San Francisco and Oakland at sunset.

Getty Images

Spare The Air Alert In Effect

August 13, 2019 - 7:29 am

The eighth "spare the air' day alert of the year has been issued for Tuesday because of unhealthy levels of smog in the Bay Area. 

The arrival of a high pressure system that's brought high temperatures to the region and stymied ocean breezes is causing an unhealthy amount of ozone, or smog, to build up, according to the Bay Area Air Quality Management District. 

The conditions will be most acute in inland parts of Alameda and Contra Costa counties and Solano County. 

Officials ask commuters to carpool or take public transportation to avoid contributing to the problem. 

"We ask people to reduce their driving. That is the number one cause of air pollution in the summer time," said an official with the management district. 

People are encouraged to exercise outdoors in the morning when pollution levels are lowers. 

The pollution can be harmful to the elderly, children and people with respiratory or heart conditions.