Toggle navigation
Places
AQI (China)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
English
Français
Deutsch
日本語
한국어
简体中文
繁體中文
North America
United States
California
San Mateo County
Half Moon Bay
AQI (China)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Half Moon Bay
San Mateo County, California
2024-06-20 19:00
AQI (China)
Excellent
Pollutants
O3
μg/m³
64.3
NO2
μg/m³
7.8
PM2.5
μg/m³
2
CO
μg/m³
250
Weather
℃
℃
℉
18℃
67%
33 kph
7 of 11
Historical Data
Hourly
Hourly
Daily
AQI (China)
AQI (China)
O3
NO2
PM2.5
CO
Data Sources
http://www.airnow.gov/
Get the App
Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.
iPhone, iPad
Android
Scan QR Code to Download App
iOS
Google Play
Download APK
Cities Nearby
Half Moon Bay
AQI 21
El Granada
AQI 21
Highlands-Baywood Park
AQI 21
Moss Beach
AQI 21
Montara
AQI 16
Hillsborough
AQI 21
Emerald Hills
AQI 21
San Mateo
AQI 21
Burlingame
AQI 21
Belmont
AQI 21
Millbrae
AQI 16
Air Matters © 2024