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Air quality in Castle Rock

Air quality index (AQI) and PM2.5 air pollution in Castle Rock

Last update at 16:00, May 31 (local time)

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#	city	US AQI
1	Hollywood, California	97
2	Glendora, California	82
3	Altadena, California	77
4	Pasadena, California	76
5	Monrovia, California	75
6	La Canada Flintridge, California	74
7	La Crescenta-Montrose, California	74
8	San Fernando, California	74
9	Sierra Madre, California	74
10	Glendale, California	73

16:00, May 31 (local time)

#	station	US AQI
1	Delameter Road	25

16:00, May 31 (local time)

US AQI

live AQI index
Good

Air pollution level	Air quality index	Main pollutant
Good	25 US AQI	PM2.5

Pollutants		Concentration
PM2.5		4.6µg/m³

✓

PM2.5 concentration in Castle Rock air currently meets the WHO annual air quality guideline value

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Day	Pollution level	Weather	Temperature	Wind
Tuesday, May 28	Good 10 AQI US		59° 41°	11.2 mp/h
Wednesday, May 29	Good 14 AQI US		64.4° 41°	6.7 mp/h
Thursday, May 30	Good 16 AQI US		75.2° 41°	4.5 mp/h
Thursday, May 30	Good 18 AQI US		75.2° 41°	4.5 mp/h
Today	Good 25 AQI US	70%	60.8° 48.2°	2.2 mp/h
Saturday, Jun 1	Good 14 AQI US	100%	55.4° 51.8°	8.9 mp/h
Sunday, Jun 2	Good 8 AQI US	100%	57.2° 48.2°	6.7 mp/h
Monday, Jun 3	Good 12 AQI US	100%	60.8° 46.4°	6.7 mp/h
Tuesday, Jun 4	Good 25 AQI US		73.4° 41°	6.7 mp/h
Wednesday, Jun 5	Good 40 AQI US		82.4° 44.6°	4.5 mp/h
Thursday, Jun 6	Good 34 AQI US		77° 51.8°	4.5 mp/h