Air quality officials have issued the first Spare the Air alert of the year for ozone in the Bay Area for Friday, when triple-digit inland temperatures are expected to combine with motor vehicle exhaust to create high levels of the harmful pollutant.

The Bay Area Air District issued the alert because air quality is forecast to be unhealthy in the region due to ozone, also known as smog.

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Dan McMenamin is the managing editor at Bay City News, directing daily news coverage of the 12-county greater Bay Area. He has worked for BCN since 2008 and has been managing editor since 2014 after previously serving as BCN’s San Francisco bureau reporter. A UC Davis graduate, he came to BCN after working for a newspaper and nonprofit in the Davis area. He handles staffing, including coaching of our interns, day-to-day coverage decisions and management of the newswire.