American Lung Association Gives Pittsburgh Failing Grade For Poor Air Quality

L.A. ranked worst in ozone pollution again report says

Metro Phoenix's air quality greatly deteriorated over the past year, according to a new study.

The American Lung Association puts together this report every year and Ellen Penrod, the executive director for the American Lung Association in Colorado, says ozone has an impact on our lungs.

They say four in 10 Americans live in counties that have air with unhealthy levels of "particle pollution" or ozone.

The report also found, "that an increasing number of Americans-more than 4 in 10-lived with unhealthy air quality, placing their health and lives at risk".

The American Lung Association released its "State of the Air" report on Wednesday and both cities ranked in the top 20 for cleanest U.S. Cities for Year-round Particle Pollution. Los Angeles-Long Beach topped the list, while the San Jose-San Francisco-Oakland area came in eighth.

"This follows the nationwide trend, showing progress in reducing year-round levels of particle pollution", the ALA said in a statement.

But climate-change experts are concerned by the Trump Administration's rollbacks to global warming regulations.

Multnomah County scored a C for particle pollution.

Numerous cities with the most people at risk were located in California.

But over the same time period, the report also found the the Valley recorded its best-ever levels for fine particle pollution, or, rather, soot.

"Ozone especially harms children, older adults and those with asthma and other lung diseases", said Strother.

The report cites vehicle transportation and wildfires as two of the biggest sources of air pollution in general.

Balmes said the Valley is "particularly vulnerable" to start with, and is now threatened further by increased wildfire danger and warmer temperatures.

The findings add "to the evidence that a changing climate is making it harder to protect human health", according to the report.

Only six cities qualified for Cleanest US Cities: Bangor, Maine; Burlington-South Burlington, Vermont; Honolulu, Hawaii; Lincoln-Beatrice, Nebraska; Palm Bay-Melbourne-Titusville, Florida; and Wilmington, North Carolina.

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