New Report: Columbia Achieves Second Best Ever Result for Ozone Smog, Though Annual Particle Pollution Increases Slightly

American Lung Association’s 25th Annual “State of the Air” report highlights air quality and impacts on public health in the Columbia metro area and across the nation

The Columbia metro area was named 116th most polluted in the nation for ozone pollution, according to the American Lung Association’s 2024 “State of the Air” report, which was released today. This was a marked improvement from last year’s ranking of 75th worst for ozone pollution. While the metro area received a passing grade for year-round average level of particle pollution, it fell in ranking from 129th worst in the nation to 123rd worst. Nationally, the report found that more than 131 million people, or nearly four in ten people, in the U.S. live in counties that had unhealthy levels of ozone or particle pollution. 

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 Columbia still has work to do,” said Danna Thompson, Director of Advocacy for the American Lung Association in South Carolina. “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 investing in statewide electric vehicle infrastructure and calling on EPA to set long-overdue stronger national limits on ozone pollution.”

Ground-level Ozone Pollution in the Columbia 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 Columbia metro area ranked 116th worst in the nation for ozone 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 Richland county. This was better than the area's ranking in last year's report of 75th worst, with 1 day per year, a “C” grade. 

Particle Pollution in the Columbia metro area:
The report also tracked short-term spikes in particle pollution, which can be extremely dangerous and even deadly. The Columbia metro area ranked 105th 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—0.7 days per year, a “B” grade, in Lexington County. This was better than the area's ranking in last year's report of 100th worst, with 0.7 days per year, a “B” grade. 

For the year-round average level of particle pollution, the area’s worst county, Lexington county, South Carolina, received a passing grade for pollution levels below the federal standard that was recently updated by the United States Environmental Protection Agency. The Columbia metro area ranked 123rd worst in the nation. This was worse than the area's ranking in last year's report of 129th worst in the nation.

Beyond Columbia:

In addition to the Columbia metro area, other notable findings across South Carolina include:

  • The Charleston metro area ranked among the cleanest cities in the nation for ozone pollution for the fifth time ever.

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.

This legislative session the Lung Association expressed support for House Bill 3824, which allows electric vehicle charging stations to be eligible for existing tax credits. Because the transportation sector is a leading source of air pollution and carbon pollution, growing South Carolina’s electric vehicle infrastructure is critical to health today and tomorrow.

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.

For more information, contact:

Victoria O'Neill
(312) 273-5890
[email protected]

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