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Air quality in Thunder Bay

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

Last update at 22:00, Jun 1 (local time)

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#	city	US AQI
1	London, Ontario	66
2	Burlington, Ontario	56
3	Saint-Bruno-de-Montarville, Quebec	56
4	Laval, Quebec	53
5	Saint John, New Brunswick	53
6	Sherbrooke, Quebec	53
7	Grimshaw, Alberta	52
8	Oshawa, Ontario	52
9	Edmundston, New Brunswick	51
10	Oakville, Ontario	51

22:00, Jun 1 (local time)

#	station	US AQI
1	Bears' Cave	64
2	Ontario Ministry of the Environment Thunder Bay	30
3	Simon Fraser Drive	26

22:00, Jun 1 (local time)

US AQI

live AQI index
Good

Air pollution level	Air quality index	Main pollutant
Good	30 US AQI	O3

Pollutants		Concentration
PM2.5		2.3µg/m³
O3		74µg/m³

✓

PM2.5 concentration in Thunder Bay air currently meets the WHO annual air quality guideline value

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Day	Pollution level	Weather	Temperature	Wind
Thursday, May 30	Good 26 AQI US		64.4° 44.6°	8.9 mp/h
Friday, May 31	Good 29 AQI US		57.2° 50°	6.7 mp/h
Today	Good 30 AQI US
Sunday, Jun 2	Good 28 AQI US		62.6° 46.4°	11.2 mp/h
Monday, Jun 3	Good 38 AQI US	100%	51.8° 44.6°	6.7 mp/h
Tuesday, Jun 4	Good 48 AQI US	100%	57.2° 46.4°	6.7 mp/h
Wednesday, Jun 5	Good 30 AQI US	100%	62.6° 51.8°	11.2 mp/h
Thursday, Jun 6	Good 11 AQI US	80%	50° 44.6°	11.2 mp/h
Friday, Jun 7	Good 6 AQI US	70%	55.4° 44.6°	11.2 mp/h
Saturday, Jun 8	Good 8 AQI US	100%	55.4° 46.4°	15.7 mp/h