| environ. | nitrogen oxides Oxides formed and released in all common types of combustion; they are formed by the oxidation of atmospheric nitrogen at high temperatures. Introduced into the atmosphere from car exhausts, furnace stacks, incinerators, power stations and similar sources, the oxides include nitrous oxide, nitric oxide, nitrogen dioxide, nitrogen pentoxide and nitric acid. The oxides of nitrogen undergo many reactions in the atmosphere to form photochemical smog | 氮氧化物 (在所有常见类型的燃烧中形成和释放的氧化物，它们是由大气中的氮在高温氧化中形成的。将来自汽车废气、火炉、焚化炉、发电厂及类似来源的排放物引入大气，包括一氧化二氮、一氧化氮、二氧化氮、五氧化二氮和硝酸的氧化物。氮的氧化物经过大气中的许多反应，形成光化学烟雾。) |
