Air Quality Basics
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Most of the time Metro Vancouver residents enjoy good, and steadily improving, air quality. Even so, there are still significant sources of air pollution in our region, and many factors that can influence how much can be in the air around you.
In addition to regional sources of air pollution, there could be other sources in your neighbourhood that can affect your local air quality. For example, using a wood-burning stove can increase fine particulate matter in or around your home, and
living near a busy street could increase exposure to nitrogen oxides and fine particulate matter.
The Air Aware project can help you learn how to
choose and use a small air sensor. Learning about the basics of different types of air pollution will help you better understand what your sensor is measuring and how to limit your exposure to poor air quality.
AIR POLLUTION
Air pollution can come in many different forms, depending on where you live. Different communities can have different sources of air pollution, but a few common air pollutants are found throughout the Metro Vancouver region:
Health Impacts of Air Pollution
Outdoor air pollutants commonly associated with negative health effects include particulate matter, ozone, nitrogen dioxide and sulphur dioxide. Health Canada estimates that
Outdoor air pollutants commonly associated with negative health effects include particulate matter, ozone, nitrogen dioxide and sulphur dioxide. Health Canada estimates that 14,600 premature deaths each year in Canada can be linked to fine particulate matter, nitrogen dioxide and ozone. An individual’s response to air pollution will depend on the type and amount of air pollution they are exposed to, how long they are exposed, and their pre-existing health conditions and age.
Well-studied health impacts from exposure to air pollution include:
- headache and eye, nose and throat irritation
- asthma onset and exacerbation
- respiratory infections
- lung cancer
- stroke
- heart disease
- death
Recent studies have also found that exposure to air pollution may be linked to:
- reduced lung function
- pre-term birth
- low-birth weight
- childhood obesity
- cognitive development
- mental health outcomes
- dementia
- diabetes
The populations most at risk of negative health impacts from air pollution include children, older adults, pregnant women and those with pre-existing heart and lung conditions. Some people are more exposed to air pollution than others, including people who live, work or play close to busy roads. Research suggests that there is no safe level of exposure to some air pollutants, such as fine particulate matter, and for this reason we should reduce exposure as much as we can.
The populations most at risk of negative health impacts from air pollution include children, older adults, pregnant women and those with pre-existing heart and lung conditions. Some people are more exposed to air pollution than others, including people who live, work or play close to busy roads. Research suggests that there is no safe level of exposure to some air pollutants, such as fine particulate matter, and for this reason we should reduce exposure as much as we can.
