Grey Bruce Public Health Media Release - Poor air quality expected to continue into the weekend in Grey-Bruce

July 17, 2026 - Grey Bruce Public Health is advising residents to continue to monitor local air quality forecasts and weather alerts and take recommended steps to safeguard their health as the area continues to experience poor air quality due to wildfire smoke.

The province’s Air Quality Health Index (AQHI) for Grey-Bruce, measured at the Tiverton station, is expected to be at the “very high risk” level into Friday night and then remain at “high risk” throughout Saturday, July 18.

When the AQHI is at the high-risk level, Grey Bruce Public Health recommends the following:

• For the At-Risk population, which includes people with heart or breathing problems: Reduce or reschedule strenuous activities outdoors. Children and the elderly should also take it easy.
• For the general population: Consider reducing or rescheduling strenuous activities outdoors if you experience symptoms, such as coughing and throat irritation.

Wildfire smoke can adversely affect everyone’s health, even at low concentrations.

In addition to the recommended precautions, Grey-Bruce residents can limit their exposure to wildfire smoke by taking the following measures:

• Keep windows and doors closed if the indoor temperature is comfortable;
• Utilize recirculation settings on HVAC systems;
• Install clean, high-quality air filters in ventilation systems;
• Consider using air purifiers with HEPA filters; and
• Seek refuge in community centres, libraries, and shopping malls, where cleaner filtered air is often available.

Grey Bruce Public Health has developed a dedicated Poor Air Quality webpage, with answers to Frequently Asked Questions about the health effects of wildfire smoke.

The webpage also includes a list of designated relief centres in Grey-Bruce.

An Orange-level air quality warning remains in place for Grey-Bruce by Environment & Climate Change Canada.

People more likely to be impacted by wildfire smoke include those aged 65 and older, pregnant people, infants and young children, and people with an existing illness or chronic health condition.

The poor air quality can cause people to experience mild symptoms, such as eye, nose and throat irritation, headaches or a mild cough. More serious, but less common symptoms, include wheezing, chest pains or severe cough. Anyone experiencing a medical emergency should seek immediate medical assistance.

Residents can monitor the local air quality by visiting the following link: Tiverton, Ontario - Air Quality Health Index (AQHI). AQHI data is posted every hour, 24 hours a day, seven days a week. The AQHI measures air quality on a scale of 1 to 10+. The higher the number, the greater the health risk.

For More Information:

Denis Langlois, Communications Co-ordinator,
Grey Bruce Health Unit,
519-376-9420 or 1-800-263-3456 ext. 1315,
Communications@publichealthgreybruce.on.ca