Date: February 19, 2019

A few clouds. Increasing cloudiness late this evening. Wind up to 15 km/h. Low minus 12. Wind chill minus 10 in the evening and minus 18 overnight.


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News Releases Archive

News Releases

Action Steps for Air Quality Warnings

This page was reviewed or revised on Friday, May 25, 2018 4:11 PM

Point Edward, ON - Lambton Public Health is encouraging residents to take the proper precautions to protect their health on days when air quality is poor.

The Ministry of the Environment and Climate Change issues forecasted Air Quality Health Index (AQHI) values for 38 regions, including Sarnia, every hour of each day. The AQHI values range from low risk to very high risk and each connects to suggested steps to reduce exposure and risk.

The advisories issued are based on the expected duration:

  • Expected to last for 1-2 hours - Special Air Quality Statement (SAQS)
  • Expected to last 3 or more hours - Smog and Air Health Advisory (SAHA)

"During Air Quality Health Index advisories some individuals may experience eye irritation and breathing difficulty," says Dr. Ranade, Medical Officer of Health for Lambton County. "Strenuous outdoor activity should be avoided, especially for those with heart or lung conditions."

Possible actions to take during a high risk air quality situation could include reducing, rescheduling, or avoiding strenuous activities outdoors. The level of risk and appropriate action also depends on the person. Children, the elderly, and people with heart and breathing problems are at greater risk.

For more information on the Air Quality Health Index, actions to minimize risk, or to subscribe to notifications affecting Sarnia, visit or call 1-800-387-7768.

Local ambient air quality data can be accessed on the Clean Air Sarnia and Area website at


Please contact:

Theresa Warren
Public Health Inspector
County of Lambton
519-383-8331 ext. 3576