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

16.44 μg/m³

0

55

155

255

425

605+

Ozone (O3)

22.28 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.54 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

6.79 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

Low

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Fort Lewis, Washington

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Real-time air quality map: Monitor AQI near Fort Lewis, Washington




How accurate is Washington, USA air quality data?

The air quality data for Washington, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.


Frequently asked questions

How frequently does the air quality data for Fort Lewis, Washington get updated?

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Air quality updates for Fort Lewis, Washington are available every hour.


What time in the past 24 hours saw the poorest air quality in Fort Lewis, Washington?

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Fort Lewis, Washington experienced its worst air quality at 03:00:00, 2025-06-06.


When was air quality in Fort Lewis, Washington the best over the past 24 hours?

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The best air quality in Fort Lewis, Washington was observed at 12:00:00 on 2025-06-06.


What is the air quality in Fort Lewis, Washington right now?

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The air quality in Fort Lewis, Washington right now is Good, with an AQI of 22.


What pollutant is most frequently found in Fort Lewis, Washington?

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In Fort Lewis, Washington, PM2.5 is the most frequently found pollutant.


What can I do if the air quality in Fort Lewis, Washington is poor?

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When air quality in Fort Lewis, Washington is compromised, staying indoors and wearing a mask can reduce health risks.


What is the PM2.5 concentration in Fort Lewis, Washington right now?

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Fort Lewis, Washington currently has a PM2.5 concentration of 4.222 μg/m3.


What is the current level of PM10 in Fort Lewis, Washington?

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Fort Lewis, Washington currently has a PM10 concentration of 16.444 μg/m3.


What is the current level of carbon monoxide (CO) in Fort Lewis, Washington?

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The current carbon monoxide (CO) level in Fort Lewis, Washington is 0.184 ppm.


What is the current level of sulfur dioxide (SO2) in Fort Lewis, Washington?

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The current sulfur dioxide (SO2) concentration in Fort Lewis, Washington is 0.535 ppb.


What is the current level of ozone (O3) in Fort Lewis, Washington?

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Fort Lewis, Washington currently has an ozone (O3) concentration of 22.283 ppm.


What is the current level of nitrogen dioxide (NO2) in Fort Lewis, Washington?

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The current level of nitrogen dioxide (NO2) in Fort Lewis, Washington is 6.788 ppb.


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