Gilroy-9th Street, Santa Clara, California Air Pollution:
Real-time Air Quality Index (AQI)

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Gilroy-9th Street, Santa Clara, California AQI: Gilroy-9th Street, Santa Clara, California Real-time Air Quality Index (AQI).
30
Good
Updated on Tuesday 0:00
Primary pollutant: o3
currentpast 2 daysminmax
PM2.5 AQI
21Gilroy-9th Street, Santa Clara, 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.563
PM10 AQI
-Gilroy-9th Street, Santa Clara, California, California PM10 (respirable particulate matter) measured by : • CARB - California Air Resources Board • Air Now - US EPA. Values are converted to the US EPA AQI standard.14
O3 AQI
30Gilroy-9th Street, Santa Clara, California, California O3 (ozone) measured by : • CARB - California Air Resources Board • Air Now - US EPA. Values are converted to the US EPA AQI standard.136
Weather Information
Temp.
8Gilroy-9th Street, Santa Clara, California, California t (temp.) measured by Citizen Weather Observer Program (CWOP/APRS).613
Pressure
1017Gilroy-9th Street, Santa Clara, California, California p (pressure:) measured by Citizen Weather Observer Program (CWOP/APRS).10151021
Humidity
96Gilroy-9th Street, Santa Clara, California, California h (humidity) measured by Citizen Weather Observer Program (CWOP/APRS).1799
Wind
0Gilroy-9th Street, Santa Clara, California, California w (wind) measured by Citizen Weather Observer Program (CWOP/APRS).01
MarkerMarkerMarkerMarker
map © OpenStreetMap contributors

Air Quality Forecast
TUE 18
13°C
3°C
WED 19
14°C
3°C
THU 20
15°C
4°C
FRI 21
16°C
4°C
SAT 22
17°C
6°C
PM2.5
O3
Tuesday 18Wednesday 19Thursday 20Friday 21Saturday 22
hour
03691215182103691215182103691215182103691215182103691215
Wind Speed (m/s)
12111222222123101222233322223332222223






































Temp.
5°3°3°9°13°12°9°5°4°3°3°11°14°13°8°8°8°6°4°11°15°15°10°6°5°4°4°11°15°16°11°7°6°7°9°13°17°17°
relative humidity
9495937048536884939392625347757374909659403864869293945950517391969790704141
barometric pressure
10241025102810291029102810281029102910281028102710261026102510261026102410251025102410221022102310231022102210231021102010201022102110201020102110191018
total precipitation
0.1
UVI:
6


7:15 ~ 19:16
UVI:
5


7:13 ~ 19:17
UVI:
6


7:12 ~ 19:18
UVI:
5


7:10 ~ 19:19
UVI:
0


7:09 ~ 19:20
Forecast plotted using timezone -07:00
Latest forecast updates:
Wind: 4 hours ago [Mar 18, 2025 4:41 AM]
fine particulate matter: 12 hours ago [Mar 17, 2025 8:53 PM]
ozone: 12 hours ago [Mar 17, 2025 8:58 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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