Custom AirNow Maps - Map Overview

The default web address (URL) for the AirNow map is

A generic square placeholder image with rounded corners in a figure.
Fig: AirNow Map Showing the Default View

(Your map may look slightly different depending on many factors, like screen width, resolution, browser, etc.)

This default map displays:

  • The lower 48 states
  • The Ozone and PM contour overlay
  • Does not display sensors
  • Does not show the green areas of contours (making the map more visible)

Much of the map—including what tab you start at—can be changed by manipulating the URL variables. Read below for a quick explanation of how to change these variables so that you can link to a custom version of this map.