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Air quality in Ontario

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

Last update at 17:00, Apr 19 (local time)

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#	city	US AQI
1	Yucaipa, California	83
2	San Bernardino, California	77
3	Redlands, California	73
4	La Crescenta-Montrose, California	70
5	Lake Arrowhead, California	70
6	The Woodlands, Texas	70
7	Corpus Christi, Texas	68
8	Three Rivers, California	68
9	Palmdale, California	67
10	Pasadena, California	67

17:00, Apr 19 (local time)

US AQI

45*

live AQI index
Good

Air pollution level	Air quality index	Main pollutant
Good	45* US AQI	PM2.5

Pollutants		Concentration
PM2.5		10.8*µg/m³

PM2.5

x2.2

PM2.5 concentration in Ontario is currently 2.2 times the WHO annual air quality guideline value

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Day	Pollution level	Weather	Temperature	Wind
Thursday, Apr 18	Good 45 AQI US	80%	57.2° 44.6°	17.9 mp/h
Today	Good 45 AQI US		44.6° 37.4°	20.1 mp/h
Saturday, Apr 20	Good 6 AQI US		48.2° 35.6°	20.1 mp/h
Sunday, Apr 21	Good 12 AQI US		42.8° 33.8°	15.7 mp/h
Monday, Apr 22	Good 20 AQI US	90%	53.6° 41°	17.9 mp/h
Tuesday, Apr 23	Good 28 AQI US	100%	48.2° 30.2°	26.8 mp/h
Wednesday, Apr 24	Good 5 AQI US	100%	39.2° 30.2°	29.1 mp/h
Thursday, Apr 25	Good 6 AQI US		44.6° 35.6°	17.9 mp/h