San FranciscoMemorial CourtKoshland ParkStrauss PlaygroundCalifornia Volunteers MemorialRecreation Park (historical)Market Street Theatre and Loft Historic DistrictO'Farrell-Larkin Mini-ParkHall of Justice HeliportPainted LadiesAlamo SquareSeals Stadium (historical)Alamo SquareAlamo Square Historic DistrictDuboce ParkThe Flood BuildingKimbell PlaygroundMission DistrictNoe-Beaver Mini-ParkBush Street-Cottage Row Historic DistrictMission PlaygroundMission Dolores ParkCity and County of San FranciscoChinatownNoe ValleyVisitacion ValleyDaly CityFort McDowellBrisbaneSausalitoBroadmoorTiburonColmaBelvedereSholunHilaritaMarin CityEmeryvilleSouth San FranciscoOakland
Air Quality in San Francisco, California, United States
Pollutants in San Francisco, United States
PM10
0.26 μg/ft3
PM25
0.09 μg/ft3
NO2
2.31 ppb
SO2
0.13 ppb
CO
0.19 ppb
O3
Primary Pollutant
29.5 ppb
Low riskHigh risk
Pollen Index in San Francisco, United States
Tree
4/5
012345
Weed
0/5
012345
Grass
0/5
012345
Air Quality Forecast in San Francisco, United States
Tue, April 23
MorningNoonEveningNight
AQI
On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 28 and 32.
28
30
32
31
Pollen
Tree pollen on this day is expected to have medium risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.
Tree
0
1
3
2
Weed
0
0
0
0
Grass
0
0
0
0
PM10
0.02 μg/ft3
0.01 μg/ft3
0.01 μg/ft3
0.02 μg/ft3
PM25
0.01 μg/ft3
0.00 μg/ft3
0.01 μg/ft3
0.02 μg/ft3
NO2
0.66 ppb
0.12 ppb
0.39 ppb
1.11 ppb
SO2
0.03 ppb
0.02 ppb
0.02 ppb
0.03 ppb
CO
0.12 ppb
0.12 ppb
0.12 ppb
0.13 ppb
O3
30.34 ppb
34.74 ppb
35.09 ppb
31.43 ppb