Calculate the AQI

You can calculate the most recent hour's PM2.5 AQI by using the following link.  Look at the table below, Choose the area you are interested in, Copy the PM2.5 number, then click on the AQI calculator link below, select PM2.5, and enter the number in the concentration box.

​AQI Calculator

In the future LRAPA will have a one hour AQI displayed along with the 24 hour AQI that we currently display.