【摘要】 <正> 一、问题的提出 大气中的一次污染物氮氧化物及碳氢化合物在太阳光紫外线的照射下发生光解,引起一系列化学反应,形成光化学烟雾。它对人体健康及动植物生长危害极大。我国已在兰州石油化工区、上海金山石油化工区等地作过实地测量,并已测出光化学烟雾。开更多还原

【Abstract】 Three-dimensional formulations and its vertically integrated form for photochemi-cal air pollution are described. A mathematical model is developed. The stiff ODEsystem in this model is successfully calculated with a numerical method-small par-ameter method in which the Jacobian matrix is not needed. A example is given.更多还原