2023-12-05 A Clean Environment
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The Air Quality Health Index (AQHI) is a scale designed by<br />
the Government of Canada showing how the air around us<br />
affects our health. Its aim is to limit exposure to air pollution by<br />
monitoring levels at any given time. The AQHI is calculated by<br />
assessing risks associated with a combination of the following<br />
air pollutants: ozone at ground level, particulate matter (PM) and<br />
nitrogen dioxide (NO2).<br />
In 2022, scores in Perth-Huron (measured at Grand Bend) were,<br />
on average, in the “low risk” category. In the spring and summer<br />
months there were some “moderate risk” scores with one “high<br />
risk” score in late June.<br />
1 2 3 4 5 6 7 8 9 10 +<br />
Low Risk Moderate Risk High Risk<br />
The AQHI is measured on a scale of 1 to 10+. The diagram above<br />
displays this scale.<br />
• Scores of 1–3 = Low risk. This is the ideal air quality.<br />
• Scores of 4–6 = Moderate risk. There is no need to modify<br />
your usual activities unless you experience coughing, throat<br />
irritation or related symptoms.<br />
• Scores of 7–10 = High risk. Reducing strenuous activities is<br />
recommended.<br />
• Scores above 10 = Very High risk. Strenuous activities should<br />
be avoided.<br />
Very<br />
High<br />
Risk<br />
GHG Emissions For PERTH COUNTY Facilities<br />
The following chart displays GHG emissions (in kg) for Perth<br />
County buildings. Due to gaps in data and reporting errors,<br />
accurate data is not currently available for 2014–2016 and 2020.<br />
The jump in numbers for emergency medical services in 2018<br />
can be attributed to the inclusion of Stratford EMS services,<br />
which was not included in previous years.<br />
Page 22 A <strong>Clean</strong> <strong>Environment</strong>
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