The State of the Air report includes a national air quality “report card” that assigns A-F grades to communities across the country. The report also ranks cities and counties most affected by the three most widespread types of pollution (ozone—or smog, annual particle pollution, and 24-hour particle pollution levels) and details trends for 900 counties over the past decade. We know that air pollution is a major threat to human health,” said Stephen J.
“Air pollution worsens asthma and is a direct cause of heart attacks, which makes people living with lung and heart disease especially vulnerable.” Low income people and some racial and ethnic groups often face greater risk from pollutants.
Some of the biggest sources of air pollution, including dirty power plants, dirty diesel engines and ocean-going vessels, also worsen global warming.
“The more we learn, the more urgent it becomes for us to take decisive action to make our air healthier,” added Nolan.
People living in some of these cities however, are breathing even dirtier air than what was reported in the Lung Association’s 2008 report. D.—ranked among the cleanest in all three air pollution categories covered in State of the Air.
Ozone Sixteen cities making this year’s 25 most ozone-polluted list experienced worsened ozone (smog) problems than last year’s report found.