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Air quality near 4031 21st Street, San Francisco
Air quality index (AQI) and PM2.5 air pollution near 4031 21st Street, San Francisco
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Air Quality Map
Real-time 4031 21st Street air pollution map
AIR QUALITY DATA CONTRIBUTORS
Find out more about contributors and data sourcesPollen
What is the pollen count in 4031 21st Street today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather near 4031 21st Street, San Francisco?
| Weather | Few clouds |
| Temperature | 62.6°F |
| Humidity | 69% |
| Wind | 26 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Glendora, California | 83 |
| 2 | Altadena, California | 79 |
| 3 | La Crescenta-Montrose, California | 77 |
| 4 | San Fernando, California | 77 |
| 5 | Pasadena, California | 76 |
| 6 | Monrovia, California | 74 |
| 7 | North Hollywood, California | 74 |
| 8 | Sierra Madre, California | 74 |
| 9 | Glendale, California | 73 |
| 10 | La Canada Flintridge, California | 73 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live aqi station ranking
Real-time San Francisco air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Shore View Ave | 84 |
| 2 | Safer Together/Bernal | 75 |
| 3 | 3398 Baker Street | 68 |
| 4 | Downey Street | 68 |
| 5 | Potrero Hill 2 | 68 |
| 6 | Baker Beach | 58 |
| 7 | Mission District 2 | 54 |
| 8 | Park Hill Avenue | 54 |
| 9 | Moraga Street | 53 |
| 10 | Bernal Street | 52 |
(local time)
SEE WORLD AQI RANKING
US AQI
11
live AQI index
Good
Overview
What is the current air quality near 4031 21st Street, San Francisco?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 11 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 1.9µg/m³ | |
Health Recommendations
What is the current air quality near 4031 21st Street, San Francisco?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
4031 21st Street, San Francisco air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Tuesday, May 28 | Good 11 AQI US | |||
| Wednesday, May 29 | Good 17 AQI US | |||
| Thursday, May 30 | Good 15 AQI US | |||
| Thursday, May 30 | Good 37 AQI US | | 62.6° 51.8° |  13.4 mp/h |
| Today | Good 11 AQI US | | 59° 50° | 20.1 mp/h |
| Saturday, Jun 1 | Good 32 AQI US |  | 62.6° 51.8° | 17.9 mp/h |
| Sunday, Jun 2 | Good 17 AQI US | | 59° 53.6° | 15.7 mp/h |
| Monday, Jun 3 | Good 33 AQI US | | 68° 53.6° | 11.2 mp/h |
| Tuesday, Jun 4 | Moderate 61 AQI US  | | 62.6° 53.6° | 11.2 mp/h |
| Wednesday, Jun 5 | Good 35 AQI US | | 57.2° 50° | 13.4 mp/h |
| Thursday, Jun 6 | Good 22 AQI US | | 59° 51.8° | 15.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
4031 21st Street air quality data attribution
Contributor
Anonymous Contributor
Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in San Francisco?
- 35th & Moraga 1
- 121 Day Street 9
- Garfield Street 10
- Mission District - San Jose Avenue 10
- 4031 21st Street 11
- 44 Fifth Avenue 11
- 1728 Diamond Street 13
- Castro Duncan Open Space 15
- Chenery St 16
- Mendell & La Salle Ave 16
- Outer Sunset 40th & Irving 16
- Pine Street & California Street 16
- 24th Street 18
- Mid 25th Street 18
- Western Addition 19
- Presidio Heights 20
- Cortland Avenue 21
- Ingleside Terraces 21
- Hudson Avenue 22
- 4181 26th Street 24
- Financial District 24
- Mid The Page Street 24
- Potomac Street 24
- States Street 24
- Potrero Hill 18th & Mississippi 25
- Warren Lex World Headquarters 25
- West of Twin Peaks 25
- Golden Gate 26
- Grenard Terrace 26
- 333 Diamond Street 27
- California College of The Arts 27
- Espirit Park Roof 27
- Rivoli Street 27
- Upper Elsie Coyotes 27
- Pacific Avenue 28
- Shipley Street 28
- 847-815 Chenery St 29
- LH Webster 29
- 4010 Eureka Valley 30
- Greenwich and Laguna 30
- 23rd Street & 3rd Street 31
- San Jose Ave and Ocean Ave 31
- The Little School 31
- Twin Peaks 31
- 28th Street at Diamond (Outside) 32
