According to a recent article in the Sacramento Business Journal:
Ratings of the 25 sneeziest cities were put out by the pharmaceutical company GlaxoSmithKline, trying to promote its Flonase Nasal Spray. Data came from allergy reports to health agencies.
People in unranked San Francisco, Modesto, Lake Tahoe and Redding can wipe those smirks off their faces. Pollen in the ranked cities can spread and affect allergy sufferers up to 400 miles away, according to the American Academy of Allergy, Asthma and Immunology.
The 25 worst metro areas, with their allergy specialties and percentage of population affected, are:
1. Charleston, S.C.; with oak, cedar, birch and grasses; 21.8 percent affected. 2. Houston; oak, ash, hickory, pecan, grasses; 26.9 percent.
3. Chicago; ash, oak, mulberry; 20.6 percent.
4. Fargo, N.D.; birch, oak, willow, ash; 23.3 percent.
5. Billings, Mont.; ash, cedar, poplar, cottonwood; 28.2 percent.
6. Tampa, Fla.; oak, pellitory weed, hickory, pecan; 21.8 percent.