Top 101 counties with the highest carbon monoxide air pollution readings in 2012 (ppm)

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Value distibution for all U.S. cities

Top 101 counties with the highest carbon monoxide air pollution readings in 2012 (ppm)

RankCityValue
1.
Fairbanks North Star Borough, AK (Fairbanks, Badger, College) (pop. 82,840)1
2.
Lake County, IN (Gary, Hammond, East Chicago) (pop. 484,564)1
3.
Anchorage Municipality, AK (Anchorage) (pop. 260,283)1
4.
Worcester County, MA (Worcester, Leominster, Fitchburg) (pop. 750,963)1
5.
Allen County, IN (Fort Wayne, New Haven, Leo-Cedarville) (pop. 331,849)1
6.
Vanderburgh County, IN (Evansville, Melody Hill, Darmstadt) (pop. 171,922)1
7.
Wyandotte County, KS (Kansas City, Bonner Springs, Edwardsville) (pop. 157,882)1
8.
District of Columbia, DC (Washington) (pop. 572,059)1
9.
Clark County, NV (Las Vegas, Paradise, Henderson) (pop. 1,375,765)1
10.
San Mateo County, CA (Daly City, San Mateo, Redwood City) (pop. 707,161)0
11.
Orange County, CA (North Coast, Santa Ana, Anaheim) (pop. 2,846,289)0
12.
Riverside County, CA (Riverside, Perris Valley, Moreno Valley) (pop. 1,545,387)0
13.
Kern County, CA (Bakersfield, East Kern, Delano) (pop. 661,645)0
14.
Ramsey County, MN (St. Paul, Maplewood, Roseville) (pop. 511,035)0
15.
Butte County, CA (Chico, Paradise, Oroville) (pop. 203,171)0
16.
Kent County, MI (Grand Rapids, Wyoming, Kentwood) (pop. 574,335)0
17.
Marin County, CA (Ross Valley, San Rafael, Northeast Marin) (pop. 247,289)0
18.
Duval County, FL (Jacksonville, Jacksonville Beach, Atlantic Beach) (pop. 778,879)0
19.
Aroostook County, ME (Presque Isle, Caribou, Houlton) (pop. 73,938)0
20.
Marion County, IN (Indianapolis, Lawrence, Beech Grove) (pop. 860,454)0
21.
Paulding County, GA (Huntsville, Yorkville, Dallas) (pop. 81,678)0
22.
Hampden County, MA (Springfield, Chicopee, Westfield) (pop. 456,228)0
23.
Essex County, MA (Lynn, Lawrence, Haverhill) (pop. 723,419)0
24.
Adams County, CO (Aurora, West Adams, Westminster) (pop. 363,857)0
25.
Honolulu County, HI (Honolulu, Urban Honolulu, Ewa) (pop. 876,156)0
26.
Linn County, IA (Cedar Rapids, Marion, Hiawatha) (pop. 191,701)0
27.
La Plata County, CO (Durango, Bayfield, Ignacio) (pop. 43,941)0
28.
Sedgwick County, KS (Wichita, Derby, Haysville) (pop. 452,869)0
29.
Pima County, AZ (Tucson, Casas Adobes, Catalina Foothills) (pop. 843,746)0
30.
Denver County, CO (Denver, Holly Hills) (pop. 554,636)0
31.
Anoka County, MN (Coon Rapids, Blaine, Fridley) (pop. 298,084)0
32.
DeKalb County, GA (North Atlanta, Redan, Dunwoody) (pop. 665,865)0
33.
Maricopa County, AZ (Phoenix, Mesa, Glendale) (pop. 3,072,149)0
34.
Los Angeles County, CA (Los Angeles, East San Gabriel Valley, Long Beach) (pop. 9,519,338)0
35.
Hartford County, CT (Hartford, New Britain, West Hartford) (pop. 857,183)0
36.
Solano County, CA (Vallejo, Fairfield, Vacaville) (pop. 394,542)0
37.
Wayne County, MI (Detroit, Livonia, Dearborn) (pop. 2,061,162)0
38.
Edmonson County, KY (Lincoln, Sunfish, Brownsville) (pop. 11,644)0
39.
Litchfield County, CT (Torrington, Watertown, Plymouth) (pop. 182,193)0
40.
Imperial County, CA (El Centro, Calexico, Brawley) (pop. 142,361)0
41.
Larimer County, CO (Fort Collins, Loveland, Estes Park) (pop. 251,494)0
42.
Jackson County, CO (Walden) (pop. 1,577)0
43.
Alameda County, CA (Oakland, Fremont, Hayward) (pop. 1,443,741)0
44.
Weld County, CO (Greeley, Windsor, Evans) (pop. 180,936)0
45.
Fairfield County, CT (Bridgeport, Stamford, Norwalk) (pop. 882,567)0
46.
Dakota County, MN (Eagan, Burnsville, Apple Valley) (pop. 355,904)0
47.
New Haven County, CT (New Haven, Waterbury, Meriden) (pop. 824,008)0
48.
East Baton Rouge Parish, LA (Baton Rouge, Central, Shenandoah) (pop. 412,852)0
49.
Ada County, ID (Boise, Meridian, Orchard) (pop. 300,904)0
50.
