What is an Air Quality Action Day?
[Back to Top] An Air Quality Action Day is announced when pollution levels are forecasted to be Code Orange, Red or Purple (levels above the Federal health standard). On Air Quality Action Days, citizens are asked to take ACTION to reduce air pollution and to protect their health. From April 1 through October 31, most Air Quality Action Days will be for ozone, although a few code orange particulate days may occur during this period. From April 1 to October 31, most Air Quality Action Days will be for ozone, although a few code orange particulate days may occur during this period. From November 1 – March 31, Air Quality Action Days during this period should only be for particles.
