Pollution is a serious threat to our world right now. In order to keep this world nice and clean, people have to find a way to solve this issue. As we know, The chemical output of plants, animals and human industry rise into the air and pair off in sequences of chemical reactions. The process helps to maintain the chemical balance. A University of Pennsylvania team had observed a rapid atmospheric reaction critical to breaking down pollution in the lab. The team has identified an important intermediate molecule and track its transformation to hydroxyl radicals, also demonstrating the amount of energy necessary for the reaction to take place. Their findings help explain how the atmosphere maintains its reserves of hydroxyl radicals, highly reactive molecules that are called the "atmosphere's detergent." The founding of this experiment implicates for many of the hydroxyl-radical-producing reactions that involve Criegee intermediates.

http://www.sciencedaily.com/releases/2014/09/140926141008.htm

Submitted by Changhong Wu