Current Air Quality Index Readings for Ontario

Saturday, December 20, 2014, 10:00 pm

Station Name AQI Category Cause
Barrie14
Ozone O3
Belleville29
Fine Particulate Matter PM2.5
Brampton23
Fine Particulate Matter PM2.5
Brantford18
Ozone O3
Burlington32
Fine Particulate Matter PM2.5
Chatham17
Fine Particulate Matter PM2.5
Cornwall36
Fine Particulate Matter PM2.5
Dorset14
Ozone O3
Grand Bend18
Ozone O3
Guelph17
Ozone O3
Hamilton Downtown28
Fine Particulate Matter PM2.5
Hamilton Mountain29
Fine Particulate Matter PM2.5
Hamilton West26
Fine Particulate Matter PM2.5
Kingston15
Fine Particulate Matter PM2.5
Kitchener18
Ozone O3
London18
Ozone O3
Mississauga27
Fine Particulate Matter PM2.5
Morrisburg27
Fine Particulate Matter PM2.5
Newmarket 18
Fine Particulate Matter PM2.5
North BayN/A
Not Available
Oakville 28
Fine Particulate Matter PM2.5
Oshawa13
Fine Particulate Matter PM2.5
Ottawa Central30
Fine Particulate Matter PM2.5
Ottawa Downtown27
Fine Particulate Matter PM2.5
Parry Sound15
Ozone O3
Petawawa16
Ozone O3
Peterborough23
Fine Particulate Matter PM2.5
Port Stanley20
Ozone O3
Sarnia18
Fine Particulate Matter PM2.5
Sault Ste Marie20
Ozone O3
St. Catharines30
Fine Particulate Matter PM2.5
Sudbury11
Fine Particulate Matter PM2.5
Thunder Bay15
Ozone O3
Tiverton16
Ozone O3
Toronto Downtown14
Fine Particulate Matter PM2.5
Toronto East21
Fine Particulate Matter PM2.5
Toronto North21
Fine Particulate Matter PM2.5
Toronto West20
Fine Particulate Matter PM2.5
Windsor Downtown20
Fine Particulate Matter PM2.5
Windsor West21
Fine Particulate Matter PM2.5

Air Quality Index (AQI) Categories

AQI Colour
0-15 Very Good Very Good
16-31 Good Good
32-49 Moderate Moderate
50-99 Poor Poor
100+ Very Poor Very Poor

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