【摘要】 长沙市酸雨出现较早,近年来逐渐加重。2004年酸雨频率已达90%以上,pH年均值在4.0以下。文章以2000~2005年上半年的长沙市降水统计数据为基础,分析了酸雨的变化趋势,为长沙市酸雨的有效控制提供了可靠依据。更多还原

【Abstract】 The acid rain in Changsha city appeared in the early time,and it gets heavier in recently year.In 2004,the acid rain frequency had reached 90% above.The annual average of pH is below 4.0.This report is based on the relevant statistical data from 2000～2005,and this report analyzes the changing trend of acid rain,it provides some reliable information for the control of acid in Changsha city.更多还原