苏州地区酸雨变化特征及趋势分析

Variation Characteristics and Trend Analysis of Acid Rain in Suzhou

利用2006-2015年期间降水监测数据,分析了苏州地区降水随时间和季节的变化特征及趋势,并且对致酸原因进行了探讨。结果表明,2006-2015年期间苏州地区酸雨污染程度在较高水平,冬春两季较夏季的酸化程度明显上升,频率也相对较高;工业二氧化硫、汽车尾气的排放是致酸的主要原因,化工、有色金属冶炼产生的工业废气对酸雨的形成也起到了一定的作用。

Using the precipitation monitoring data during 2006-2015,analyzed the precipitation over time and seasonal variation characteristics and trends in Suzhou,discussed the reason to cause acid. The results showed that the pollution of acid rain in Suzhou during 2006-2015 at a higher level,the degree of acidification in winter and spring was more than in summer,and the frequency was relatively high;Industrial emissions of sulphur dioxide,automobile exhaust were the main reasons for acid. In addition,produced by the chemical industry,non-ferrous metal smelting industry waste gas has also played a role on the formation of acid rain.