Air Quality / All Readings
All Current Air Quality Readings
741 EPA AirNow monitoring stations with a reading in the last 3 hours, grouped by state. This is the full list — see Air Quality for just the worst 25 nationwide.
AL
Birmingham
PM2.5
Moderate51
Columbus-Phenix City - GA and AL
OZONE
Good39
Gadsden
PM2.5
Moderate52
Huntsville
PM2.5
Good41
Mobile
PM2.5
Moderate67
Montgomery
PM2.5
Moderate55
Tuscaloosa
OZONE
Good31
Ward
PM2.5
Moderate55
AR
Arkadelphia-Caddo Valley
OZONE
Good50
Little Rock-North Little Rock
PM2.5
Moderate56
Springdale (Springdale-Fayetteville-Bentonville)
PM2.5
Moderate52
AZ
Douglas
PM10
Good15
Flagstaff
OZONE
Good42
Gila River Indian Community
OZONE
Good46
Grand Canyon National Park
OZONE
Moderate51
Hayden
PM10
Good15
McDowell
OZONE
Moderate64
Miami
PM10
Good15
Nogales
PM2.5
Good45
Phoenix
OZONE
Moderate71
Prescott
OZONE
Good44
Rillito
PM10
Good21
Salt River Pima-Maricopa Indian Community
OZONE
Moderate67
Tucson
OZONE
Moderate51
West Pinal
OZONE
Good50
Yuma
PM2.5
Good40
CA
Antelope Vly
OZONE
Moderate51
Arden Arcade-Del Paso Manor
OZONE
Good50
Atascadero
OZONE
Good46
Auburn
OZONE
Good46
Bakersfield
OZONE
Moderate90
Banning
OZONE
Moderate64
Barstow
OZONE
Moderate54
Big Bear Lake
PM2.5
Good19
Bishop
PM10
Moderate59
Blythe
OZONE
Good34
Border Area
PM2.5
Moderate58
Brawley
PM2.5
Moderate52
Calaveras County
OZONE
Good45
Calexico
PM2.5
Moderate52
Carmel Valley
PM2.5
Moderate54
Carpinteria
PM2.5
Good44
Carrizo Plains
OZONE
Good42
Central LA CO
PM2.5
Moderate60
Central Orange
PM2.5
Moderate57
Chico
OZONE
Good43
Coachella Vly
PM10
Hazardous354
Colfax
OZONE
Good41
Concord
OZONE
Good46
Cool
OZONE
Good42
Crescent City
PM2.5
Good39
C San Bernardino
OZONE
Unhealthy for Sensitive Groups108
C San Bernardino M
OZONE
Moderate87
Davis
OZONE
Good44
Death Valley National Park
OZONE
Good49
El Centro
PM2.5
Moderate52
Elk Grove
OZONE
Good43
E San Bernardino
OZONE
Unhealthy for Sensitive Groups108
E San Fernando Vly
OZONE
Good44
E San Gabriel Vly
OZONE
Unhealthy for Sensitive Groups119
Eureka
PM10
Good19
Fairfield
OZONE
Good41
Folsom
OZONE
Moderate61
Fort Bragg
PM10
Good23
Fremont
OZONE
Good33
Fresno
OZONE
Moderate64
Gaviota Coast
OZONE
Good32
Gridley
PM2.5
Good21
Hanford
PM2.5
Moderate58
Hesperia
OZONE
Moderate51
Hollister
PM2.5
Good34
Imperial Valley
PM10
Moderate53
Joshua Tree National Park
OZONE
Good50
King City
PM2.5
Moderate57
Lake Elsinore
OZONE
Good47
Lassen Volcanic National Park
OZONE
Good41
Lee Vining
PM2.5
Good17
Lincoln
OZONE
Good31
Livermore
OZONE
Good45
Lompoc
PM2.5
Good37
Lone Pine
PM10
Good14
Madera
OZONE
Good48
Merced
PM2.5
Moderate54
Metro Riverside CO
OZONE
Moderate87
Modesto
OZONE
Moderate51
Mojave
OZONE
Good48
Mono Lake
PM2.5
Good17
Morro Bay
PM2.5
Moderate52
Napa
PM2.5
Good41
Niland
PM10
Moderate52
Nipomo
PM10
Good29
Nipomo CDF
PM2.5
Moderate54
Nipomo Mesa2
PM2.5
Moderate52
North Orange CO
OZONE
Moderate100
NW Coastal LA
OZONE
Moderate51
Oakland
PM2.5
Moderate67
Ojai
OZONE
Good39
Olancha
PM10
Good17
Owens Lake
PM2.5
Good30
Oxnard
PM2.5
Good49
Paradise
OZONE
Good44
Paradise Road
OZONE
Good25
Paso Robles
OZONE
Good44
Pinnacles National Monument
OZONE
Good45
Piru
OZONE
Good40
Placerville
OZONE
Good42
Portola
PM2.5
Good35
Quincy
PM2.5
Moderate58
Red Bluff
OZONE
Good41
Redding
OZONE
Good40
Red Hills
OZONE
Good44
Redwood City
OZONE
Good21
Roseville-Rocklin
PM2.5
Good32
Sacramento
OZONE
Good47
Saddleback Vly
PM2.5
Good46
Salinas
PM2.5
Moderate54
San Diego Coast
PM2.5
Moderate54
San Diego Foothills
OZONE
Good48
San Diego Mesa and Inland Valley
PM2.5
Good46
San Francisco
PM2.5
Good39
San Jose
PM2.5
Good46
San Lorenzo Valley
PM2.5
Good37
San Luis Obispo
PM2.5
Moderate83
San Rafael
OZONE
Good25
Santa Clarita Vly
PM2.5
Good49
Santa Cruz
PM2.5
Good47
Santa Maria
PM2.5
Moderate61
Santa Rosa
OZONE
Good25
Santa Ynez
PM2.5
Moderate53
S Central LA CO
PM2.5
Moderate60
Sequoia and Kings Canyon National Parks
OZONE
Moderate90
Simi Valley
OZONE
Good44
Sloughhouse
OZONE
Moderate64
South Coastal LA
PM2.5
Moderate61
South Lake Tahoe
PM10
Good8
S San Gabriel Vly
OZONE
Moderate74
Stockton
OZONE
Good41
Tahoe City area
PM2.5
Good42
Temecula Vly
PM2.5
Good39
Thousand Oaks
OZONE
Good42
Trona
OZONE
Good41
Truckee
PM2.5
Good44
Tuolumne County
OZONE
Good41
Ukiah
OZONE
Good32
Vacaville
OZONE
Good43
Victorville
OZONE
Moderate54
Visalia
OZONE
Moderate61
Weaverville
PM2.5
Good0
Western Nevada County
OZONE
Good38
Westmorland
PM10
Moderate53
Willits
PM2.5
Good18
Willows
OZONE
Good34
Woodland
OZONE
Good43
W San Fernando Vly
OZONE
Good40
W San Gabriel Vly
OZONE
Moderate58
Yosemite National Park
OZONE
Good45
Yreka
OZONE
Good40
Yuba City and Marysville
OZONE
Good44
CO
Aspen
OZONE
Good46
Colorado River Valley
OZONE
Good48
Colorado Springs
OZONE
Good47
Denver-Boulder
OZONE
Moderate80
Fort Collins
OZONE
Moderate58
Four Corners Area
OZONE
Good49
Grand Junction
OZONE
Moderate51
Greeley
OZONE
Moderate58
Lamar
PM2.5
Good49
Mesa Verde National Park
OZONE
Moderate54
Pueblo
OZONE
Good45
San Luis Valley
PM10
Good16
Southern Ute Indian Reservation
OZONE
Good44
Steamboat Springs
PM2.5
Good27
Telluride
PM2.5
Good16
CT
Bridgeport
PM2.5
Good22
Danbury
PM2.5
Good47
Hartford
OZONE
Good47
Madison
OZONE
Good44
Middletown
OZONE
Good47
New Haven
OZONE
Good40
New London-Groton
OZONE
Good44
Stafford
OZONE
Good39
Stratford
OZONE
Good48
Torrington
OZONE
Good36
Waterbury
PM2.5
Good29
Westport
OZONE
Good46
DC
Northern Virginia and DC
PM2.5
Good40
DE
Greater New Castle County
PM2.5
Good48
Kent County
PM2.5
Good49
Sussex County
OZONE
Good38
Wilmington Area
PM2.5
Good44
FL
Baker County
PM2.5
Moderate57
Belle Glade
PM2.5
Good28
Broward County
PM2.5
Moderate62
Citrus County
PM2.5
Good47
Columbia and Suwannee Counties
PM2.5
Moderate53
Daytona Beach
OZONE
Good28
Fort Myers
PM2.5
Good31
Fort Pierce
PM2.5
Good39
Gainesville
PM2.5
Good29
Hamilton County
PM2.5
Moderate51
Highlands County
OZONE
Good31
Holiday
OZONE
Good27
Indian River County
OZONE
Good30
Jacksonville
PM2.5
Moderate61
Lake County
OZONE
Good27
Lakeland
OZONE
Good22
Liberty County
OZONE
Good36
Melbourne
PM2.5
Good38
Miami
PM2.5
Moderate54
Naples
PM2.5
Moderate54
Ocala
PM2.5
Moderate55
Okaloosa County
OZONE
Moderate64
Orlando
OZONE
Good30
Pensacola
PM2.5
Moderate85
Putnam County
PM10
Good14
Sarasota
OZONE
Good30
Seminole County
PM2.5
Good24
St. Petersburg
OZONE
Good28
Tallahassee
OZONE
Moderate58
Tampa
OZONE
Good36
West Palm Beach
PM2.5
Good49
GA
Athens-Clarke County
PM2.5
Moderate59
Atlanta
PM2.5
Moderate61
Brunswick
OZONE
Good44
Columbus-Phenix City - GA and AL
PM2.5
Moderate51
Douglas
PM2.5
Moderate64
Gainesville
PM2.5
Good38
Macon
PM2.5
Moderate58
Rome
PM2.5
Good28
Savannah
PM2.5
Good48
Warner Robins
PM2.5
Moderate57
HI
Hilo
PM2.5
Good29
Honolulu
PM2.5
Good20
Kailua-Kona
PM2.5
Moderate59
Keaau
PM2.5
Good19
Kihei
PM2.5
Good41
Sand Island
OZONE
Good9
Waikoloa
PM2.5
Good18
IA
Clinton
PM2.5
Moderate64
Davenport
PM2.5
Moderate76
Des Moines
PM2.5
Moderate62
Iowa City
PM2.5
Moderate67
Lake Sugema
PM2.5
Moderate71
Muscatine
PM2.5
Moderate67
Pisgah
OZONE
Good28
Sioux City
OZONE
Good37
Viking Lake State Park
PM2.5
Moderate59
Waterloo
PM2.5
Moderate68
ID
Boise
OZONE
Good40
Coeur d'Alene
PM2.5
Good47
Cottonwood (seasonal)
PM2.5
Moderate61
Craters of the Moon National Monument
OZONE
Good40
Franklin County
PM2.5
Good21
Garden Valley
PM2.5
Good20
Grangeville
PM2.5
Moderate61
Idaho City
PM2.5
Good13
Idaho Falls
PM2.5
Good0
Juliaetta (seasonal)
PM2.5
Moderate54
Kamiah - Nez Perce Reservation
PM2.5
Moderate72
Ketchum
PM2.5
Good22
Kootenai Tribe
PM2.5
Moderate69
Lapwai - Nez Perce Reservation
PM2.5
Good49
Lewiston
PM2.5
Moderate54
McCall
PM2.5
Good19
Moscow
PM2.5
Good18
Mount Hall (seasonal)
PM2.5
Moderate66
Pinehurst
PM10
Good43
Pocatello
OZONE
Good42
Porthill (seasonal)
PM2.5
Moderate55
Salmon
PM2.5
Good13
Sandpoint
PM2.5
Moderate52
Shoshone-Bannock Tribes of Fort Hall Reservation
PM10
Good40
St. Maries
PM2.5
Good33
Twin Falls
PM2.5
Good41
Weiser (seasonal)
PM2.5
Good43
IL
Aurora and Elgin
PM2.5
Moderate66
Bloomington and Normal
PM2.5
Moderate82
Champaign
PM2.5
Moderate64
Chicago
PM2.5
Moderate66
Decatur
PM2.5
Moderate59
Joliet and Will County
PM2.5
Moderate70
Lake County
PM2.5
Moderate68
North and West Suburbs (Chicago)
PM2.5
Moderate68
Peoria
PM2.5
Moderate88
Rockford
PM2.5
Moderate60
Rock Island-Moline
PM2.5
Moderate75
South and West Suburbs (Chicago)
PM2.5
Moderate70
Springfield
PM2.5
Moderate67
St. Louis (Metro-east)
PM2.5
Moderate71
IN
Bloomington
PM2.5
Moderate59
Evansville
PM2.5
Good37
Fort Wayne
PM2.5
Moderate77
Hammond-Gary
PM2.5
Moderate76
Indianapolis
PM2.5
Moderate54
Kokomo
OZONE
Good37
Lafayette
PM2.5
Moderate58
Muncie
PM2.5
Moderate58
South Bend
PM2.5
Moderate57
Terre Haute
OZONE
Good30
Vincennes
OZONE
Good34
KS
Chanute
PM2.5
Moderate52
Goodland
PM2.5
Good42
Topeka
PM2.5
Moderate57
Wichita
PM2.5
Moderate54
KY
Ashland
PM2.5
Good31
Bowling Green
PM2.5
Good33
Elizabethtown
PM2.5
Good33
Hazard
PM2.5
Good39
Lexington
PM2.5
Good47
Louisville
PM2.5
Moderate52
Northern Kentucky
PM2.5
Good37
Owensboro
PM2.5
Moderate52
Pikeville
PM2.5
Good32
LA
Baton Rouge Area
PM2.5
Moderate57
Lafayette
OZONE
Moderate58
Lake Charles
PM2.5
Moderate56
Monroe
PM2.5
Moderate57
New Orleans
PM2.5
Moderate60
Shreveport
PM2.5
Moderate71
Thibodaux
PM2.5
Moderate63
MA
Berkshire
OZONE
Good33
Boston Metro
OZONE
Good24
Cape Cod and Islands
OZONE
Good19
Essex
OZONE
Good22
Franklin
OZONE
Good25
Hampden-Hampshire
OZONE
Good33
Norfolk
OZONE
Good21
North Bristol-Plymouth
PM2.5
Good24
South Bristol-Plymouth
OZONE
Good42
West Middlesex
OZONE
Good27
Worcester
OZONE
Good26
MD
Hagerstown Region
PM2.5
Good32
Lower Eastern Shore
OZONE
Good35
Maryland Piedmont
OZONE
Good31
Metro Baltimore
PM2.5
Good43
Northeast Maryland
OZONE
Good37
Northern Baltimore
PM2.5
Good41
Southern Maryland
OZONE
Good24
Suburban DC
PM2.5
Moderate55
Upper Eastern Shore
PM2.5
Good37
Western Maryland
PM2.5
Good33
ME
Downeast Coast
OZONE
Good29
Eastern Interior
OZONE
Good21
High Elevations of Acadia National Park
OZONE
Good36
Mid-Coast
OZONE
Good28
Northern
PM2.5
Good14
Southwest Coast
PM2.5
Good31
Western Interior
OZONE
Good25
Western Mountains
PM2.5
Good25
MI
Bay Area-Thumb Area
OZONE
Good23
Eastern Upper Peninsula
OZONE
Good20
Flint
PM2.5
Good31
Grand Rapids
PM2.5
Good45
Jackson
PM2.5
Moderate61
Kalamazoo
PM2.5
Good39
Lansing
PM2.5
Good37
Ludington
OZONE
Good20
Mt Pleasant
PM2.5
Good37
Northcentral-Northeast Lower
PM2.5
Good34
Northwest Lower
OZONE
Good27
Southeast
PM2.5
Moderate65
Southwest
OZONE
Good25
Western Upper Peninsula
PM2.5
Good19
MN
Central Minnesota
PM2.5
Good37
Duluth Area
OZONE
Good27
East Central Minnesota
OZONE
Good23
Minnesota Arrowhead
OZONE
Good24
Mississippi River Valley
OZONE
Good28
North Central Minnesota
OZONE
Good26
Northern Twin Cities Metro
PM2.5
Moderate55
Northwestern Minnesota
OZONE
Good23
Red River Valley North
PM2.5
Moderate70
Red River Valley South
PM2.5
Moderate70
Rochester Area
PM2.5
Moderate53
South Central Minnesota
PM2.5
Moderate62
Southern Twin Cities Metro
PM2.5
Moderate67
Southwestern Minnesota
PM2.5
Moderate64
St. Cloud Area
PM2.5
Moderate55
Twin Cities
PM2.5
Moderate57
West Central Minnesota
PM2.5
Moderate64
MO
Alba
OZONE
Good35
Bonne Terre
OZONE
Good23
Columbia
OZONE
Good16
El Dorado Springs
OZONE
Good35
Farrar
OZONE
Good34
Jefferson City
OZONE
Good28
Kansas City
PM2.5
Moderate52
Mark Twain State Park
OZONE
Good27
Saint Louis
PM10
Moderate63
Springfield
PM2.5
Good49
St. Joseph
PM2.5
Good44
MS
Cleveland
OZONE
Moderate54
Hattiesburg
PM2.5
Moderate56
Hernando
PM2.5
Moderate54
Jackson
PM2.5
Moderate52
Mississippi Gulf Coast
OZONE
Moderate74
Tupelo
OZONE
Good37
MT
Billings
OZONE
Good31
Butte
PM2.5
Good19
Cut Bank
PM2.5
Moderate56
Dillon
PM2.5
Good26
Flathead Valley
PM2.5
Good38
Glacier National Park
OZONE
Good33
Great Falls
PM2.5
Moderate65
Hamilton
PM2.5
Moderate77
Havre
PM2.5
Moderate52
Helena
PM2.5
Good44
Lewistown
PM2.5
Moderate51
Libby
PM10
Good19
Malta
PM2.5
Good32
Missoula
PM2.5
Moderate58
Thompson Falls
PM2.5
Good36
Yellowstone National Park
OZONE
Good43
MX
Guanajuato
PM2.5
Moderate64
NC
Alexander County
OZONE
Good31
Avery County
OZONE
Good28
Buncombe County
PM2.5
Good27
Caldwell County
OZONE
Good29
Carteret County
OZONE
Good35
Catawba County
PM2.5
Good31
Cumberland County
PM2.5
Good36
Durham County
PM2.5
Good46
Edgecombe County
OZONE
Good40
Forsyth County-Winston-Salem-Greensboro-High Point
PM2.5
Moderate53
Granville County
OZONE
Good34
Haywood County
OZONE
Good30
Johnston County
OZONE
Good28
Lenoir County
OZONE
Good31
Lincoln County
OZONE
Good27
Macon County
OZONE
Good25
Martin County
OZONE
Good30
Mecklenburg County
PM2.5
Good47
Mitchell County
PM2.5
Good8
Montgomery County
OZONE
Good29
New Hanover County
PM2.5
Moderate52
Northampton County
PM2.5
Good38
North Ridges
OZONE
Good33
Person County
OZONE
Good29
Pitt County
PM2.5
Good21
Rowan County
PM2.5
Good37
South Ridges
OZONE
Good41
Swain County
PM2.5
Good34
Union County
OZONE
Good43
Wake County
PM2.5
Moderate56
ND
Beulah
OZONE
Good39
Bismarck
OZONE
Good42
Fargo
PM2.5
Moderate70
Theodore Roosevelt National Park
OZONE
Good35
NE
Beatrice
PM2.5
Good37
Grand Island
PM2.5
Good46
Lincoln
PM2.5
Moderate54
Omaha
PM2.5
Moderate52
Santee Sioux Reservation
OZONE
Good33
Scottsbluff
PM2.5
Good8
Weeping Water
PM10
Good17
WTN1
PM2.5
Moderate54
WTN2
PM2.5
Moderate58
NH
Belknap County
OZONE
Good24
Cheshire County
OZONE
Good26
Coastal Rockingham County
OZONE
Good23
Coos County
OZONE
Good18
Grafton County
OZONE
Good27
Hillsborough County
OZONE
Good32
Interior Rockingham County
OZONE
Good25
Merrimack County
OZONE
Good21
NJ
Central
PM2.5
Good41
Delaware Water Gap
PM2.5
Good32
Monmouth County
OZONE
Good33
North Central
PM2.5
Good34
Northeast Urban
PM2.5
Good43
Riverline
OZONE
Good34
South Coastal
PM2.5
Good43
Southeast Burlington and Ocean Counties
PM2.5
Good46
Southern Bay
OZONE
Good33
NM
Albuquerque
OZONE
Good47
Carlsbad
OZONE
Moderate54
Coyote
OZONE
Moderate51
Deming
PM10
Good8
Dona Ana County
PM2.5
Moderate69
Hobbs
OZONE
Good43
Las Cruces
OZONE
Good42
San Juan County
OZONE
Good46
Santa Fe
OZONE
Good44
Taos
PM2.5
Good14
NV
Boulder City
OZONE
Moderate51
Carson City
OZONE
Good38
Elko
PM10
Good20
Fallon
OZONE
Good36
Fernley
OZONE
Good33
Great Basin National Park
OZONE
Good48
Indian Springs
OZONE
Moderate61
Jean
OZONE
Moderate51
Las Vegas
OZONE
Moderate58
Pahrump
PM10
Good20
Reno-Sparks
PM2.5
Good43
NY
Adirondacks Region
OZONE
Good31
Central New York Region
OZONE
Good29
Eastern Lake Ontario Region
OZONE
Good28
Long Island Region
OZONE
Good44
Lower Hudson Valley Region
PM2.5
Good49
New York City Region
PM2.5
Good42
Upper Hudson Valley Region
OZONE
Good31
Western New York Region
PM2.5
Good27
OH
Canton and Massillon
PM2.5
Moderate82
Cincinnati
PM2.5
Good48
Cleveland-Akron-Lorain
PM2.5
Moderate93
Columbus
PM2.5
Moderate61
Dayton
PM2.5
Good46
Lima
PM2.5
Moderate78
Toledo
PM2.5
Moderate84
Youngstown
PM2.5
Moderate89
OK
Ardmore
PM2.5
Moderate52
Lawton
OZONE
Moderate77
McAlester
OZONE
Moderate51
Miami
PM2.5
Moderate63
Oklahoma City
OZONE
Unhealthy for Sensitive Groups112
Stilwell
OZONE
Good42
Tulsa
OZONE
Moderate54
Woodward
OZONE
Moderate93
OR
Albany
PM2.5
Good9
Ashland
OZONE
Good39
Baker City
PM2.5
Moderate72
Beaverton
PM2.5
Good11
Bend and Redmond
PM2.5
Good19
Brookings
PM2.5
Good16
Burns
PM2.5
Good21
Cave Junction
PM2.5
Good14
Chiloquin
PM2.5
Good13
Clackamas
OZONE
Good32
Coos, Lower Umpqua, and Siuslaw Indians of Oregon
PM2.5
Good18
Corvallis
PM2.5
Good9
Cottage Grove
OZONE
Good31
Cove
PM2.5
Good38
Crater Lake
PM2.5
Good12
Dallas
PM2.5
Good5
Enterprise
PM2.5
Moderate53
Estacada
PM2.5
Good9
Eugene and Springfield
OZONE
Good26
Florence
PM2.5
Good14
Grants Pass
PM2.5
Good11
Hermiston
OZONE
Good32
Hillsboro
PM2.5
Good10
Hood River
PM2.5
Good22
John Day
PM2.5
Good18
Klamath Falls
PM2.5
Good8
La Grande
PM2.5
Moderate54
Lakeview
PM2.5
Good16
La Pine
PM2.5
Good16
Lyons
PM2.5
Good13
Madras
PM2.5
Moderate71
Medford
PM2.5
Good8
Multorpor
PM2.5
Good11
North Santiam Canyon
PM2.5
Good9
Oakridge
PM2.5
Good16
Ontario
PM2.5
Good19
Pendleton
PM2.5
Good47
Portland
OZONE
Good27
Prineville
