A "Spare the Air" alert has been issued for the Bay Area on Sunday, Aug. 18, due to higher temperatures and unhealthy pollution levels, air quality officials said.
An unhealthy amount of ozone pollution is expected in the region because of a combination of hot weather, low winds and vehicle exhaust, according the Bay Area Air Quality Management District.
High temperatures are expected to reach the upper 90s in inland areas, according to the National Weather Service.
Anyone who plans to exercise outdoors is advised to do so in the early morning hours when ozone concentrations are lower, district officials said.
Ozone levels were expected to drop to healthier levels on Monday.