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Air quality in Foster City

Air quality index (AQI) and PM2.5 air pollution in Foster City

Last update at 00:00, Apr 19 (local time)

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#	city	US AQI
1	Palm Desert, California	99
2	Porterville, California	86
3	Frederick, Maryland	84
4	Casa Grande, Arizona	82
5	Sequoia National Park, California	80
6	Three Rivers, California	76
7	Charles Town, West Virginia	72
8	South Gate, California	72
9	Visalia, California	70
10	Hagerstown, Maryland	66

00:00, Apr 19 (local time)

00:00, Apr 19 (local time)

US AQI

live AQI index
Good

Air pollution level	Air quality index	Main pollutant
Good	17 US AQI	PM2.5

Pollutants		Concentration
PM2.5		4µg/m³

✓

PM2.5 concentration in Foster City air currently meets the WHO annual air quality guideline value

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Day	Pollution level	Weather	Temperature	Wind
Tuesday, Apr 16	Good 20 AQI US		73.4° 53.6°	6.7 mp/h
Wednesday, Apr 17	Good 20 AQI US		68° 53.6°	6.7 mp/h
Thursday, Apr 18	Good 21 AQI US		66.2° 50°	8.9 mp/h
Today	Good 17 AQI US		66.2° 50°	8.9 mp/h
Saturday, Apr 20	Good 20 AQI US		66.2° 50°	8.9 mp/h
Sunday, Apr 21	Good 14 AQI US		68° 51.8°	6.7 mp/h
Monday, Apr 22	Good 26 AQI US		66.2° 50°	8.9 mp/h
Tuesday, Apr 23	Good 17 AQI US		60.8° 50°	15.7 mp/h
Wednesday, Apr 24	Good 15 AQI US		57.2° 50°	13.4 mp/h
Thursday, Apr 25	Good 11 AQI US	30%	55.4° 48.2°	6.7 mp/h