Hot weather and light winds predicted for Tuesday have prompted the Bay Area Air Quality Management District to issue a Spare the Air alert, the eighth such alert this season.

The air district issues Spare the Air alerts when ground level pollution is expected to exceed federal air quality standards, air district spokeswoman Kristine Roselius said.

The air quality is expected to be especially poor in the Santa Clara Valley, where temperatures are predicted to reach 91 for the second day in a row, Roselius said.

Air quality is expected to be moderate in other parts of the Bay Area, but air district officials are urging all people to reduce driving and take public transportation, Roselius said.

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