Current Air Quality Index Readings for Ontario

Wednesday, May 16, 2012, 10:00 pm

Station Name	AQI	Cause
Barrie	19	Ozone O₃
Belleville	20	Ozone O₃
Brampton	20	Ozone O₃
Brantford	20	Ozone O₃
Burlington	8	Ozone O₃
Chatham	20	Ozone O₃
Cornwall	18	Ozone O₃
Dorset	16	Ozone O₃
Grand Bend	27	Ozone O₃
Guelph	22	Ozone O₃
Hamilton Downtown	18	Ozone O₃
Hamilton Mountain	21	Ozone O₃
Hamilton West	20	Ozone O₃
Kingston	21	Ozone O₃
Kitchener	22	Ozone O₃
London	18	Ozone O₃
Mississauga	18	Ozone O₃
Morrisburg	20	Ozone O₃
Newmarket	21	Ozone O₃
North Bay	14	Ozone O₃
Oakville	20	Ozone O₃
Oshawa	21	Ozone O₃
Ottawa Central	20	Ozone O₃
Ottawa Downtown	20	Ozone O₃
Parry Sound	22	Ozone O₃
Petawawa	17	Ozone O₃
Peterborough	22	Ozone O₃
Port Stanley	20	Ozone O₃
Sarnia	25	Ozone O₃
Sault Ste Marie	21	Ozone O₃
St. Catharines	24	Ozone O₃
Sudbury	18	Ozone O₃
Thunder Bay	17	Ozone O₃
Tiverton	20	Ozone O₃
Toronto Downtown	21	Ozone O₃
Toronto East	14	Ozone O₃
Toronto North	20	Ozone O₃
Toronto West	9	Nitrogen Dioxide NO₂
Windsor Downtown	24	Ozone O₃
Windsor West	22	Ozone O₃

Note: AQI readings on this web page are based on automatically polled data and have not undergone final verification.

Air Quality Index (AQI)