Aix-Marseille Université, Laboratoire Chimie Environnement, FRE 3416, Equipe Instrumentation et Réactivité Atmosphérique, Case courrier 29, 3 Place Victor Hugo, 13331, Marseille Cedex 03, France.
Environ Sci Technol. 2012 Feb 21;46(4):1955-63. doi: 10.1021/es2019675. Epub 2012 Jan 30.
This proposal involves direct photolysis processes occurring in the troposphere incorporating photochemical excitation and intermolecular energy transfer. The study of such processes could provide a better understanding of ·OH radical formation pathways in the atmosphere and in consequence, of a more accurate prediction of the oxidative capacity of the atmosphere. Compounds that readily absorb in the tropospheric actinic window (ionic organic complexes, PAHs, aromatic carbonyl compounds) acting as potential photosensitizers of atmospheric relevant processes are explored. The impact of hotosensitation on relevant systems which could act as powerful atmospheric reactors,that is, interface ocean-atmosphere, urban and forest surfaces and indoor air environments is also discussed.
本提案涉及在包含光化学激发和分子间能量转移的对流层中发生的直接光解过程。研究这些过程可以更好地了解大气中·OH 自由基的形成途径，从而更准确地预测大气的氧化能力。探索在对流层光活性窗口中容易吸收的化合物（离子有机配合物、多环芳烃、芳香羰基化合物）作为大气相关过程的潜在光敏剂。还讨论了光敏化对可能作为强大大气反应器的相关系统的影响，即海洋-大气界面、城市和森林表面以及室内空气环境。
