The Air District is issuing an air quality advisory due to wildfire smoke from Canadian wildfires in the Bay Area for Monday, June 2 and Tuesday, June 3. Smoke from various Canadian wildfires in Alberta, Saskatchewan, and Manitoba is expected to impact air quality in parts of the Bay Area on Monday and Tuesday. Conditions can change rapidly and the amount and location of smoke at ground level is hard to predict. The public can check for real-time smoke pollution levels in their local area with the U.S. EPA's Fire and Smoke Map. Smoky, hazy skies may be visible, the smell of smoke is possible and air quality may become unhealthy on Monday and Tuesday.

The Air District is closely monitoring flaring at the Chevron Refinery in Richmond and has issued an air quality advisory as localized smoke impacts are possible near and downwind of the facility, including the Contra Costa County cities of Richmond, San Pablo, Pinole, and Hercules, as well as Solano County. This is based on current meteorological conditions which can change depending on the duration of the flaring. Residents should follow instructions from local health officials.

The Air District is issuing its first Spare the Air Alert of the year for ozone for Friday, May 30. Air quality is forecast to be unhealthy. High inland temperatures, along with motor vehicle exhaust, will create elevated concentrations of ozone, or smog.