San Francisco-Arkansas Street, San Francisco, California Air Pollution:
Real-time Air Quality Index (AQI)

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San Francisco-Arkansas Street, San Francisco, California AQI: San Francisco-Arkansas Street, San Francisco, California Real-time Air Quality Index (AQI).
30
Good
Updated on Friday 23:00
temperature: 12°C
currentpast 2 daysminmax
PM2.5 AQI
30San Francisco-Arkansas Street, San Francisco, California, California PM25 (fine particulate matter) measured by : • CARB - California Air Resources Board • Air Now - US EPA. Values are converted to the US EPA AQI standard.546
O3 AQI
18San Francisco-Arkansas Street, San Francisco, California, California O3 (ozone) measured by : • CARB - California Air Resources Board • Air Now - US EPA. Values are converted to the US EPA AQI standard.629
NO2 AQI
8San Francisco-Arkansas Street, San Francisco, California, California NO2 (nitrogen dioxide) measured by : • CARB - California Air Resources Board • Air Now - US EPA. Values are converted to the US EPA AQI standard.227
CO AQI
6San Francisco-Arkansas Street, San Francisco, California, California CO (carbon monoxide) measured by : • CARB - California Air Resources Board • Air Now - US EPA. Values are converted to the US EPA AQI standard.59
Temp.
12San Francisco-Arkansas Street, San Francisco, California, California t (temp.) measured by Citizen Weather Observer Program (CWOP/APRS).816
Pressure
1021San Francisco-Arkansas Street, San Francisco, California, California p (pressure:) measured by Citizen Weather Observer Program (CWOP/APRS).10211026
Humidity
83San Francisco-Arkansas Street, San Francisco, California, California h (humidity) measured by Citizen Weather Observer Program (CWOP/APRS).6291
Wind
1San Francisco-Arkansas Street, San Francisco, California, California w (wind) measured by Citizen Weather Observer Program (CWOP/APRS).05
MarkerMarkerMarkerMarkerMarkerMarkerMarkerMarker
map © OpenStreetMap contributors

Air Quality Forecast
SAT 22
14°C
11°C
SUN 23
15°C
11°C
MON 24
19°C
13°C
TUE 25
19°C
13°C
WED 26
15°C
12°C
PM2.5
O3
Saturday 22Sunday 23Monday 24Tuesday 25Wednesday 26
hour
03691215182103691215182103691215182103691215182103691215
Wind Speed (m/s)
33356885211124412234543233444443342396






































Temp.
11°11°11°12°13°14°12°11°11°11°11°13°15°14°13°13°13°13°13°15°18°19°16°16°15°15°14°16°19°19°16°14°13°12°12°14°15°14°
relative humidity
8182878477768590908887746571828277778272625972757982837463628083889392827175
barometric pressure
10211020102110221021102010201021102010201020102110211020101910201019101910201020102010181017101810171016101610161015101410141015101510151015101610171017
UVI:
5


7:12 ~ 19:23
UVI:
7


7:10 ~ 19:24
UVI:
7


7:09 ~ 19:25
UVI:
6


7:07 ~ 19:26
UVI:
0


7:06 ~ 19:27
Forecast plotted using timezone -07:00
Latest forecast updates:
Wind: 6 hours ago [Mar 22, 2025 5:46 AM]
fine particulate matter: 15 hours ago [Mar 21, 2025 8:43 PM]
ozone: 15 hours ago [Mar 21, 2025 8:49 PM]
click to view the detailed forecast

Air Quality Data provided by: CARB - California Air Resources Board (arb.ca.gov) and Air Now - US EPA (airnow.gov)

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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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