Ohio Air Quality Pollutant Monitoring Page

Yesterday's Highest One-Hour Pollutant Levels

Note: Data for certain ozone sites are only available from March through the end of October.
(last updated on 06-16-2021)

Site Name (City)

Carbon Monoxide (ppm)

Sulfur Dioxide (ppb)

Ozone

(ppb)

Nitrogen Dioxide (ppb)

PM10

(UG/M3)

PM2.5

(UG/M3)

East HS (AKRON)--0------9.0
NIHF Stem MS (Akron)--1--------
Patterson Park (AKRON)----49------
Alliance (ALLIANCE)----47------
Batavia (BATAVIA)----47----6.2
Berea BOE (BEREA)----48------
Globe (Beverly)--1--------
Bowling Green (BOWLING GREEN)----49------
Brewster (Brewster)----45------
Canton (CANTON)----------7.4
Malone Univ (CANTON)----49------
Republic Steel (Canton)------------
Miami East HS (CASSTOWN)----39------
Centerburg WWTP (CENTERBURG)----46------
Guiding Hand (CHESHIRE)--0--------
Carthage (CINCINNATI)----------8.7
Cincinnati Near Road (CINCINNATI).5----25--44.9
Lower Price Hill (CINCINNATI)----------12.5
Sycamore (CINCINNATI)----46------
Taft NCore (CINCINNATI).0046--19.89.6
Cleveland Fire St13 (CLEVELAND)--1--------
District 6 (CLEVELAND)----46------
Galleria (CLEVELAND).4----------
GT Craig NCore (CLEVELAND).22457--7.8
St Theodosius (CLEVELAND)--0------8.5
Colerain (CLEVES)--044----11.3
Fairgrounds (COLUMBUS)--0--7----
Maple Canyon (COLUMBUS)----45------
Smoky Row Near Road (COLUMBUS).3----5--6.8
Conneaut (CONNEAUT)--046------
Cooley (CURTICE)----52------
Eastwood (DAYTON)----44------
Sinclair (DAYTON)----------6.2
Delaware (DELAWARE)----41------
Port Authority (EAST LIVERPOOL)--2--------
Eastlake (EASTLAKE)--347------
Mud Run (ENON)----40------
Sunny Farms West (Fostoria)--1--------
Hackney (HACKNEY)------------
Crawford Woods (HAMILTON)----47------
Heath (HEATH)----40------
ODOT Ironton (IRONTON)--043----15.0
Hopedale (JEWETT).5----------
Lake Rockwell (KENT)----45------
Kinsman Maintenance (KINSMAN)----47------
Chippewa (LAFAYETTE TWP)----47----6.9
Lebanon (LEBANON)----45----8.1
Lima (LIMA)--144----5.9
London (LONDON)----38------
Marietta WTP (MARIETTA)----39------
Mayfield (MAYFIELD HTS.)----46------
Amanda Elem (MIDDLETOWN)--3------12.6
Made (MIDDLETOWN)--2--------
Middletown Airport (MIDDLETOWN)----40------
Yankee (MIDDLETOWN)--2----68.714.5
Notre Dame (MUNSON)----49------
New Albany (NEW ALBANY)----45----7.6
Preble NCore (New Paris).1042----7.6
Harvard Yards (NEWBURGH HTS.)--5--------
Painesville (PAINESVILLE)--247----8.2
Reynoldsburg (REYNOLDSBURG)----46------
Shadyside (SHADYSIDE)--0--8----
Barr School (SHEFFIELD)----------7.3
Sheffield (SHEFFIELD)----45------
Springfield Fire St1 (SPRINGFIELD)----------7.5
Springfield Well Fd (SPRINGFIELD)----42------
Steubenville (STEUBENVILLE)--141----13.1
Collins Park WTP (TOLEDO)--0--------
Erie (TOLEDO)----49----9.7
TCSE (VIENNA)----48------
Laird Eng Bldg (WARREN)----------10.2
Cleveland Near Road (WARRENSVILLE HTS.).3----10--7.8
Waterville (WATERVILLE)----47------
Wilgus (WILGUS)----42------
Wilmington (WILMINGTON)----38------
Xenia (XENIA)----42------
Headstart (YOUNGSTOWN)----------8.0
Oakhill (YOUNGSTOWN)--044------

Data are not validated

Some of the ambient air quality standards are: