Air Pollution in California: Real-time Air Quality Index Visual Map

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Air Quality Index

AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
0 - 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
51 -100ModerateAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

Stations on the map

There are 136 stations on the map: Sequoia National Park-Ash Mountain, Tulare, California (74) - Mexicali-UABC, Mexicali, California (72) - Manteca AMS, San Joaquin, California (57) - Salton City, Imperial, California (57) - Glendora-Laurel, Los Angeles (53) - San Francisco-Arkansas Street, San Francisco, California (50) - Anderson-North Street, Shasta, California (49) - Berkeley-Aquatic Park, Alameda, California (46) - Madera - Pump Yard, Madera, California (46) - Madera City, Madera, California (46) - Folsom-Natoma Street, Sacramento, California (46) - Ontario-Route 60 Near Road, San Bernardino, California (44) - Sonny Bono, Imperial, California (42) - Lake Gregory (Crestline), San Bernardino (42) - Niland-English Road, Imperial, California (42) - Portola - Gulling Street, Plumas, California (42) - Truckee - Fire Station, Nevada, California (42) - Oakland - East, Alameda, California (42) - Stockton-Hazelton, San Joaquin, California (38) - Bishop-Line, Inyo, California (38) - Grass Valley-Litton Building, Nevada, California (38) - Santa Clarita-Placerita, Los Angeles (36) - El Cajon-Lexington Elementary School, San Diego, California (36) - Rubidoux - Mission Blvd, Riverside (34) - Lincoln-1445 1st Street, Placer, California (34) - Santa Maria - South Broadway, Santa Barbara, California (34) - Oakland - West, Alameda, California (34) - Banning-Airport, Riverside (34) - Oakland-Laney College, Alameda, California (34) - San Jose - Jackson St, Santa Clara, California (34) - Mojave, Kern, California (34) - San Pablo-Rumrill, Contra Costa, California (34) - Roseville-N Sunrise Ave, Placer, California (34) - King City - Pearl, Monterey, California (33) - Lake Elsinore-W Flint Street, Riverside (32) - Long Beach-Route 710 Near Road, Los Angeles, California (31) - Alpine-Victoria Drive, San Diego, California (31) - Bombay Beach, Imperial, California (31) - Temecula - Lake Skinner, Riverside, California (31) - El Cajon-Redwood Avenue, San Diego, California (31) - Mira Loma-Van Buren, Riverside, California (31) - San Rafael, Marin, California (30) - Rio Vista-St Francis Way, Solano, California (30) - Auburn - Atwood Rd, Placer, California (30) - Bakersfield-California Avenue, Kern, California (30) - Rio Vista-YS, Solano, California (30) - Hollister-Fairview Road, San Benito, California (30) - Gridley, Butte, California (30) - Carmel Valley-Ford Road, Monterey, California (30) - Salinas #3, Monterey, California (30) - Santa Cruz - Soquel Avenue, Santa Cruz, California (30) - San Luis Obispo-Higuera Street, San Luis Obispo, California (30) - Yuba City, Sutter, California (30) - Turlock-S Minaret Street, Stanislaus, California (30) - Vallejo, Solano, California (30) - Lompoc-South H Street, Santa Barbara, California (30) - Auburn-11645 Atwood Road, Placer, California (30) - Upland, San Bernardino (30) - Calexico-Ethel Street, Imperial, California (29) - Camp Pendleton, San Diego, California (29) - Otay Mesa - Donovan Correctional Facility, San Diego, California (28) - El Rio-Rio Mesa School #2, Ventura, California (28) - Goleta-Fairview, Santa Barbara, California (26) - Anaheim-Loara School, Orange, California (26) - Reseda, Los Angeles (26) - Fresno - Drummond Street, Fresno, California (26) - Simi Valley - Cochran Street, Ventura, California (25) - Elk Grove - Bruceville Road, Sacramento, California (25) - Ojai - East Ojai Av, Ventura, California (25) - Merced - Coffee Road, Merced, California (25) - San Lorenzo Valley Middle School, Santa Cruz, California (25) - Thousand Oaks-Moorpark Road, Ventura, California (25) - Redwood City, San Mateo, California (25) - Mexicali-Cobach, Mexicali, California (25) - Sacramento - 1309 T Street, Sacramento, California (25) - Colfax-City Hall, Placer, California (25) - Sloughhouse, Sacramento, California (25) - Davis-UCD Campus, Yolo, California (25) - Concord, Contra Costa, California (25) - Lincoln - 1445 1st St., Placer, California (25) - Nipomo-Guadalupe Road, San Luis Obispo, California (23) - Clovis-N Villa Avenue, Fresno, California (23) - Visalia, Tulare, California (22) - South Long Beach, Los Angeles, California (22) - Fresno - Garland, Fresno, California (22) - Woodland-Gibson Road, Yolo, California (21) - Gilroy-9th Street, Santa Clara, California (21) - Tracy - Airport, San Joaquin, California (21) - Piru - Pacific, Ventura, California (21) - Hanford-S Irwin Street, Kings, California (21) - Porterville, Tulare, California (21) - CDF - Arroyo Grande, San Luis Obispo, California (20) - Red Bluff - Walnut St, Tehama, California (19) - Naval Test Base, Imperial, California (19) - Keeler-Cerro Gordo Road, Inyo, California (18) - Yosemite Village - Visitor Center, Mariposa, California (17) - Livermore - Rincon, Alameda, California (17) - Santa Barbara-National Guard Armory, Santa Barbara, California (17) - Napa-Jefferson Avenue, Napa, California (17) - Modesto-14th Street, Stanislaus, California (17) - Sacramento-Del Paso Manor, Sacramento, California (17) - Los Angeles-North Main Street (17) - Corcoran-Patterson Avenue, Kings, California (16) - Salton Sea Park, Riverside, California (16) - San Jose-Knox Avenue, Santa Clara, California (15) - Willits - Justice Center, Mendocino, California (13) - Colusa-Sunrise Blvd, Colusa, California (13) - Ukiah - Library, Mendocino, California (13) - San Andreas-Gold Strike Road, Calaveras, California (11) - Atascadero-Lift Station #5, San Luis Obispo, California (11) - Huron - 4th Street, Fresno, California (10) - Lebec, Kern, California (10) - Vacaville-Ulatis Drive, Solano, California (10) - Tranquility, Fresno, California (10) - Quincy-N Church Street, Plumas, California (9) - Sebastopol, Sonoma, California (9) - Chico - East Avenue, Butte, California (9) - Paradise - Theater, Butte, California (8) - Atascadero Lift Station #5, San Luis Obispo, California (7) - Tahoe City-221 Fairway Drive, Placer, California (5) - Chester, Plumas, California (5) - Tahoe City - 221 Fairway Drive, Placer, California (5) - Sebastopol-103 Morris Street, Sonoma, California (5) - Torres - Martinez, Riverside, California (5) - Portola - Nevada Street, Plumas, California (no data) - San Diego - Beardsley, San Diego, California (no data) - Kernville-Forest Service, Kern, California (no data) - Springville-Forest Service, Tulare, California (no data) - Burbank, Los Angeles (no data) - North Long Beach (Long Beach), Los Angeles (no data) - Escondido-E Valley Parkway, San Diego, California (no data) - Pinehurst-Forest Service, Fresno, California (no data) - Atascadero-Lewis Avenue, San Luis Obispo, California (no data) - Willows-Colusa, Glenn, California (no data) - Riverside-Magnolia, Riverside (no data) - Point Reyes, Marin, California (no data)


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Air Quality Rankings

About the Air Quality and Pollution Measurement:

About the Air Quality Levels

AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
0 - 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
51 -100ModerateAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.


Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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