The 100 worst cities for allergies and asthma.

1 Knoxville, TN
2 Little Rock, AR
3 St. Louis, MO
4 Madison, WI
5 Louisville, KY
6 Memphis, TN
7 Toledo, OH
8 Kansas City, MO
9 Nashville, TN
10 Hartford, CT
11 Buffalo-Niagra Fall, NY
12 Johnson City, TN
13 Allentown-Bethlehem-Easton, PA
14 Springfield, MA
15 Pittsburgh, PA
16 Milwaukee-Waukesha, WI
17 Chattanooga, TN
18 Detroit, MI
19 Dayton-Springfield, OH
20 Indianapolis, IN
21 Columbus, OH
22 Fresno, CA
23 Wichita, KS
24 Harrisburg-Lebanon-Carlisle, PA
25 Lexington, KY
26 Albany-Schenectady-Troy, NY
27 Philadelphia, PA
28 Greensboro-Winston Salem-High Point, NC
29 Oklahoma City, OK
30 Syracuse, NY
31 Lansing-East Lansing, MI
32 Scranton-Wilkes Barre-Hazleton, PA
33 New York, NY
34 Columbia, SC
35 Grand Rapids-Muskegon-Holland, MI
36 Birmingham, AL
37 Jackson, MS
38 Omaha, NE
39 Minneapolis-St. Paul, MN-WI
40 Kalamazoo-Battle Creek, MI
41 Tulsa, OK
42 Cincinnati, OH
43 Des Moines, IA
44 Baltimore, MD
45 Phoenix-Mesa, AZ
46 Charlotte-Gastonia-Rock Hill, NC-SC
47 Atlanta, GA
48 Canton-Massillon, OH
49 Raleigh-Durham-Chapel Hill, NC
50 Washington, DC
51 Cleveland-Lorain-Elyria, OH
52 Richmond-Petersburg,VA
53 Albuquerque, NM
54 Greenville-Spartanburg-Anderson, SC
55 Rochester, NY
56 Chicago, IL
57 Youngstown-Warren, OH
58 Fort Wayne, IN
59 Boston, MA
60 Augusta-Aiken, GA
61 Bakersfield, CA
62 Tucson, AZ
63 Las Vegas, NV
64 Charleston-North Charleston, SC
65 Modesto, CA
66 Mobile, AL
67 Lancaster, PA
68 Spokane, WA
69 Baton Rouge, LA
70 New Orleans, LA
71 Orlando, FL
72 Dallas-Fort Worth, TX
73 Denver, CO
74 Salt Lake City-Ogden, UT
75 Colorado Springs, CO
76 Tampa-St. Petersburg-Clearwater, FL
77 Norfolk-Virginia Beach-Newport News, VA
78 Jacksonville, FL
79 Sacramento, CA
80 Austin-San Marcos, TX
81 San Antonio, TX
82 Stockton-Lodi, CA
83 Boise City, ID
84 Providence, RI
85 Los Angles-Long Beach, CA
86 Mcallen-Edinburg-Mission, TX
87 El Paso, TX
88 Sarasota-Bradenton, FL
89 Pensacola, FL
90 Fort Meyers-Cape Coral, FL
91 Houston-Galveston-Brazoria, TX
92 San Diego, CA
93 Lakeland-Winter Haven, FL
94 Melbourne-Titusville-Palm Bay, FL
95 Seattle-Bellevue-Everett, WA
96 Portland, OR
97 West Palm Beach-Boca Raton, FL
98 Daytona Beach, FL
99 Miami, FL
100 San Francisco-Oakland-San Jose, CA

[source: Asthma and Allergy Foundation of America]