Allergy-Proof Your Life

10 Best Big Cities for People With Asthma

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9. Portland, Maine

 • Population: 513,102
 • 2008 rank: n/a (too small to be considered)

Thanks to its cultural scene, low crime rate, and strong economy, Portland ranked number one on the 2009 Forbes magazine list of America’s Most Livable Cities.

People with asthma will find it livable, too. The city features good air quality and strict no-smoking laws in public places. (Tobacco smoke is a potent asthma trigger that can bring on an asthma attack in some people.)

Next: 8. San Francisco, California