Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Purifiers
For Business
News
Support
Air quality near 40 Castanea Ridge Road, San Mateo
Air quality index (AQI) and PM2.5 air pollution near 40 Castanea Ridge Road, San Mateo
5 people follow this station
Air Quality Map
Real-time 40 Castanea Ridge Road air pollution map
AIR QUALITY DATA CONTRIBUTORS
Find out more about contributors and data sourcesPollen
What is the pollen count in 40 Castanea Ridge Road today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather near 40 Castanea Ridge Road, San Mateo?
| Weather | Few clouds |
| Temperature | 41°F |
| Humidity | 81% |
| Wind | 11 mp/h |
| Pressure | 29.8 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Orcutt, California | 100 |
| 2 | Oklahoma City, Oklahoma | 79 |
| 3 | Corpus Christi, Texas | 76 |
| 4 | San Antonio, Texas | 76 |
| 5 | Tampa, Florida | 75 |
| 6 | Boerne, Texas | 74 |
| 7 | Edmond, Oklahoma | 72 |
| 8 | Leavenworth, Kansas | 70 |
| 9 | Georgetown, Texas | 69 |
| 10 | Leander, Texas | 66 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live aqi station ranking
Real-time San Mateo air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Church Avenue | 21 |
| 2 | 7th Avenue | 20 |
| 3 | North Central | 19 |
| 4 | Meowchi Heaven - Park Place - San Mateo | 18 |
| 5 | Parrott Drive | 18 |
| 6 | West Capistrano Way | 18 |
| 7 | 13th Avenue | 17 |
| 8 | Mid East Santa Inez Avenue | 17 |
| 9 | Station Park Cir. San Mateo CA | 17 |
| 10 | 37th Avenue | 16 |
(local time)
SEE WORLD AQI RANKING
US AQI
16
live AQI index
Good
Overview
What is the current air quality near 40 Castanea Ridge Road, San Mateo?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 16 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.8µg/m³ | |
Forecast
40 Castanea Ridge Road, San Mateo air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Thursday, Apr 4 | Good 7 AQI US |  100% | 42.8° 33.8° |  13.4 mp/h |
| Friday, Apr 5 | Good 8 AQI US | 100% | 42.8° 33.8° | 15.7 mp/h |
| Saturday, Apr 6 | Good 13 AQI US |  | 50° 32° | 6.7 mp/h |
| Sunday, Apr 7 | Good 15 AQI US | | 50° 33.8° | 11.2 mp/h |
| Monday, Apr 8 | Good 12 AQI US | | 57.2° 35.6° | 8.9 mp/h |
| Tuesday, Apr 9 | Good 11 AQI US |  | 64.4° 41° | 4.5 mp/h |
| Wednesday, Apr 10 | Good 15 AQI US | | 66.2° 44.6° | 4.5 mp/h |
Interested in hourly forecast? Get the app
40 Castanea Ridge Road air quality data attribution
Contributor
Anonymous Contributor
Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in San Mateo?
No locations are available.
Connect With IQAir
Sign up for our newsletter
AQI US, Metric