The Bay Area Air Quality Management District has issued a Spare the Air alert for Saturday because of excessive levels of smog expected in the region.
Triple-digit temperatures and vehicle exhaust are forecasted to make the air quality unhealthy in the Bay Area. It is the fifth alert the air district has issued for smog, otherwise known as ozone, this year.
On Spare the Air days, the air district encourages people to find alternatives to driving alone to limit the number of cars on the road, and says people should only do outdoor exercise in the early morning hours when smog concentrations are lower.
People can find out when a Spare the Air Alert is in effect by visiting sparetheair.org, calling 800-HELP-AIR (4357-247), downloading the Spare the Air smartphone app for iPhone or Android devices or connecting with Spare the Air on Facebook, Twitter or YouTube.