- 5235 Diamond Heights Boulevard 32
- Dolores and 28th 32
- Mississippi Street 32
- Stanyan Street 32
- 34th Avenue & Cabrillo Street 33
- 4362 24th Street 33
- Baker St 33
- Balboa Street 33
- California Street 33
- Clement Street 33
- Cumberland Street 33
- Duboce Triangle 33
- Inner Sunset 2 33
- Kirkham Street 33
- Laguna Street 33
- Maynard Street 2 33
- Sunnyside Elementary School 33
- 116 Marietta Drive 34
- 144 Funston Avenue 34
- 313 Shotwell Street 34
- 351 Magellan Ave 34
- Banks Street 34
- Broadway between Hyde and Larkin 34
- Lakeview near Margaret 34
- McAllister 34
- Oakdale Avenue 34
- 16 Seal Rock Dr 35
- 181-47 Dalewood Way 35
- 915 Cayuga Ave 35
- Green Street 35
- Jackson & Walnut 35
- McAllister Street 35
- Mount Davidson Manor 35
- Parkmerced 35
- Sait Germain Avenue 35
- Sea Cliff 35
- Silver Terrace 35
- Tiffany Avenue 35
- Vicksburg Street 35
- Visitacion Valley 35
- 2318 Fillmore Street 36
- 32nd Avenue 36
- 8th and Kirkham 36
- Bryant & 26h Street Intersection 36
- Cow Hollow 36
- Forest Side 36
- Richland near Leese 36
- Valencia Street 36
- 491 Corbett Avenue 37
- 884 Silver Avenue 37
- Capp Street Garden 37
- Congo Street 37
- Edgehill Open Space Park 37
- Hickory Street 37
- Inner Sunset 37
- Lippard Avenue 37
- Molimo Drive 37
- Mountain Lake Park 37
- Noe Valley 37
- St Helena Cooperative Nursery School 37
- Sunnyside 2 37
- Tank Hill 37
- 12th Ave 38
- 1448 Plymouth Avenue 38
- 15th and Castro St. 38
- 215 Connecticut St 38
- 21st & Balboa 38
- 4066 23rd Street 38
- Ashbury St 38
- Cameo Way 38
- Capitol Avenue 38
- Churchill Park 38
- McLaren Avenue 38
- Mid Liberty Street 38
- Parkmerced-SFSU Bay Conference Center 38
- SF Maritime NHP 38
- Walter Street 38
- 4078 Cesar Chavez 39
- 512 College Avenue 39
- 575 Magellan Avenue 39
- 662 Cayuga Ave 39
- California Tennis Club 1770 Scott 39
- Church Street & Liberty Street 39
- Mission Bernal Hospital 39
- Mission District 39
- Pacific Heights-GEOHealth_VMT_Basadre 39
- Pacific Primary 39
- Page Street 39
- Pioneer Park 39
- Portola Street 39
- Quintara Street 2 39
- Sunnyside 39
- Tennessee Street 39
- Valley Street 39
- 2635 16th Avenue 40
- 29th Avenue 40
- 35 Keyes Ave 40
- Bernal Heights 40
- CesarChavezDolores 40
- Chenery St 500 block 40
- De Haro Blvd 40
- Gladys Street 40
- Grand View Avenue 40
- Haight Street 40
- Pacheco Street 40
- Telegraph Hill 40
- 540 Victoria Street 41
- Anza Street 41
- Cole Valley 41
- Filbert Street 41
- Flood Avenue 41
- Golden Gate Height 41
- Pine Street 41
- Quarry Road 41
- Roosevelt Way 41
- Sanchez Street 41
- Scott Street 41
- Staples Avenue 41
- 100 Block Andover 42
- 1741-1701 Mason St 42
- 19 St Charles Avenue 42
- 3801 21st Street 42
- 6th and Hugo Street 42
- Diamond Street & Conrad Street 42
- Hazelwood at Mangels 42
- Lombard Street 42
- Mission District & Osage Street 42
- Russ Street 1 42
- 29th Ave and Judah 43
- 427 Kirkham Street 43
- 607 Andover Street 43
- Anza Vista-the_balbs 43
- CEEP at Star 43
- Nob Hill 43
- Noe Street 2 43
- Santa Rosa Avenue 43
- 300 block Russia 44
- Brannan St 44
- Jersey and Vicksberg II 44
- Mojave Street 44
- Noe Valley 2 44
- Buchanan and Broadway 45
- Illinois Street 45
- Outer Sunset 4 45
- Ripley Street 45
- Sunnyside St 45
- 18thAve/TaravalUlloa 46
- Castenada Avenue 46
- Outer Sunset-2340 42nd Ave 46
- Rincon Hill 46
- South Beach Marina Apartments 46
- Tompkins Avenue 46
- West of Twin Peaks 2 46
- 150 Parker Ave. 47
- 15th and Noe Street 47
- 1770 McKinnon Avenue 47
- 4256 22nd Street 47
- Kensington Way 47
- House Guerrero 48
- Lakeshore 48
- Miraloma Park O'Shaughnessy 49
- 188 S Park St 51
- Pacific Heights 2 51
- Bernal Street 52
- India Basin 52
- Moraga Street 53
- Mission District 2 54
- Park Hill Avenue 54
- Baker Beach 58
- 3398 Baker Street 68
- Downey Street 68
- Potrero Hill 2 68
- Safer Together/Bernal 75
- Shore View Ave 84
AQI US, Metric