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Air quality in Ontario

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

Last update at 00:00, Apr 20 (local time)

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#	city	US AQI
1	Republic, Washington	105
2	Palm Desert, California	99
3	Springville, California	88
4	Greensboro, North Carolina	85
5	Cary, North Carolina	70
6	Tonasket, Washington	69
7	Fuquay-Varina, North Carolina	68
8	Wichita, Kansas	67
9	Raleigh, North Carolina	65
10	Harrisburg, Pennsylvania	64

00:00, Apr 20 (local time)

#	station	US AQI
1	Park Avenue West	22

00:00, Apr 20 (local time)

US AQI

live AQI index
Good

Air pollution level	Air quality index	Main pollutant
Good	22 US AQI	PM2.5

Pollutants		Concentration
PM2.5		5.3µg/m³

PM2.5

x1.1

PM2.5 concentration in Ontario is currently 1.1 times the WHO annual air quality guideline value

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Day	Pollution level	Weather	Temperature	Wind
Wednesday, Apr 17	Good 18 AQI US		66.2° 46.4°	11.2 mp/h
Thursday, Apr 18	Good 17 AQI US		57.2° 44.6°	15.7 mp/h
Friday, Apr 19	Good 22 AQI US		46.4° 35.6°	17.9 mp/h
Today	Good 22 AQI US		46.4° 35.6°	17.9 mp/h
Sunday, Apr 21	Good 6 AQI US		50° 32°	11.2 mp/h
Monday, Apr 22	Good 21 AQI US		55.4° 33.8°	8.9 mp/h
Tuesday, Apr 23	Good 25 AQI US	100%	50° 42.8°	15.7 mp/h
Wednesday, Apr 24	Good 16 AQI US	100%	46.4° 30.2°	15.7 mp/h
Thursday, Apr 25	Good 5 AQI US		48.2° 28.4°	11.2 mp/h
Friday, Apr 26	Good 6 AQI US	100%	51.8° 30.2°	6.7 mp/h