Air Quality Design Values Used for the Second Round of Area Designations for the 2008 Lead National 

Ambient Air Quality Standards

On November 12, 2008, the U.S. Environmental Protection Agency (EPA) published a rule revising the level of 

the Lead (Pb) National Ambient Air Quality Standards (NAAQS) from 1.5 micrograms per cubic meter (ųg/m3) to 

0.15 ųg/m3 measured as total suspended particles. The EPA designated areas for the revised Pb NAAQS in two 

rounds. The EPA designated certain areas, where 2007-2009 monitoring data existed showing a violation, as 

nonattainment in 2010 (75 FR 71033, Nov. 22. 2010). The EPA is completing the second round of designations 

for the 2008 Pb NAAQS by establishing air quality designations for all other areas in the United States. These 

designations were generally based on the most recent 3 years of quality assured air quality monitoring data (2008-

2010), which are shown below. Where a monitor has a design value for 2008-2010 above the Pb standard, the 

EPA has designated the area that violates the standard and any area that contributes to the violating area as 

“nonattainment.” As discussed in the preamble to the final designations, where a monitor has data for 2011 

available but not yet quality assured and certified that are exceeding the standard, the EPA designated the area as 

“unclassifiable.” All other areas in the country, where monitors have a design value meeting the standard, have 

incomplete air quality monitoring data for 2008-2010 (but no data exceeding the standard), or have no monitors, 

and are not contributing to a violating area, have been designated as “unclassifiable/attainment.”

County-Level Maximum 2008-2010 Design Value Concentrations for 2008 Lead NAAQS used to designate areas 

for the second round

State County

EPA 

Reg.

2008-2010 

Design Value 

(μg/m3)

1,2,3

Site ID CBSA

Alaska Northwest 

Arctic 10 0.00 inc. 021880001

California Imperial 9 0.02 inc. 060250005 El Centro, CA

California Riverside 9 0.01 060651003 Riverside-San Bernardino-Ontario, 

CA

California San Bernardino 9 0.02 060719004 Riverside-San Bernardino-Ontario, 

CA

Colorado Arapahoe 8 0.01 inc. 080050007 Denver-Aurora, CO

Colorado Denver 8 0.01 inc. 080310025 Denver-Aurora, CO

Florida Pinellas 4 0.00 inc. 121033005 Tampa-St. Petersburg-Clearwater, 

FL

Georgia Bartow 4 0.02 inc. 130150003 Atlanta-Sandy Springs-Marietta, GA

Georgia DeKalb 4 0.00 inc. 130890003 Atlanta-Sandy Springs-Marietta, GA

 

1

The level of the 2008 NAAQS for Pb is 0.15 micrograms per cubic meter (μg/m3) not to be exceeded in any 3-month 

period. The design value for the 2008 lead NAAQS is the maximum rolling 3-month lead-TSP average over a 3-year period.

2

The design values shown here are computed for the 2008-2010 design value period using Federal Reference Method or 

equivalent data reported by States, Tribes, and local agencies to EPA's Air Quality System (AQS) as of 7/12/2011. 

Concentrations flagged by States, Tribes, and local agencies as affected by exceptional events (e.g., high winds, wildfires, 

volcanic eruptions, construction) and concurred by the associated EPA Regional Office are not included in the calculation of 

these design values. Although the indicator for the 2008 Pb NAAQS is Pb-TSP at "local conditions" (i.e., actual temperature 

and pressure; parameter 14129), 2008 Pb-TSP data reported in "standard temperature and pressure" (i.e., 25 ° C, 760 mmHg; 

parameter 12128) are also considered valid for NAAQS comparisons and related attainment/nonattainment determinations if 

the sampling and analysis methods that were utilized to collect that data were consistent with previous or newly designated 

FRMs or FEMs and quality assurance requirements were met.

