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Asia - Pacific


North Shore - including West Vancouver and North Vancouver

Alerts in Effect

Special Air Quality Statement

Issued at 03:48 Tuesday 14 August 2018


Metro Vancouver has issued an Air Quality Advisory for Metro Vancouver and the Fraser Valley because of high concentrations of fine particulate matter due to wildfire smoke from fires burning throughout the Pacific Northwest.

Smoke concentrations can vary widely across the region as winds and temperatures change, and as fire behaviour changes.

On Saturday clean marine air swept through our region resulting in a clearing of the smoke from last week. As we transitioned to the next weather pattern the winds changed to a northwest flow and by late evening on Sunday smoke was measured throughout the region. Elevated levels of fine particulate matter are expected to persist until there is a change in fire and/or weather conditions.

Fine particulate matter, also known as PM2.5, refers to airborne solid or liquid droplets with a diameter of 2.5 micrometres (µm) or less. PM2.5 can easily penetrate indoors because of its small size.

Persons with chronic underlying medical conditions should postpone strenuous exercise until the advisory is lifted. Exposure is particularly a concern for infants, the elderly and those who have diabetes, and lung or heart disease. If you are experiencing symptoms such as chest discomfort, shortness of breath, coughing or wheezing, follow the advice of your healthcare provider. As we are in the summer season with warm temperatures, it is also important to stay cool and hydrated. Indoor spaces with air conditioning may offer relief from both heat and air pollution.

Metro Vancouver works in cooperation with Environment and Climate Change Canada, Fraser Valley Regional District and B.C. Ministry of Environment and Climate Change Strategy to look after air quality.


For more information on current air quality, see:

Visit for information on how to reduce your health risk and your personal contribution to pollution levels, as well as for current and forecast AQHI values.

Please continue to monitor alerts and forecasts issued by Environment Canada.

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