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Air quality in Castro

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

Last update at 00:00, May 25 (local time)

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AIR QUALITY DATA SOURCE

* AQI modeled using satellite data Learn more

Castro does not have air sensor data

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00:00, May 25 (local time)

US AQI

57*

live AQI index
Moderate

Air pollution level	Air quality index	Main pollutant
Moderate	57* US AQI	PM2.5

Pollutants		Concentration
PM2.5		12.6*µg/m³

PM2.5

x2.5

PM2.5 concentration in Castro is currently 2.5 times the WHO annual air quality guideline value

	Sensitive groups should reduce outdoor exercise
	Close your windows to avoid dirty outdoor air GET A MONITOR
	Sensitive groups should wear a mask outdoors GET A MASK
	Sensitive groups should run an air purifier GET AN AIR PURIFIER

Day	Pollution level	Weather	Temperature	Wind
Today	Moderate 57 AQI US	20%	64.4° 42.8°	6.7 mp/h
Sunday, May 26	Moderate 58 AQI US	60%	51.8° 50°	8.9 mp/h
Monday, May 27	Moderate 57 AQI US	100%	57.2° 50°	8.9 mp/h
Tuesday, May 28	Good 42 AQI US		59° 42.8°	8.9 mp/h
Wednesday, May 29	Good 39 AQI US		64.4° 37.4°	4.5 mp/h
Thursday, May 30	Moderate 53 AQI US		66.2° 41°	2.2 mp/h
Friday, May 31	Moderate 67 AQI US		71.6° 42.8°	4.5 mp/h