A Spare the Air alert is in effect Monday due to a high-pressure system that will cause light winds and higher temperatures, the Bay Area Air Quality Management District said.
Combined with motor vehicle exhaust, weather conditions are expected to cause elevated concentrations of smog, the air district said in a news release.
This will be the district's 19th Spare the Air alert of the year for smog and the second consecutive alert this week. Spare the Air alerts are issued when ozone pollution is forecast to reach unhealthy levels, which can cause numerous respiratory difficulties. Outdoor exercise should be done only in the early morning hours when ozone 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.