ARL News

2004 East Tennessee Ozone Study


September 19, 2004

This year, the East Tennessee Ozone Study has focused on local variability in ozone levels, and especially on changes with height. Previous studies have revealed that the diurnal cycle that characterizes the concentration regime near cities tends to be greatly reduced if not absent at mountaintop locations. It is apparent that long range transport brings ozone and ozone precursors from distant sources, and delivers them to the air well above surface monitoring stations. The extent to which local emissions controls can influence ozone concentrations is therefore open for debate.

For the 2004 study period, a website has provided direct access to air quality data collected at 12 NOAA/ATDD/RAMAN (Regional Meteorological Monitoring and Analytical Network) research sites operated under the NOAA ETOS (East Tennessee Ozone Study) Program. Data collected during the ETOS study intensive period (August 2 – 16) will be made available as soon as analyses are completed.

More information:

Contact information: Bruce B. Hicks
Phone: (301) 713-0684