New Report: Charleston Metro Area Continues to Rank Among U.S. Cleanest Cities for Ozone Pollution; Daily Measure of Particle Pollution Unchanged but Year-Round Level Again Increases

For the second year in a row, the Charleston-Huntington-Ashland, WV-OH-KY metro area is ranked among the nation’s cleanest cities for ozone pollution and receives an A grade for the measure, according to the American Lung Association’s 2024 “State of the Air” report, released today. The metro area ranked 124th in the nation for the daily measure of particle pollution, with its B grade remaining unchanged from last year’s report. Year-round particle pollution again increases and ranks the area 111th worst in the nation.   

The Lung Association’s 25th annual “State of the Air” report grades exposure to unhealthy levels of ground-level ozone air pollution, annual particle pollution and short-term spikes in particle pollution over a three-year period. This year’s report includes air quality data from 2020-2022 and is updated to reflect the new annual particle pollution standard that the U.S. Environmental Protection Agency (EPA) finalized in February.

“In the 25 years that the American Lung Association has been doing our ‘State of the Air’ report, we have seen incredible improvement in the nation’s air quality. Unfortunately, more than 131 million people still live in places with unhealthy levels of air pollution, and the Charleston metro area still has work to do,” said Aleks Casper, Director of Advocacy for the American Lung Association. “Climate change is making air pollution more likely to form and more difficult to clean up. so there are actions we can and must take to improve air quality, including calling on EPA to set long-overdue stronger national limits on ozone pollution.”

Ground-level Ozone Pollution in the Charleston metro area:

The “State of the Air” report looked at levels of ozone “smog,” the air pollutant affecting the largest number of people in the United States. The Charleston metro area ranked among the nation's cleanest cities for ozone pollution. The ranking was based on the area’s worst county’s average number of unhealthy days—0 days per year, an A grade, in all six counties monitored for this pollutant (Cabell and Kanawha, West Virginia, Boyd, Carter, and Greenup, Kentucky, and Lawrence County, Ohio). This was comparable to the area's ranking in last year's report among the nation's cleanest cities, with 0 days per year, an A grade. 

Particle Pollution in the Charleston-Huntington-Ashland metro area:

The report also tracked short-term spikes in particle pollution, which can be extremely dangerous and even deadly. The Charleston metro area ranked 124th worst in the nation for short-term particle pollution. The ranking was based on the area’s worst county’s average number of unhealthy days—0.3 days per year, a B grade, in Boyd County, KY. This was better than the area's ranking in last year's report of 118th worst, also with 0.3 days per year, a B grade. 

For the year-round average level of particle pollution, the area’s worst county, Lawrence County, Ohio, received a passing grade for pollution levels below the federal standard that was recently updated by the United States Environmental Protection Agency. The Charleston metro area ranked 111th worst in the nation. This was worse than the area's ranking in last year's report of 123rd worst in the nation.

In addition to the Charleston metro area metro area, other notable findings across Virgina include:

• For first time ever, with improvement to A grade for ozone smog, the Johnson City-Kingsport-Bristol, TN-VA metro area ranks among the cleanest cities for all three pollutant measures.
• The Richmond metro area continues to post best-ever results (a B grade) for ozone smog for fourth consecutive year, though unchanged for most recent report; daily measure of particle pollution remained unchanged at B grade, but worse than a past decade of reports that placed area among nation’s cleanest.
• The Virginia Beach-Norfolk, VA-NC metro area ranks among cleanest cities in the U.S. for daily measure of particle pollution for ninth consecutive year; ozone smog earns a B grade, but worse than the last three reports that placed metro area among cleanest cities list.

The “State of the Air” report found that nationally, more than 131 million people live in an area that received a failing grade for at least one measure of air pollution, and 43.9 million people live in areas with failing grades for all three measures. In the three years covered by this report, individuals in the U.S. experienced the highest number of days when particle pollution reached “very unhealthy” and “hazardous” levels in the history of reporting the “State of the Air.” Communities of color are disproportionately exposed to unhealthy air and are also more likely to be living with one or more chronic conditions that make them more vulnerable to air pollution, including asthma, diabetes and heart disease. The report found that a person of color in the U.S. is more than twice as likely as a white individual to live in a community with a failing grade on all three pollution measures.

Both ozone and particle pollution can cause premature death and other serious health effects such as asthma attacks, heart attacks, strokes, preterm births and impaired cognitive functioning later in life. Particle pollution can also cause lung cancer.

EPA recently finalized new air pollution rules that will help clean up particle pollution and address climate change. Now, the Lung Association is urging EPA to set long overdue stronger national limits on ozone pollution. Stronger limits would help people protect themselves and drive cleanup of polluting sources across the country. See the full report results and sign the petition at Lung.org/SOTA.