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Air Quality Health Index for Ontario

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* NOTE: Corrected and/or amended bulletins are listed first *

 
FLCN21 CWTO 051100
Air Quality Health Index forecast for Ontario issued jointly by
Environment Canada and the Province of Ontario at 6:00 a.m. EST
Thursday 5 November 2026 for today and Friday.
The next scheduled forecast will be issued at 5:00 p.m. EST.

Toronto
Toronto Downtown
Toronto East
Toronto North
Toronto West
St. Catharines
Hamilton
Hamilton Downtown
Hamilton Mountain
Hamilton West
Burlington
Oakville
Milton
Mississauga
Brampton
Oshawa
Newmarket.
Today..Maximum Air Quality Health Index 2 or low risk.
Tonight..Maximum Air Quality Health Index 2 or low risk.
Friday..Maximum Air Quality Health Index 2 or low risk.
Friday night..Maximum Air Quality Health Index 2 or low risk.

Windsor
Windsor Downtown
Windsor West
Chatham
Port Stanley
London
Brantford
Kitchener
Guelph
Barrie
Peterborough
Belleville
Kingston
Cornwall
Ottawa
Gatineau.
Today..Maximum Air Quality Health Index 3 or low risk.
Tonight..Maximum Air Quality Health Index 2 or low risk.
Friday..Maximum Air Quality Health Index 3 or low risk.
Friday night..Maximum Air Quality Health Index 2 or low risk.

Sarnia
Grand Bend
Tiverton
Dorset
Parry Sound
North Bay
Sudbury
Sault Ste. Marie
Thunder Bay.
Today..Maximum Air Quality Health Index 2 or low risk.
Tonight..Maximum Air Quality Health Index 2 or low risk.
Friday..Maximum Air Quality Health Index 2 or low risk.
Friday night..Maximum Air Quality Health Index 2 or low risk.

Air Quality Health Index Scale:
1-3  Low health risk
4-6  Moderate health risk
7-10 High health risk
Above 10 Very high health risk

For more information, consult www.airhealth.ca

End
$$$$^^

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