This section contains selected ozone animations that show how ozone patterns change over the course of a given day - as a map of the Bay Area changes color according to the Air Quality Index scale.

O3: Ozone

Daily Ozone Pattern Animations

The animations below show daily ozone patterns overlaid on a map of the Bay Area.  The changing colors reflect the Air Quality Index readings that correspond to recorded ozone concentrations.

Bay Area Ground-Level Ozone maps

Today’s Animation

Today’s Current Hour Still Image

Yesterday’s Animation

Yesterday's peak 8-hr average

Note: Yesterday’s maps are not available until around 9am the following morning.

Utility Buttons

  • Email This Page
  • Share Share