At 7 a.m. each day, ozone and PM2.5 animations are generated for the previous day using hourly averaged concentration measurements collected at ground monitoring stations located in Texas, Louisiana, Arkansas, and Oklahoma. The animations are provided to the user as ready to view movies (*.pps) or downloadable files (*.ppt).

DISCLAIMER: These animations are provided as a quick-look tool to visualize hourly ozone and PM2.5 measurements collected at surface monitoring stations reported to the AIRNOWTECH database. The user is cautioned that the concentrations away from the monitoring stations are obtained by interpolation and may not be representative of the concentrations that actually occurred. The generation of these animations is fully automated and a manual quality assurance check of measurements reported to AIRNOWTECH is not performed on a routine basis. In addition, subsequent quality assurance procedures may result in revised measurements that will not be reflected in these images.

If you have any comments, questions, or problems with the web interface or animations, please email Denzil Smith.  If you have technical questions about the data and calculation methodology used to generate the animations, email Gary McGaughey.