This is an update to my previous blog Smog Alert: Parts of Southern & Western Ontario June 28, 2012.

The existing Smog Alert of June 28, 2012, is now expanded to include the following additional forecast regions in Ontario, Canada:

  • Barrie-Orillia-Midland
  • Belleville-Quinte-Northumberland
  • City of Toronto
  • Dufferin-Innisfil
  • Halton-Peel
  • Peterborough-Kawartha Lakes
  • York-Durham

Air Quality Index (AQI) Category: 50-99 Poor Poor, as shown in this Air Quality Forecast map of June 28, 2012:

Ontario’s Smog Alert: Expanded to Include City of Toronto & Parts of Central Ontario June 28, 2012

Ontario’s Smog Alert: Expanded to Include City of Toronto & Parts of Central Ontario June 28, 2012

Hot, sunny conditions, combined with a west to southwesterly flow of polluted air from the U.S. and local build-up of pollutants are resulting in elevated smog levels across southern Ontario.

This advisory will remain in effect until further notice.

Did you know?

  • A Smog Advisory is related to the Air Quality Index (AQI), which rates how clean the air is.
    • The AQI scale ranges from 0 to 100+.
    • Higher numbers mean higher health risks.
  • A Smog Advisory is issued in your region when the AQI is expected to reach 50 in the next 24 hours.
    • It can be lifted once the AQI is expected to reach or drops below 50.
  • “Smog is made up of a complex mixture of air pollutants that are sometimes visible, such as a brownish-yellow haze over cities; sometimes not.
  • Smog is harmful to the lungs and heart.
    • Even in healthy people, smog can reduce lung function.”

For more information:

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