Worst County for Fall Allergies in Every State

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Source: Bagatar / Wikimedia Commons

31. North Carolina: Mecklenburg County
> County seat: Charlotte
> Est. adults with asthma: 62,577
> Average fine particle concentration: 11.3 µg/m3 (1st of 100 NC counties)
> Population living in urban area: 98.9% (1st of 100 NC counties)

Source: Andrew Filer from Seattle (ex-Minneapolis) / Wikimedia Commons

32. North Dakota: Dunn County
> County seat: Manning
> Est. adults with asthma: 296
> Average fine particle concentration: 4.4 µg/m3 (53rd of 53 ND counties)
> Population living in urban area: 0.0% (15th of 53 ND counties)

Source: Chris Light / Wikimedia Commons

33. Ohio: Geauga County
> County seat: Chardon
> Est. adults with asthma: 7,131
> Average fine particle concentration: 11.6 µg/m3 (33rd of 88 OH counties)
> Population living in urban area: 36.0% (66th of 88 OH counties)

Source: okchomeseller / Flickr

34. Oklahoma: Oklahoma County
> County seat: Oklahoma City
> Est. adults with asthma: 54,026
> Average fine particle concentration: 10.0 µg/m3 (9th of 77 OK counties)
> Population living in urban area: 93.7% (2nd of 77 OK counties)

Source: --b-- / Wikimedia Commons

35. Oregon: Clackamas County
> County seat: Oregon City
> Est. adults with asthma: 34,379
> Average fine particle concentration: 9.2 µg/m3 (2nd of 36 OR counties)
> Population living in urban area: 81.9% (5th of 36 OR counties)