While heat baked the Central Valley, fires from the coast and in Northern California continued to make healthy breathing a questionable affair.
According to the San Joaquin Valley Air Pollution Control District, the air in San Joaquin County was "unhealthy" Tuesday and will likely be so again today.
Fires burning in Big Sur and Butte County are major contributors to the hazy skies over Tracy and Mountain House, as firefighters continue the battle against blazes sparked by a dry lightning storm weeks ago.
Those who have asthma or other conditions that make them sensitive to dirty air are advised to curtail outdoor activities until conditions improve.

