“九五”广州地区酸雨污染基本特征研究

根据“九五”期间广州地区酸雨污染状况及与"七五"期间的对比结果,通过分类统计和多元回归,研究探讨了"九五"酸雨污染的基本特征及其影响降水酸度的有关因素.研究表明,SO₄2-是降水化学组成中比重最大的离子,NO₃-对降水酸度影响较大,这两种阴离子的含量多少基本上决定了降水酸度的强弱.因此在减轻二氧化硫污染的同时,加强对氮氧化物污染控制对降低广州地区降水酸度意义重大. 

The Basic Feature Research of Acid Rain Pollution in Guangzhou Area between 1996 and 2000

Based on the acid rain pollution status in Guangzhou area between 1996 and 2000,and compared with the results between 1986 and 1990,by classification statistics and multi\|factor linear regression,the basic feature of acid rain pollution and the main factors that concerned precipitation acidity have been studied.The conclusion shows that in the precipitation chemical composition the proportion of SO 4 2- is the biggest,and the influence of NO 3 - on precipitation acidity is more important. The precipitation acidity has basically been decided by the two ions.For reducing precipitation acidity in Guangzhou area,while eliminating contamination of sulfur dioxide,controlling the contamination of nitrogen oxide is significant.