Worst County for Fall Allergies in Every State

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Source: stockphoto52 / iStock

6. Connecticut: Fairfield County
> County seat: N/A
> Est. adults with asthma: 75,559
> Average fine particle concentration: 10.0 µg/m3 (1st of 08 CT counties)
> Population living in urban area: 95.4% (2nd of 08 CT counties)

Source: JERRYE and ROY KLOTZ MD / Wikimedia Commons

7. Delaware: New Castle County
> County seat: Wilmington
> Est. adults with asthma: 39,523
> Average fine particle concentration: 10.0 µg/m3 (1st of 03 DE counties)
> Population living in urban area: 95.4% (1st of 03 DE counties)

Source: Mwanner / Wikimedia Commons

8. Florida: Hillsborough County
> County seat: Tampa
> Est. adults with asthma: 75,195
> Average fine particle concentration: 7.1 µg/m3 (58th of 67 FL counties)
> Population living in urban area: 96.5% (9th of 67 FL counties)

Source: Thinkstock

9. Georgia: Fulton County
> County seat: Atlanta
> Est. adults with asthma: 70,671
> Average fine particle concentration: 12.0 µg/m3 (1st of 159 GA counties)
> Population living in urban area: 98.9% (5th of 159 GA counties)

Source: sorincolac / iStock

10. Hawaii: Honolulu County
> County seat: Honolulu
> Est. adults with asthma: 77,379
> Average fine particle concentration: 0.0 µg/m3 (. of 05 HI counties)
> Population living in urban area: 99.1% (1st of 05 HI counties)