PM2.5
Good17
Roseburg
PM2.5
Good16
Salem
OZONE
Good29
Sauvie Island
OZONE
Good24
Shady Cove
PM2.5
Good12
Sisters
PM2.5
Good22
Sweet Home
PM2.5
Good3
The Dalles
PM2.5
Good21
Tillamook
PM2.5
Good8
Toledo
PM2.5
Good10
PA
Altoona
PM2.5
Moderate53
Erie
PM2.5
Good36
Indiana County
PM2.5
Moderate66
Johnstown
PM2.5
Moderate65
Lehigh Valley
PM2.5
Good35
Mercer County
PM2.5
Moderate80
Mon Valley Area
PM2.5
Moderate73
Philadelphia
PM2.5
Good48
Pittsburgh
PM2.5
Moderate76
Scranton and Wilkes-Barre
PM2.5
Good38
State College
PM2.5
Good48
Susquehanna Valley
PM2.5
Moderate57
Williamsport
PM2.5
Good31
RI
Coastal
OZONE
Good44
Providence
OZONE
Good36
Western
OZONE
Good21
SC
Aiken-Augusta - SC and GA
PM2.5
Moderate61
Catawba Indian Nation
OZONE
Good33
Charleston
PM2.5
Good45
Columbia
PM2.5
Moderate58
Florence and Darlington
PM2.5
Moderate63
Greenville-Spartanburg
PM2.5
Good47
Myrtle Beach-Conway
OZONE
Good37
York, Chester, and Lancaster
OZONE
Good31
SD
Aberdeen
PM2.5
Moderate54
Brookings
PM2.5
Good39
Pierre
PM2.5
Good16
Rapid City
PM2.5
Good40
Sioux Falls
OZONE
Good35
Vermillion
OZONE
Good32
Watertown
PM2.5
Moderate51
Wind Cave
OZONE
Moderate64
TN
Athens
PM2.5
Moderate53
Chattanooga
PM2.5
Good40
Clarksville-Montgomery County
PM2.5
Good49
Cookeville
PM2.5
Moderate51
Dyersburg
PM2.5
Moderate51
Great Smoky Mtns. Natl. Park - TN
OZONE
Good38
Jackson
PM2.5
Moderate54
Knoxville
PM2.5
Moderate51
Loretto
PM2.5
Good28
Memphis
PM2.5
Moderate52
Nashville
PM2.5
Moderate52
Tri-Cities
PM2.5
Good33
TX
Amarillo
OZONE
Moderate61
Austin
PM2.5
Moderate59
Beaumont-Port Arthur
OZONE
Moderate71
Big Bend
PM2.5
Good41
Brownsville-McAllen
PM2.5
Moderate56
Bryan-College Station
PM2.5
Moderate56
Corpus Christi
PM2.5
Moderate60
Dallas-Fort Worth
OZONE
Moderate71
El Paso
PM2.5
Moderate52
Houston-Galveston-Brazoria
OZONE
Moderate71
Laredo
PM2.5
Moderate52
Lubbock
PM2.5
Good35
Midland-Odessa
PM2.5
Moderate55
San Antonio
PM2.5
Moderate60
Tyler-Longview-Marshall
PM2.5
Moderate54
Victoria
OZONE
Good32
Waco-Killeen
PM2.5
Moderate60
UT
Brigham City
OZONE
Moderate87
Canyonlands National Park
OZONE
Moderate74
Dinosaur National Monument
OZONE
Moderate61
Enoch
OZONE
Good48
Hurricane
OZONE
Good48
Logan
OZONE
Good46
Ogden
OZONE
Moderate97
Price
OZONE
Moderate58
Provo
OZONE
Moderate64
Roosevelt
OZONE
Moderate61
Salt Lake City
OZONE
Moderate84
Timpanogos Cave National Monument
PM2.5
Good41
Tooele
OZONE
Moderate84
Vernal
OZONE
Moderate64
Whiterocks
OZONE
Moderate67
Zion National Park
OZONE
Good49
VA
Charlottesville
OZONE
Good27
Giles Co.
OZONE
Good34
Hampton Roads
PM2.5
Good49
Harrisonburg
PM2.5
Good29
Natural Bridge
OZONE
Good31
Northern Virginia
PM2.5
Good32
Prince Edward Co.
