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Live air quality index in West Allis, Wisconsin today

Stay updated with real-time air quality in West Allis, Wisconsin 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)

124

Unhealthy for sensitive groups

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West Allis, Wisconsin

Last updated: ... (Local time)

Major air pollutants in West Allis, Wisconsin

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter2.5 (PM2.5)

45.08 μg/m³

0

12.1

35.5

55.5

250.5

500.5+

Particulate Matter10 (PM10)

174.18 μg/m³

0

55

155

255

425

605+

Ozone (O3)

50.69 ppb

0

55

71

86

201

201+

Sulfur Dioxide (SO2)

0.37 ppb

0

36

76

186

605

1005+

Nitrogen Dioxide (NO2)

3.62 ppb

0

54

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

0

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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West Allis, Wisconsin

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West Allis, Wisconsin air quality map: Track AQI near you




How accurate is Wisconsin, USA air quality data?

Air quality data and pollutant measurements for Wisconsin, 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 West Allis, Wisconsin updated?

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The air quality for West Allis, Wisconsin is updated every hour.


When was the worst air quality at West Allis, Wisconsin in the last 24 hrs?

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The worst air quality in West Allis, Wisconsin in the last 24 hours was observed at 09:00:00 on 2025-06-05.


When was the best air quality at West Allis, Wisconsin in the last 24 hrs?

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In the last 24 hrs, the best air quality in West Allis, Wisconsin was observed at 04:00:00 on 2025-06-05.


What is the current air quality in West Allis, Wisconsin?

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The current air quality in West Allis, Wisconsin is 124, categorized as Unhealthy for Sensitive Groups based on real-time data.


What pollutant is the most common in West Allis, Wisconsin?

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The most common pollutant in West Allis, Wisconsin is PM2.5.


What should I do if the air quality in West Allis, Wisconsin is poor?

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If the air quality in West Allis, Wisconsin is poor, consider staying indoors and wearing a mask to protect yourself.


What is the current concentration of PM2.5 in West Allis, Wisconsin?

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The current PM2.5 concentration at West Allis, Wisconsin is 45.076 μg/m3.


What is the current concentration of PM10 in West Allis, Wisconsin?

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The current PM10 concentration at West Allis, Wisconsin is 174.178 μg/m3.


What is the current concentration of carbon monoxide (CO) in West Allis, Wisconsin?

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The current carbon monoxide (CO) concentration at West Allis, Wisconsin is 0.29 ppm.


What is the current concentration of sulfur dioxide (SO2) in West Allis, Wisconsin?

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The current sulfur dioxide (SO2) concentration at West Allis, Wisconsin is 0.373 ppb.


What is the current concentration of ozone (O3) in West Allis, Wisconsin?

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The current ozone (O3) concentration at West Allis, Wisconsin is 50.686 ppm.


What is the current concentration of nitrogen dioxide (NO2) in West Allis, Wisconsin?

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The current nitrogen dioxide (NO2) concentration at West Allis, Wisconsin is 3.62 ppb.


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