Air quality advisory extended for metro Vancouver due to U.S. wildfire smoke – BC

Metro Vancouver as of late Thursday night is continuing the fine particulate matter advisory due to wildfire smoke from outside the region, but cancelling the ground-level ozone advisory.

The regional district says air quality is good Friday morning, but wildfire smoke from fires in Washington and Oregon may intermittently impact the region throughout today and tomorrow.

Smoke concentrations may vary across the region, as winds and temperatures change and wildfire behaviour changes.

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

People with chronic underlying medical conditions or acute infections such as COVID-19 are advised postpone or reduce outdoor physical activity until the advisory is lifted, especially if breathing feels uncomfortable.

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Exposure to PM2.5 is particularly concerning for people with underlying conditions such as lung disease, heart disease, chronic obstructive pulmonary disease (COPD), asthma and/or diabetes, individuals with respiratory infections such as COVID-19, pregnant women and infants, children, and older adults. Individuals who are socially marginalized may also be at elevated risk.

As we are still experiencing warm temperatures, it’s also important to stay cool and hydrated. Indoor spaces with HEPA air cleaner filtration and air conditioning may offer relief from both heat and air pollution, but physical distancing guidelines for COVID-19 should still be observed.

For more information on current air quality, visit

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