Smog / Air Pollution » Ontario Medical Association » Ontario’s Doctors: Putting Ontario’s patients first

Smog / Air Pollution

The OMA has done many reports on the health effects of air pollution in Ontario, and on how patients can act to protect themselves, through our Smog-Wise information. Since the Ontario Medical Association’s initial release of its Smog-Wise tips in 2003, the medical understanding of how smog impacts the human body has grown considerably.

We now understand that smog pollutants have a very significant impact on heart health and in fact that premature smog deaths are more likely to be from cardiac causes than respiratory ones. Although the general public may not yet fully understand exactly how smog affects them, the concern about smog and other environmental health impacts has increased significantly in the past years.

In response to improved understanding and societal concern, there is more information now publicly available on current and projected air pollutant concentrations. In parts of Ontario, the Provincial Air Quality Index (AQI) and a new Federal Air Quality Health Index (AQHI) are both available.

As confusing as this may be, the OMA Smog-Wise advice remains essentially the same:

  • If you are aware of health conditions that make you, or those in your care, especially vulnerable to smog, you must educate yourself about how to reduce exposure
  • Both the AQI and the new AQHI can be used as indicators of smog conditions, but as everyone’s health response is different, do not assume that Low Risk or Good Air Quality forecasts mean that it is safe for everyone
  • Take a reasonable, but precautionary approach to reducing your exposure and protecting yourself from smog’s ill effects

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