OZONE
Good25
Richmond
PM2.5
Good36
Roanoke
OZONE
Good33
Shenandoah National Park
OZONE
Good31
Winchester
PM2.5
Good31
Wythe Co.
OZONE
Good29
VT
Bennington
OZONE
Good30
Burlington
OZONE
Good25
Rutland
OZONE
Good31
WA
Aberdeen
PM2.5
Good14
Anacortes
OZONE
Good14
Bellingham
PM2.5
Good0
Bremerton-Silverdale-Bainbridge Island
PM2.5
Good11
Cascade of east King-Pierce counties
OZONE
Good25
Chehalis
PM2.5
Good14
Clarkston
PM2.5
Moderate57
Colville
PM2.5
Moderate88
Confederated Tribes and Bands of Yakama Nations
PM2.5
Good0
Custer
OZONE
Good18
Dayton
OZONE
Good29
Ellensburg
PM2.5
Moderate81
Everett-Marysville-Lynnwood
PM10
Good4
Kennewick
PM2.5
Good35
Longview
PM2.5
Good16
Makah Indian Tribe of Makah Indian Reservation
PM2.5
Good17
Mesa
PM2.5
Good24
Moses Lake
PM2.5
Moderate56
Mount Vernon
PM2.5
Good14
Olympia-Lacey-Tumwater
OZONE
Good23
Omak
PM2.5
Moderate53
Pomeroy
PM2.5
Good31
Port Angeles
PM2.5
Good18
Port Townsend
PM2.5
Good14
Pullman
PM2.5
Good28
Quincy
PM2.5
Moderate52
Raymond
PM2.5
Good15
Ritzville
PM2.5
Moderate52
Rosalia
PM2.5
Good32
Seattle-Bellevue-Kent Valley
OZONE
Good24
Shelton
PM2.5
Good15
Spokane
PM2.5
Moderate73
Sunnyside
PM2.5
Good20
Tacoma-Puyallup
PM2.5
Good18
Taholah
PM2.5
Good16
Twisp
PM2.5
Good29
Vancouver
PM2.5
Good20
Walla Walla
PM2.5
Good22
Wenatchee
PM2.5
Good23
Yacolt
PM2.5
Good13
Yakima
PM2.5
Good31
WI
Central Waters North
OZONE
Good20
Central Waters South
PM2.5
Good46
Chippewa Valley and Eastern Twin Cities
PM2.5
Good27
Driftless Area North
PM2.5
Good36
Driftless Area South
PM2.5
Moderate52
Green Bay and Fox Cities
OZONE
Good25
Kenosha-Racine Lakeside
PM2.5
Moderate55
Kettle Moraine North
PM2.5
Good28
Kettle Moraine South
PM2.5
Good47
Kewaunee-Door
OZONE
Good26
Madison Area
PM2.5
Good49
Milwaukee-Ozaukee
PM2.5
Good41
Northwoods East
OZONE
Good25
Northwoods West
OZONE
Good27
Sheboygan-Manitowoc
OZONE
Good22
WV
Charleston
PM2.5
Good38
Greenbrier County
OZONE
Good29
Martinsburg
OZONE
Good31
Morgantown
OZONE
Good30
Moundsville
PM2.5
Moderate56
Parkersburg
OZONE
Good25
Weirton
PM2.5
Moderate77
Wheeling
OZONE
Good18
WY
Big Piney
OZONE
Good42
Boulder
OZONE
Good44
Cheyenne
OZONE
Good47
Cody
PM2.5
Good27
Daniel South
OZONE
Good42
Douglas
OZONE
Good44
Gillette
OZONE
Good47
Jackson
OZONE
Good39
Johnson County
OZONE
Good48
Juel Spring
OZONE
Good44
Lander
OZONE
Good44
Medicine Bow National Forest
OZONE
Moderate61
Moxa Arch
OZONE
Good43
Pinedale
OZONE
Good46
Riverton
PM10
Moderate88
Rock Springs
PM2.5
Good27
Sheridan
PM2.5
Good29
Wamsutter
OZONE
Good49
Current AirNow data are preliminary and may be revised. Source: EPA AirNow and participating air quality agencies.