Chemistry of Atmospheric Oxidants

摘要: All of the important oxidants in polluted air are formed there by chemical reactions which occur among primary pollutants. The most abundant these is ozone a cycle involving nitric oxide, nitrogen dioxide, atmospheric oxygen, and hydrocarbons. This best understood, not as reaction product, but an intermediate steady-state concentration between formation disappearance reactions. Hydrocarbons permit accumulation reacting to scavenge oxide would otherwise remove ozone. amount can be ambient limited about 1 ppm because scavenging become less effective when becomes very small. peroxyacyl nitrates group result from oxides organic Olefinic aromatic hydrocarbons make largest contribution PAN formation; saturates contribute little if any. role of...