杭州市临安区酸雨污染近况分析  

Analysis on the Current Situation of Acid Rain Pollution in Lin′an District of Hangzhou City

作　　者：许鑫红 杨冰雪 施思 汪琼华 何欢 XU Xin-hong;YANG Bing-xue;SHI Si(Hangzhou Lin′an District Environmental Monitoring Station, Lin′an,Zhejiang 311300)

机构地区：[1]浙江省杭州市临安区环境监测站,浙江杭州311300

出　　处：《安徽农业科学》2019年第9期86-89,92,共5页Journal of Anhui Agricultural Sciences

基　　金：杭州市农业与社会发展科研项目库入库项目(171663)

摘　　要：根据杭州市临安区近17年(2001—2017年)的降水监测数据,对临安区酸性降水的变化特征、离子化学组成、变化趋势和酸雨成因进行了分析。结果表明:近17年降水pH年均值总体呈现上升趋势,表明酸雨形势有所改善;降水中的水溶性阴离子以SO_4^(2-)和NO_3^-为主,水溶性阳离子以NH_4^+和H^+为主,酸雨污染特征由硫酸型向硫酸-硝酸复合型转变;应用统计学相关方法分析得出降水主要离子来自于人为活动源、地壳源及海洋源。根据分析结果有针对性地提出治理酸雨污染的措施,如加强酸性废气行业整治、减少污染物排放总量、推进生态修复工程、优化城市空间和产业布局、做好大气污染防治区域联防联控工作等。Based on the observation of acid rain in Lin′an area of Hangzhou in recent 17 years (2001~2017),the change characteristics,chemical components,variation trend and origin of acid rain in Linan area were analyzed:The results showed that the pH annual average of precipitation in recent 17 years generally presents an upward trend,indicating that acid rain has improved;the main water-soluble anions in precipitation are SO 4 2- and NO 3 -,the main water-soluble cation is NH 4 + and H +,and the characteristics of acid rain pollution change from sulfuric acid type to sulfuric acid-nitric acid compound type:Statistical correlation analysis shows that the main ions of precipitation come from the crustal and oceanic sources:According to the analysis results and put forward measures to control acid rain pollution,such as: strengthen the acid gas industry regulation,reduce the pollutant emissions,promote ecological restoration project,optimize the urban space and the industry layout,do a good job of prevention and control of atmospheric pollution from spreading zone and so on.

关 键 词：酸雨监测 成因分析 防治建议 

分 类 号：X517[环境科学与工程—环境工程]