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Air Quality Index in Phoenix, AZ

Phoenix is a large city known for its hot, dry climate and beautiful desert landscapes. Phoenix's air quality can sometimes be a concern, especially during the summer months. The city faces pollution from car emissions, industrial activities, and dust.

Air Quality Index

February 16, 2025
Low
Good
Good

Air quality is ideal, with minimal or no risk to health.

NO2
Good
PM2.5
Good
M10
Good
O3
Good

Air Quality Index

February 17, 2025
Low
Moderate
Moderate

Members of sensitive groups, such as children, the elderly, and individuals with respiratory conditions, may experience adverse health effects. The general population is less likely to be affected.

NO2
Good
PM2.5
Good
M10
Good
O3
Moderate

Air Quality Index

February 18, 2025
Low
Moderate
Moderate

Members of sensitive groups, such as children, the elderly, and individuals with respiratory conditions, may experience adverse health effects. The general population is less likely to be affected.

NO2
Good
PM2.5
Good
M10
Good
O3
Moderate

Air Quality Index

February 19, 2025
Low
Moderate
Moderate

Members of sensitive groups, such as children, the elderly, and individuals with respiratory conditions, may experience adverse health effects. The general population is less likely to be affected.

NO2
Good
PM2.5
Good
M10
Good
O3
Moderate

Air Quality Index

February 20, 2025
Low
Poor
Poor

Everyone may begin to experience health effects, and sensitive groups may face more serious issues.

NO2
Good
PM2.5
Good
M10
Good
O3
Moderate

Air Quality Index

February 21, 2025
Low
Moderate
Moderate

Members of sensitive groups, such as children, the elderly, and individuals with respiratory conditions, may experience adverse health effects. The general population is less likely to be affected.

NO2
Good
PM2.5
Good
M10
Good
O3
Moderate

5-Day Air Quality Index Forecast in Phoenix, AZ

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Tips to Protect Yourself from Unhealthy Air Quality in Phoenix, AZ

When the air quality is poor, try to stay inside as much as possible. Keep windows and doors closed to keep polluted air out. Using an air purifier indoors can help improve air quality.

Avoid outdoor exercise or any strenuous activities when the air quality is bad. If you need to go outside, do it during times when pollution levels are lower, like early morning or late evening.

Keep track of the air quality index and wear a mask designed for air pollution (such as an N95 mask) when you go outside if the AQI is high.

FAQ

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

    The AQI in Phoenix is typically the worst during the summer months, from May to September. This is when high temperatures combine with increased ozone levels, dust storms, and vehicle emissions to create poor air quality. The worst pollution levels often occur in the late afternoon and early evening.

  • What are common pollutants that impact AQI in Phoenix?

    The main pollutants in Phoenix are ozone, particulate matter (PM10), nitrogen dioxide (NO2), and carbon monoxide (CO). Ozone forms when sunlight reacts with car emissions and industrial pollution, especially in hot weather. PM10 is dust from the desert, construction, and vehicles, which is common during dust storms. NO2 comes from cars and industries, while CO is released by vehicles. These pollutants all contribute to poor air quality, especially in the summer.

  • Are there specific areas in Phoenix with better AQI?

    Areas in Phoenix that are farther from highways and industrial zones may have slightly better air quality. Higher elevation areas, such as those near the Phoenix Mountain Preserve, may also experience cleaner air compared to areas near busy roads or industrial areas, where pollution tends to be higher.