What it measures
Ground-level ozone is a colourless, odourless gas that is a key component of smog. Ground-level ozone is formed with gasses created when fossil fuels used in our cars, power plants, and other industrial activities meet in sunlight. Data for this indicator are collected by Environment and Climate Change Canada and reported in parts per billion.
Why this matters
Ground-level ozone is important to consider when thinking about wellbeing because it has a negative impact on air quality. Poor air quality can lead to a number of health problems especially respiratory disease.
Indicator data table
|Year||Ground-level ozone (in parts per billion)|
Environment and Climate Change Canada, Environmental Indicators
Ontario Ministry of Environment and Climate Change, Ground-level ozone