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Air Quality Index in Milwaukee, WI

Milwaukee's air quality index generally falls within the "good" category indicating minimal health risks. However, the city experiences occasional high pollution days, particularly during summer months when ozone levels can become unhealthy. In the winter, cool air inversions can trap pollutants, leading to elevated AQI readings.

Air Quality Index

February 16, 2025
Low
Fair
Fair

Air quality is acceptable, but some individuals, particularly those unusually sensitive to air pollution, may experience minor health effects.

NO2
Good
PM2.5
Good
M10
Good
O3
Fair

Air Quality Index

February 17, 2025
Low
Fair
Fair

Air quality is acceptable, but some individuals, particularly those unusually sensitive to air pollution, may experience minor health effects.

NO2
Good
PM2.5
Good
M10
Good
O3
Fair

Air Quality Index

February 18, 2025
Low
Fair
Fair

Air quality is acceptable, but some individuals, particularly those unusually sensitive to air pollution, may experience minor health effects.

NO2
Good
PM2.5
Good
M10
Good
O3
Fair

Air Quality Index

February 19, 2025
Low
Fair
Fair

Air quality is acceptable, but some individuals, particularly those unusually sensitive to air pollution, may experience minor health effects.

NO2
Good
PM2.5
Good
M10
Good
O3
Fair

Air Quality Index

February 20, 2025
Low
Fair
Fair

Air quality is acceptable, but some individuals, particularly those unusually sensitive to air pollution, may experience minor health effects.

NO2
Good
PM2.5
Good
M10
Good
O3
Fair

Air Quality Index

February 21, 2025
Low
Fair
Fair

Air quality is acceptable, but some individuals, particularly those unusually sensitive to air pollution, may experience minor health effects.

NO2
Good
PM2.5
Good
M10
Good
O3
Fair

5-Day Air Quality Index Forecast in Milwaukee, WI

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Tips to Protect Yourself from Unhealthy Air Quality in Milwaukee, WI

Stay informed by monitoring local air quality updates to help you plan your outdoor activities and avoid exposure to harmful pollutants.

When air quality is poor, wearing a mask designed for air filtration can reduce your exposure to harmful particles. N95 or KN95 masks offer the best protection against pollutants like dust and ozone.

Keep indoor air clean by using air purifiers, especially ones with HEPA filters. Also, avoid using products that emit strong fumes, like cleaning supplies or candles, and ensure proper ventilation in your home.

FAQ

Frequently Asked Questions
  • When is AQI usually the worst in Milwaukee?

    AQI in Milwaukee tends to be worst during the summer months, particularly in June through August, due to high ozone levels. Winter months, from November to February, can also see poor air quality from temperature inversions trapping pollutants.

  • What are common pollutants that impact AQI in Milwaukee?

    Common pollutants affecting Milwaukee's AQI include ground-level ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide (NO2), and sulfur dioxide (SO2). These pollutants often stem from vehicle emissions, industrial activity, and weather patterns.

  • Are there specific areas in Milwaukee with better AQI?

    Areas further from industrial zones and high-traffic areas generally have better air quality. Neighborhoods near parks and green spaces such as the Milwaukee County Parks often experience lower levels of pollution.