Behavior and prediction of photochemical degradation of chlorinated polycyclic aromatic hydrocarbons in cyclohexane
作者:Takeshi Ohura、Takashi Amagai、Masakazu Makino
DOI:10.1016/j.chemosphere.2007.08.064
日期:2008.2
The photochemical degradation of 11 chlorinated polycyclic aromatic hydrocarbons (ClPAHs) and the corresponding 5 parent PAHs was examined to simulate the compound's fate on aerosol surfaces. All the ClPAHs and PAHs decayed according to the first-order reaction rate kinetics. The photolysis rates of ClPAHs varied greatly according to the skeleton of PAHs; the rates of chlorophenanthrenes (ClPhes) and
检查了11种氯化多环芳烃(ClPAHs)和相应的5种母体PAHs的光化学降解,以模拟化合物在气溶胶表面上的命运。所有的ClPAH和PAH均根据一级反应速率动力学而衰减。ClPAHs的光解速率随PAHs的骨架而变化很大。与相应的母体PAH相比,氯菲(ClPhes)和1-氯py的比率高于相应的母体PAH的比率,而氯氟蒽,7-氯苯并[a]蒽和6-氯苯并[a] py在辐射下更稳定。考虑到检测到的ClPhes的光产物,氧化可能会立即在最高前沿电子密度的位置发生。最后,