The City of Toronto Air Quality Information Line provides daily information on the smog alert status for the City.
Call 416-338-SMOG (7664) for the most up-to-date information.
What is SMOG?
- The word itself was coined Dr. Henry Antoine Des Voeux in his 1905 paper: smoke + fog = smog
- It is often understood as a form of air pollution produced by the reaction of sunlight with chemicals released into the atmosphere from burning of fossil fuels
- In reality, smog is: Ground-level ozone, Sulfur dioxide, Nitrogen dioxide Carbon monoxide
- see Smog to learn all you ever wanted to know and a lot you didn't ever want to know about smog. Ah yes, ignorance is sometimes bliss...
Healths Effects
- It can affect respiratory functions so if you have asthma or any other lung related ailments smog is especially bad for you.
Smog Days for 2007
| Smog Alert | No. of Days |
| May 8, 9,10, 23, 24, 25, 30, 31 | 8 |
| June 1, 2, 3, 13, 14, 15, 16, 17, 25, 26, 27 | 11 |
| July 10, 11 | 2 |
| August 1, 2, 3, 29 | 4 |
| September 6, 7, 19 | 3 |
| Year To Date | 28 |
