Ground-Level Ozone Advisory Cancelled

August 4, 2017

While the Air Quality Advisory for Metro Vancouver and Fraser Valley continues because of high concentrations of fine particulate matter in the region, the ground-level ozone advisory has been cancelled due to cooler weather.

Air quality continues to be affected by the current weather pattern over the BC Coast, which has caused outflow winds to transport smoke from wildfires burning in the BC Interior into our region. Smoke concentrations may vary widely across the region as winds and temperatures change, and as wildfire behaviour changes.

Fine particulate matter, also known as PM 2.5, 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 their 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.

This advisory is expected to continue until there is a change in the current weather.

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

Information about real-time air quality readings for Metro Vancouver and the Fraser Valley communities and potential health impacts can be found at www.airmap.ca and www2.gov.bc.ca/gov/content/environment/air-land-water/air.

For more information, contact Sarah Lusk, Senior Media Relations Strategist, Media Relations 604-451-6697 (office), 604-318-5073 (cell).