Particulate Matter Forecasting will take place throughout the year.
Ozone season is March 1 - October 31. Ozone Forecasting season is April 1 - October 31.
NEW in Ozone Season 2016: Smog Alerts will be activated at lower pollution levels to be
more protective of public health. EPA has raised the bar by lowering the standard! ( See
Fact Sheet for more information).