County officials issue air quality warnings for San Fernando, San Gabriel valleys

Public health officials have issued air quality warnings for valleys from San Fernando to San Gabriel, and cautioned residents to protect themselves against extremely high temperatures through Thursday.

Daytime highs through Thursday could hit 107 degrees in the Greater Glendale area, 105 degrees in Pasadena, according to the National Weather Service. Los Angeles County public health officials today said the blistering heat, combined with unhealthy air conditions, could spell serious trouble for the elderly, small children and pets.

They also reminded motorists that it is illegal to leave children unattended in a vehicle, and that temperatures can quickly rise to life-threatening levels, even when windows are left cracked open.