MARICOPA COUNTY AZ: Ozone High Pollution Advisory Issued for Saturday, September 9, 2023

STATE OF THE AIR REPORT 2023 

PHOENIX-MESA AZ Ranks #5 Most Polluted Cities by Ozone Pollution

Ranking

Ranked 5 worst for high ozone days out of 227 metropolitan areas

• Ranked 13 worst for 24-hour particle pollution out of 223 metropolitan areas
• Ranked 7 worst for annual particle pollution out of 200 metropolitan areas 

High Ozone Days

Ozone air pollution, sometimes known as smog, is one of the most widespread pollutants in the United States. 

• It is a powerful lung irritant. 
• When inhaled into the lungs, it reacts with the delicate lining of the airways, causing inflammation and other damage that can impact multiple body systems. 
• Ozone exposure can also shorten lives.

Particle Pollution - 24 Hour

Particle pollution is a deadly and growing threat to public health in communities around the country. 

• The more researchers learn about the health effects of particle pollution, the more dangerous it is recognized to be. 
• Short-term spikes in particle pollution that last from a few hours to a few days can kill. 
• Most premature deaths are from respiratory and cardiovascular causes. 
• Spikes in particle pollution also have many other harmful effects, ranging from decreased lung function to heart attacks.

The Arizona Department of Environmental Quality has issued an Ozone High Pollution Advisory for Saturday, September 9, 2023.

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