Metro Vancouver, Fraser Valley under air quality advisory due to pollution

B.C. afternoon weather forecast: July 30
WATCH: B.C. afternoon weather forecast for July 30

Eastern Metro Vancouver and the Fraser Valley were placed under an air quality advisory Thursday afternoon.

Read more: British Columbians can now sign up to get air quality alerts via text

The Metro Vancouver Regional District issued the advisory citing high levels of ground-level ozone.

Ground-level ozone is created when pollutants from burning fuel react with organic compounds produced by solvents in sunlight.

It is most commonly seen in the mid-afternoon and early evening during summer.

Read more: Lower Mainland tries to keep cool amid first heat of COVID-19 pandemic

It can be particularly harmful to infants, the elderly and people with underlying health conditions.

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Metro Vancouver says the conditions are expected to persist until Friday.

Honey bees can help monitor pollution in cities
Honey bees can help monitor pollution in cities