America’s Most Polluted Cities
The counties and metro areas with the nation’s poorest air quality.
Worst Cities For Short-Term Particle Pollution
Worst Cities For Year-Round Particle Pollution
Worst Cities For Ozone Pollution
The annual report–State of the Air 2009–found that six in 10 Americans live in counties where ozone or particle pollution has reached dangerous levels. Both types of pollution can be deadly and have been linked to worsening respiratory conditions like asthma, emphysema and bronchitis, and there is evidence that particle pollution increases risk of heart attacks and strokes.
Read more via America’s Most Polluted Cities – Forbes.com.