Air Quality Advisory Issued
July 28, 2018
Due to high concentrations of ground-level ozone, an air quality advisory has been issued for the Fraser Valley. These conditions tare expected to persist for a few days.
This advisory is for ground-level ozone, however there is a noticeable haze in the region which is due to a layer of wildfire smoke over the South Coast from distant wildfires burning in Eurasia and Alaska, as well as a bog fire in Richmond. Wildfire smoke concentrations are not causing particulate matter air quality objectives to be exceeded.
Ground-level ozone is not emitted directly into the air. It is formed when nitrogen oxides (pollutants emitted when fuels are burned) and volatile organic compounds (emitted from solvents) react in the air in the presence of sunlight. The highest levels of ground-level ozone are generally observed between mid-afternoon and early evening on summer days.
Avoid strenuous outdoor activities during mid-afternoon to early evening, when ozone levels are highest. Exposure is particularly a concern for infants, the elderly and those who have underlying medical conditions such as lung or heart disease and asthma. 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.
The FVRD works in cooperation with Metro Vancouver, Environment and Climate Change Canada, and B.C. Ministry of Environment and Climate Change Strategy to look after air quality.
Information about real-time air quality readings can be found at www.airmap.ca and http://www.env.gov.bc.ca/epd/bcairquality/readings/find-stations-map.html.