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Air Quality Health Index for Ontario


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

 
FLCN21 CWTO 051000
Air Quality Health Index forecast for Ontario issued jointly by
Environment Canada and the Province of Ontario at 6:00 a.m. EDT
Monday 5 May 2025 for today and Tuesday.
The next scheduled forecast will be issued at 5:00 p.m. EDT.

Toronto
Toronto Downtown
Toronto East
Toronto North
Toronto West
Hamilton
Hamilton Downtown
Hamilton Mountain
Hamilton West
Mississauga
Brampton.
Today..Maximum Air Quality Health Index 3 or low risk.
Tonight..Maximum Air Quality Health Index 2 or low risk.
Tuesday..Maximum Air Quality Health Index 3 or low risk.
Tuesday night..Maximum Air Quality Health Index 3 or low risk.

Windsor
Windsor Downtown
Windsor West
Sarnia
Grand Bend
Brantford
Kitchener
Guelph
St. Catharines
Burlington
Oakville
Milton
Oshawa
Newmarket
Barrie
Peterborough.
Today..Maximum Air Quality Health Index 2 or low risk.
Tonight..Maximum Air Quality Health Index 2 or low risk.
Tuesday..Maximum Air Quality Health Index 3 or low risk.
Tuesday night..Maximum Air Quality Health Index 3 or low risk.

Chatham
Port Stanley
London
Tiverton
Dorset
Parry Sound
Belleville
Kingston
Cornwall
Ottawa
Gatineau
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.
Tuesday..Maximum Air Quality Health Index 2 or low risk.
Tuesday 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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