In response to smoke from massive wildfires and conditions that increase ozone levels, air officials issued an alert for Monday through Wednesday for all eight counties of the San Joaquin Valley including Madera.
It is the second such alert issued by the San Joaquin Valley Air Pollution Control District this year.
Increased car emissions, scorching heat over 100 degrees and stagnant air combine to increase ozone levels, which could have negative health impacts, the warning said.
“High ozone levels also put the Valley at risk for exceeding the one-hour federal ozone standard, which can trigger an annual $29 million federal penalty,” the warning said...