PPP

The objectives of the Power Plant Plume (PPP) project were: first, to demonstrate the importance or lack of importance of hydroxide (OH) oxidized Sulfur Dioxide (SO2) in power plant plumes via the direct in-situ measurement of the OH free radical, and secondly, to show that both SO2 and Nitrogen Dioxide  (NO2) can be followed in power plant plumes via laser induced fluorescence techniques to significantly greater distances than heretofore possible with conventional instrumentation thereby making possible more accurate lifetime measurements of both.