| county | PM10 | other counties in the trading area |
| Allen |
|
(none) |
| Ashtabula |
|
Lake ,
Geauga
|
| Belmont |
|
Jefferson
|
| Butler |
|
Hamilton ,
Warren ,
Montgomery
|
| Clark |
|
Miami ,
Montgomery ,
Greene ,
Madison
|
| Clermont |
|
Hamilton ,
Warren ,
Clinton
|
| Clinton |
|
Clermont ,
Warren ,
Greene
|
| Columbiana |
|
Jefferson ,
Mahoning
|
| Cuyahoga |
|
Lorain ,
Medina ,
Summit ,
Portage ,
Geauga ,
Lake
|
| Delaware |
|
Franklin ,
Licking ,
Knox
|
| Fairfield |
|
Franklin ,
Licking
|
| Franklin |
|
Madison ,
Delaware ,
Licking ,
Fairfield
|
| Geauga |
|
Cuyahoga ,
Summit ,
Portage ,
Ashtabula ,
Lake
|
| Greene |
|
Clark ,
Madison ,
Clinton ,
Warren ,
Montgomery ,
Miami
|
| Hamilton |
|
Butler ,
Warren ,
Clermont
|
| Jefferson |
|
Belmont ,
Columbiana
|
| Knox |
|
Delaware ,
Licking
|
| Lake |
|
Cuyahoga ,
Geauga ,
Ashtabula
|
| Licking |
|
Knox ,
Delaware ,
Franklin ,
Fairfield
|
| Lorain |
|
Cuyahoga ,
Medina
|
| Lucas |
|
Wood
|
| Madison |
|
Clark ,
Greene ,
Franklin
|
| Mahoning |
|
Trumbull ,
Columbiana
|
| Medina |
|
Lorain ,
Cuyahoga ,
Summit
|
| Miami |
|
Clark ,
Greene ,
Montgomery
|
| Montgomery |
|
Miami ,
Clark ,
Greene ,
Warren ,
Butler
|
| Portage |
|
Cuyahoga ,
Summit ,
Geauga
|
| Summit |
|
Medina ,
Cuyahoga ,
Geauga ,
Portage
|
| Trumbull |
|
Mahoning
|
| Warren |
|
Butler ,
Hamilton ,
Clermont ,
Clinton ,
Greene ,
Montgomery
|
| Washington |
|
(none) |
| Wood |
|
Lucas
|