Santa Clara County, CA (San Jose, Sunnyvale, Santa Clara) (pop. 1,682,585)0
51.
New Castle County, DE (Brandywine, Wilmington, Greater Newark) (pop. 500,265)0
52.
Pulaski County, AR (Little Rock, North Little Rock, Jacksonville) (pop. 361,474)0
53.
San Joaquin County, CA (Stockton, Lodi, Tracy) (pop. 563,598)0
54.
Sacramento County, CA (Sacramento, Mather, Arden-Arcade) (pop. 1,223,499)0
55.
Cumberland County, ME (Portland, South Portland, Westbrook) (pop. 265,612)0
56.
Miami-Dade County, FL (Miami, Kendale Lakes-Lindgren Acres, Hialeah) (pop. 2,253,362)0
57.
Prince George's County, MD (Bowie, Oxon Hill-Glassmanor, Chillum) (pop. 801,515)0
58.
Humboldt County, CA (Eureka, North Coastal, Arcata) (pop. 126,518)0
59.
Suffolk County, MA (Boston, Revere, Chelsea) (pop. 689,807)0
60.
Hancock County, ME (Ellsworth, Bucksport, Bar Harbor) (pop. 51,791)0
61.
Monterey County, CA (Salinas, Seaside, Monterey) (pop. 401,762)0
62.
Cook County, IL (Chicago, Cicero, Arlington Heights) (pop. 5,376,741)0
63.
Jefferson County, AL (Birmingham, Hoover, Bessemer) (pop. 662,047)0
64.
Contra Costa County, CA (Central Contra Costa, West Contra Costa, Concord) (pop. 948,816)0
65.
Napa County, CA (Napa, American Canyon, St. Helena) (pop. 124,279)0
66.
Orange County, FL (Orlando, Southwest Orange, Alafaya) (pop. 896,344)0
67.
Garrett County, MD (Mountain Lake Park, Oakland, Grantsville) (pop. 29,846)0
68.
Jefferson County, KY (Louisville, Jeffersontown, Pleasure Ridge Park) (pop. 693,604)0
69.
Fresno County, CA (Fresno, Clovis, Reedley) (pop. 799,407)0
70.
Hinds County, MS (Jackson, Clinton, Byram) (pop. 250,800)0
71.
Dorchester County, MD (Cambridge, Hurlock, Algonquin) (pop. 30,674)0
72.
Stanislaus County, CA (Modesto, Turlock, Ceres) (pop. 446,997)0
73.
Polk County, IA (Des Moines, West Des Moines, Urbandale) (pop. 374,601)0
74.
San Bernardino County, CA (San Bernardino, Ontario, Fontana) (pop. 1,709,434)0
75.
San Francisco County, CA (San Francisco) (pop. 776,733)0
76.
Sonoma County, CA (Santa Rosa, Petaluma, Rohnert Park) (pop. 458,614)0
77.
Hillsborough County, FL (Tampa, Citrus Park-Fern Lake, Brandon) (pop. 998,948)0
78.
Santa Barbara County, CA (Santa Maria Valley, Santa Barbara, Santa Maria) (pop. 399,347)0
79.
San Diego County, CA (San Diego, Chula Vista, Oceanside) (pop. 2,813,833)0
80.
St. Louis County, MN (Duluth, Hibbing, Virginia) (pop. 200,528)0
81.
St. Louis city, MO (St. Louis) (pop. 348,189)0
82.
Lewis and Clark County, MT (Helena, Helena Valley Southeast, Helena Valley West Central) (pop. 55,716)0
83.
Douglas County, NE (Omaha, Ralston, Elkhorn) (pop. 463,585)0
84.
Lancaster County, NE (Lincoln, Waverly, Hickman) (pop. 250,291)0
85.
Scott County, IA (Davenport, Bettendorf, Eldridge) (pop. 158,668)0
86.
Washoe County, NV (Reno, Sparks, North Valleys) (pop. 339,486)0
87.
Rockingham County, NH (Salem, Derry, Portsmouth) (pop. 277,359)0
88.
Cheshire County, NH (Keene, Swanzey, Rindge) (pop. 73,825)0
89.
Hillsborough County, NH (Manchester, Nashua, Merrimack) (pop. 380,841)0
90.
Union County, NJ (Elizabeth, Union, Plainfield) (pop. 522,541)0
91.
Camden County, NJ (Camden, Pennsauken, Lindenwold) (pop. 508,932)0
92.
Essex County, NJ (Newark, East Orange, Irvington) (pop. 793,633)0
93.
Bernalillo County, NM (Albuquerque, Rio Rancho, South Valley) (pop. 556,678)0
94.
Steuben County, NY (Corning, Hornell, Erwin) (pop. 98,726)0
95.
Monroe County, NY (Rochester, Irondequoit, Perinton) (pop. 735,343)0
96.
Niagara County, NY (Niagara Falls, North Tonawanda, Lockport) (pop. 219,846)0
97.
New York County, NY (New York, Manhattan) (pop. 1,537,195)0
98.
Onondaga County, NY (Syracuse, Clay, Salina) (pop. 458,336)0
99.
Bronx County, NY (Bronx) (pop. 1,332,650)0
100.
Queens County, NY (Queens) (pop. 2,229,379)0
101.
Erie County, NY (Buffalo, Amherst, Cheektowaga) (pop. 950,265)0
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