Irving of Dallas county was the second most polluted city in Texas, trailing Longview by just 0.2 μg/m³. Exposure to PM2.5 has been associated with cardiovascular and respiratory disease, cancer, and early death 2.Īccording to the World Air Quality Report, the city of Dallas ranked fourth in the state of Texas for PM2.5 pollution in 2019. Due to its very small size, PM2.5 can remain suspended in the air for long periods of time and penetrate the lungs into the bloodstream when inhaled, causing far-reaching health effects. These particles include airborne dust, dirt, soot, smoke, chemicals, and metals, among others.
PM2.5 is the term for airborne particles measuring 2.5 micrometers or less. More up to date information on recent air quality readings will be available further below in the article. A report by the Environment Texas Research and Policy Center found that the Dallas-Fort Worth area experienced 106 days of poor air quality that exceeded “good” AQI standards 1. In 2019, Dallas’s annual air quality index level was rated ‘moderate’, posing some risk to sensitive groups. As a result, nearly 1.5 million residents deemed ‘sensitive individuals’, including children, the elderly, and those with heart and lung disease were at heightened risk for experiencing adverse health effects. In 2019, Dallas failed to meet nationally mandated attainment levels for 24-hour PM2.5 pollution, ozone days, and annual PM2.5 pollution. Dallas is among the most polluted cities in the United States for both PM2.5 and ozone air pollution.
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