3 DVs that are bolded and colored (red or blue) are valid. All other design values are invalid and are shown in normal black 

font. For counties with invalid design values, the value shown in this column is the highest valid 3-month mean for sites in 

the county if at least one valid 3-month mean exists. If the county had sites that reported FRM/FEM data for the 2008-2010 

period but none of the sites had any valid 3-month means, the DV shown is the highest 3-month mean without regard to 

validity; these latter cases are underlined if present.
State County

EPA 

Reg.

2008-2010 

Design Value 

(μg/m3)

1,2,3

Site ID CBSA

Georgia Muscogee 4 0.07 inc. 132150011 Columbus, GA-AL

Illinois Cook 5 0.24 170310110 Chicago-Naperville-Joliet, IL-IN-WI

Illinois Macon 5 0.12 inc. 171150110 Decatur, IL

Illinois Macoupin 5 0.01 inc. 171170002 St. Louis, MO-IL

Illinois Peoria 5 0.02 inc. 171430110 Peoria, IL

Illinois Saint Clair 5 0.04 inc. 171630010 St. Louis, MO-IL

Illinois Whiteside 5 0.02 inc. 171950110 Sterling, IL

Illinois Winnebago 5 0.06 inc. 172010110 Rockford, IL

Indiana Lake 5 0.05 180890023 Chicago-Naperville-Joliet, IL-IN-WI

Indiana Marion 5 0.08 180970063 Indianapolis-Carmel, IN

Indiana Porter 5 0.02 inc. 181270023 Chicago-Naperville-Joliet, IL-IN-WI

Indiana Vanderburgh 5 0.01 inc. 181630006 Evansville, IN-KY

Iowa Pottawattamie 7 0.26 191550011 Omaha-Council Bluffs, NE-IA

Iowa Scott 7 0.02 inc. 191630015 Davenport-Moline-Rock Island, IAIL

Kansas Saline 7 0.42 201690004 Salina, KS

Kentucky Boyd 4 0.01 inc. 210190016 Huntington-Ashland, WV-KY-OH

Kentucky Madison 4 0.05 inc. 211510003 Richmond-Berea, KY

Kentucky Russell 4 0.02 inc. 212070001

Massachusetts Suffolk 1 0.02 inc. 250250002 Boston-Cambridge-Quincy, MA-NH

Michigan Ionia 5 0.28 260670003 Grand Rapids-Wyoming, MI

Michigan Kent 5 0.01 inc. 260810020 Grand Rapids-Wyoming, MI

Michigan Wayne 5 0.02 inc. 261630033 Detroit-Warren-Livonia, MI

Minnesota Hennepin 5 0.01 inc. 270530963 Minneapolis-St. Paul-Bloomington, 

MN-WI

Minnesota Ramsey 5 0.02 inc. 271230866 Minneapolis-St. Paul-Bloomington, 

MN-WI

Minnesota Saint Louis 5 0.00 inc. 271377001 Duluth, MN-WI

Minnesota Washington 5 0.00 inc. 271630009 Minneapolis-St. Paul-Bloomington, 

MN-WI

Missouri Jasper 7 0.02 inc. 290970005 Joplin, MO

Missouri Reynolds 7 0.10 inc. 291790003

Missouri Saint Francois 7 0.05 inc. 291870006 Farmington, MO

Missouri Saint Louis 7 0.06 inc. 291892003 St. Louis, MO-IL

Nebraska Dodge 7 0.07 inc. 310530005 Fremont, NE

Nebraska Nemaha 7 0.09 inc. 311270002

New Jersey Middlesex 2 0.01 inc. 340231003 New York-Northern New JerseyLong Island, NY-NJ-PA

New York Kings 2 0.02 inc. 360470122 New York-Northern New JerseyLong Island, NY-NJ-PA

New York Orange 2 0.04 360713001 Poughkeepsie-NewburghMiddletown, NY

Ohio Butler 5 0.01 inc. 390170015 Cincinnati-Middletown, OH-KY-IN

Ohio Columbiana 5 0.06 inc. 390290019 East Liverpool-Salem, OH

Ohio Franklin 5 0.01 inc. 390490025 Columbus, OH

Ohio Logan 5 0.10 inc. 390910006 Bellefontaine, OH

Ohio Marion 5 0.05 inc. 391010003 Marion, OH

Ohio Stark 5 0.02 inc. 391510017 Canton-Massillon, OH

Ohio Trumbull 5 0.01 inc. 391550012 Youngstown-Warren-Boardman, 

OH-PA

Ohio Washington 5 0.01 inc. 391670008 Parkersburg-Marietta-Vienna, WV-
State County

EPA 

Reg.

