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Data Quality Dashboard
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Choose a PQAO
Akron Regional Air Pollution Control Agency
Al Dept Of Env Mgt
Alaska Department Of Environmental Conservation
Albuquerque Environmental Health Department, Air Quality Division
Allegheny County, PA Health Department
Arizona Department Of Environmental Quality
Arkansas Department of Energy and Environment
Bay Area Air Quality Management District
California Air Resources Board
Canton City Health Department Air Pollution Control
Central Ohio PQAO
Chattanooga-Hamilton County Air Pollution Control
City of Huntsville, Div of Natural Resources
City of Toledo, Environmental Services Division
Clark County, NV DES
Cleveland Air Pollution Control Agency
Colorado Department of Public Health And Environment
Connecticut Department of Environmental Protection
Cook County Department of Environmental Control
Dayton Regional Air Pollution Control Agency
Delaware Dept Natural Resources and Environmental Control
Department of Energy & Environment, District of Columbia
Eastern Band Of Cherokee Indians of North Carolina
Florida Department of Environmental Protection (FDEP)
Forsyth County Environmental Affairs Department
Georgia Air Protection Branch Ambient Monitoring Program
Hamilton County Department Of Environmental Services
Hawaii State Department Of Health
Ho-Chunk Nation of Wisconsin
Idaho Department Of Health And Welfare-Environment Division
Illinois Environmental Protection Agency
Indiana Depart Of Environ Management/Office Of Air Quality
Jefferson County, AL Department Of Health
Kansas Department Of Health And Environment
Kentucky Division For Air Quality
Knox County Department Of Air Pollution Control
La Posta Band of Dieguento Mission Indians of La Posta Indian Reservation, CA
Lake County Health Department Division Air Pollution Control
Linn County Health Department
Louisville, KY Metro Air Pollution Control District
MT Dept Of Environmental Quality, Air Quality Division
Mahoning-Trumbull Air Pollution Control Agency
Maine D.E.P. Bureau Of Air Quality Control, Augusta
Maricopa County Air Quality
Maryland Department of the Environment
Mass Dept Environmental Protection-Div Air Quality Control
Mecklenburg County Air Quality
Memphis-Shelby County Health Department
Metropolitan Health Department/Nashville & Davidson County
Michigan Dept Of Environment, Great Lakes, and Energy-Air Quality Division
Minnesota Pollution Control Agency, Division Of Air Quality
Mississippi DEQ, Office Of Pollution
Missouri Laboratory Services Program
Morongo Band of Mission Indians, CA
Navajo Nation, AZ, NM, UT
Nebraska Department Of Environmental Control
Nevada Division Of Environmental Protection
New Hampshire Air Resources Agency
New Jersey State Department Of Environmental Protection
New Mexico Environment Department
New York State Department Of Environmental Conservation
North Carolina Dept Of Environmental Quality
North Dakota DEQ
North East Ohio PQAO
Ohio EPA, Central District Office
Ohio EPA, Northeast District Office
Ohio EPA, Northwest District Office
Ohio EPA, Southeast District Office
Oklahoma Dept. Of Environmental Quality Air Quality Division
Omaha-Douglas County Health Department
Oregon Department Of Environmental Quality
Pechanga Band of Luiseno Mission Indians of Pechanga Reservation, CA
Pennsylvania Department Of Environmental Protection
Philadelphia Air Management Services
Pima County Department of Environmental Quality
Pinal County APCD
Polk County Physical Planning
Portsmouth City Health Dept Division Air Pollution Control
Puerto Rico Environmental Quality Board
Quapaw Tribe of Indians, OK
Rhode Island DEM And DOH
Salt River Pima-Maricopa Indian Community of Salt River Reservation, AZ
San Diego County Air Pollution Control District
Shoshone-Bannock Tribes of Fort Hall Reservation of Idaho
South Carolina Department Health And Environmental Control
South Coast Air Quality Management District
South Dakota Department of Agriculture and Natural Resources
South West Ohio PQAO
Southern Ute Indian Tribe of Southern Ute Reservation, CO
State Of Louisiana
Tennessee Division Of Air Pollution Control
Texas Commission On Environmental Quality
Twenty-Nine Palms Band of Mission Indians
Utah Department Of Environmental Quality
Vermont Agency Of Environmental Conservation
Virgin Islands Department Of Planning & Natural Resources
Virginia Department of Environmental Quality
Washington State Department Of Ecology
Washoe County District Health Department
West Virginia Division of Air Quality
Wisconsin Dept Of Natural Resources, Air Monitoring Section
Wyoming Air Quality Division, Dept Of Environmental Quality
Interpoll Laboratories, Inc
Nucor Steel
University Hygenic Laboratory (University of Iowa)
Select a Method
Select a Monitoring Agency
Choose a Year range
2013-2015
2014-2016
2015-2017
2016-2018
2017-2019
2018-2020
2019-2021
2020-2022
2021-2023
2022-2024
2013-2016
2014-2017
2015-2018
2016-2019
2017-2020
2018-2021
2019-2022
2020-2023
2021-2024
2013-2017
2014-2018
2015-2019
2016-2020
2017-2021
2018-2022
2019-2023
2020-2024
Appendix A to Part 58 Methodology Selections
Bias Calculation Method Selection
Current (as of 5/6/2024)
Former (pre-5/6/2024)
DQA measurement threshold (precision)
>= 3 μg/m³ (current)
>= 2 μg/m³
All data (no threshold)
PEP audit FEM monitor comparison
Primary monitors only
All FRM monitors
PEP audit measurement threshold (bias)
>= 2 μg/m³ (current)
>= 3 μg/m³ (former)
All data (no threshold)
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PM2.5 Data Quality Dashboard
PM2.5 Data Quality Dashboard
PM2.5 Data Quality Dashboard