洛阳市酸雨形势及成因分析

根据1997~2003年降水监测数据,采用多因子对比、统计分析的方法对洛阳市酸雨的形势及成因进行分析。分析表明,酸雨的形成不但和洛阳市污染加剧有关,而且和降水量、降尘量有密切关系,降水量越大,降尘量越小,降水时越易形成酸雨。夏秋季节太阳光照多,气温高、且大气降水多、空气湿度大,利于SO2向SO42-转化,易发生酸雨,大气中酸性污染物多虽有利于酸雨形成,但若降水量偏少,也很难形成酸雨。

Characteristics of Acid Rain Formation in Luoyang and Analysis of Causes

Based on the 1997-2003 years of rain fall quantity,the analysis of the reason of Louyang acid rains formation by using the multi-factor contrast and statistics indicates that there has been great correlationships between the acid rains formation and the quantity of rain fall or the dustfall.The more it rains,or the less dust it contains,the more possible it is to have acid rain.In the summer and fall,the plentiful sunlight,high temperature,sufficient atmosphere rainfall and high humidity are conducive to transformation of sulfur dioxide(SO_2)into the sulfate ion.Although it is advantageous to the formation of acid rain if there is more acidic pollutant in the air,acid rain is hard to be formed with less rain fall quantity.