September 22, 2020 (Investorideas.com Newswire) While lockdowns during the COVID-19 pandemic have brought about a host of issues, there have been several positive outcomes. In addition to limiting the spread of the virus, the lockdowns have resulted in better air quality due to decreased commercial activity and automobile traffic. However, the lifting of lockdowns and a recent surge of wildfires in Western and Mountain states may quickly reverse this trend, once again exposing millions of Americans to poor air quality.
According to data from the Environmental Protection Agency (EPA), prior to COVID-19, nearly one in four Americans resided in counties with poor air quality. While ozone-related pollutants are the most common cause of poor air quality, many Americans are also exposed to a variety of other common pollutants such as particle pollutants, sulfur dioxide, and lead.
While a large number of Americans are still living in places with unhealthy levels of air pollution, conditions have been improving in recent decades. Through EPA efforts and the passage of the Clean Air Act, the U.S. has seen gradual improvement in air quality and a decline in the emissions of common pollutants since 1970. CO2 emissions have also shown small declines since 2010. Such improvements have occurred even with steady increases in the gross domestic product, travel, total population, and energy consumption.
Still, air quality in many areas, especially in the Western U.S., does not meet national standards. In addition to causing environmental issues, poor air quality can have negative consequences for individual health, which can be particularly detrimental to those already suffering from certain health problems such as asthma and cardiovascular disease. Additionally, new research indicates that economically disadvantaged communities are more likely to face higher levels of pollution. Furthermore, while the U.S. has improved as a whole, the most polluted areas from 1980 are still among the most polluted today.
To identify metropolitan areas with the worst and best air quality, researchers from Filterbuy analyzed median Air Quality Index (AQI) values for 2019. These values, published annually by the EPA, are a measure of an area’s air pollution. Higher AQI values indicate that an area experiences higher pollution levels and lower air quality. For the purpose of this report, only metropolitan areas with at least 500,000 residents were included.
Here are the metropolitan areas with the worst and best air quality in the nation.
U.S. Metros With the Worst Air Quality
U.S. Metros With the Best Air Quality
For more information, a detailed methodology, and complete results, you can find the original report on Filterbuy’s website: https://filterbuy.com/resources/cities-with-worst-best-air-quality/
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