Wildfires burning in British Columbia and Washington state have triggered an air quality advisory for metro Vancouver
The smoke is contributing to high concentrations of fine particulate matter in the area, which pose the greatest risk to health, according to the US Environmental Protection Agency. Local Canadian officials have urged residents to “postpone or reduce outdoor physical activity while PM 2.5 concentrations are high, especially if breathing feels uncomfortable.” Fine particulate matter, also known as PM 2.5, refers to airborne solid or liquid droplets with a diameter of 2.
“Smoke concentrations may vary widely across the region as winds and temperatures change, and as wildfire behaviour changes,” the Metro Vancouver press release said. There are currently nine active wildfires in Washington, according to a Friday update from Northwest Interagency Coordination Center. This includes the Cedar Creek Fire, which is 40% contained. It has burned 122,794 acres since it began on August 1, according to the Incident Information System.
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