Posted by 
If you’ve been wondering why you’ve been coughing and sneezing unexpectedly, perhaps this article from WebMD might explain it…
Plenty of traffic, refineries, power plants, and warm temperatures help fuel smog in this town. The cowboy mecca has long been known as a top ozone offender. It’s teetered back and forth in the middle of this dirty cities list for years. That’s bad news for the estimated 840,000 residents who have asthma or chronic obstructive pulmonary disease (COPD).
via Worst Smog Cities Slideshow: Air Pollution, Ozone, and Asthma.