2008-2010 

Design Value 

(μg/m3)

1,2,3

Site ID CBSA

OH

Oklahoma Ottawa 6 0.02 inc. 401159006 Miami, OK

Oklahoma Pittsburg 6 0.00 inc. 401210416 McAlester, OK

Oregon Yamhill 10 0.03 inc. 410711702 Portland-Vancouver-Beaverton, ORWA

Pennsylvania Allegheny 3 0.03 420030002 Pittsburgh, PA

Pennsylvania Beaver 3 0.21 420070007 Pittsburgh, PA

Pennsylvania Cambria 3 0.07 inc. 420210808 Johnstown, PA

Pennsylvania Delaware 3 0.05 inc. 420450002 Philadelphia-Camden-Wilmington, 

PA-NJ-DE-MD

Pennsylvania Franklin 3 0.05 inc. 420550002 Chambersburg, PA

Pennsylvania Indiana 3 0.05 inc. 420630005 Indiana, PA

Pennsylvania Lawrence 3 0.04 inc. 420730011 New Castle, PA

Pennsylvania Luzerne 3 0.14 inc. 420790036 Scranton--Wilkes-Barre, PA

Pennsylvania Philadelphia 3 0.03 inc. 421010449 Philadelphia-Camden-Wilmington, 

PA-NJ-DE-MD

Pennsylvania Westmoreland 3 0.05 inc. 421290007 Pittsburgh, PA

Tennessee Knox 4 0.03 inc. 470931017 Knoxville, TN

Texas Cameron 6 0.01 inc. 480610006 Brownsville-Harlingen, TX

Texas El Paso 6 0.04 inc. 481410002 El Paso, TX

Texas Harris 6 0.01 inc. 482011034 Houston-Sugar Land-Baytown, TX

Texas Potter 6 0.00 inc. 483750024 Amarillo, TX

Texas Webb 6 0.03 inc. 484790016 Laredo, TX

Virginia Amherst 3 0.02 inc. 510090007 Lynchburg, VA

Virginia Buchanan 3 0.01 inc. 510270006

Virginia Henrico 3 0.01 inc. 510870014 Richmond, VA

Virginia Roanoke City 3 0.11 inc. 517700011 Roanoke, VA

Wisconsin Sheboygan 5 0.15 inc. 551170008 Sheboygan, WI

Puerto Rico Arecibo 2 0.25 720130001 San Juan-Caguas-Guaynabo, PR

Preliminary County-Level Maximum 2009-2011 Design Value Concentrations for 2008 Lead NAAQS used to 

designate areas for the second round

State County

EPA 

Region

2009-2011 

Design 

Value 

(μg/m3)

4,5

Site ID CBSA

Arizona Gila 9 0.71 040071002 Payson, AZ

New York Orange 2 1.03 360713002 Poughkeepsie-NewburghMiddletown, NY

Tennessee Knox 4 0.17 470930023 Knoxville, TN

 

4

2009-2011 Design Values are based on the data reported to AQS as of 10/05/2011. They should be regarded as preliminary. 

Preliminary Design Values are shown only for those cases where the value is above the level of the NAAQS. Final 2009-

2011 Design Values for all counties will be based on the quality assured, certified data reported the AQS. 

5 Arizona and Tennessee sites have a monitor that started operating in 2011. NY site has a longer running monitor that has

shown violation only in February 2011.