佛山市禅城区酸雨污染特征、成因及控制对策研究  

Study on Pollution Characteristics,Causes and Control Strategies of Acid Rain in Chancheng District of Foshan City

作　　者：关共凑 张洪华 谢捷洋 Guan Gongcou;Zhang Honghua;Xie Jieyang(Institute of Environment and Chemical Engineering, Foshan University, Foshan 528000, China)

机构地区：[1]佛山科学技术学院环境与化学工程学院,广东佛山528000

出　　处：《环境科学与管理》2020年第8期39-43,共5页Environmental Science and Management

基　　金：国家自然科学基金项目(41571091);省级大学生创新创业训练计划项目(201811847129);佛山市科学技术局项目(2018AB003561)。

摘　　要：选择佛山科学技术学院江湾校区代表佛山市禅城区的酸雨监测点,利用2016~2019年大气降水监测数据,分析酸雨污染特征。结果表明佛山市禅城区酸雨频率呈逐年下降而pH年均值呈逐年上升的趋势,酸雨污染有所缓和,春、夏季的酸雨重于秋、冬季,大气降水离子浓度大小依次为NO3^->SO4^2->NH4^+>Cl^->Ca^2+>K^+>NO2^->F^->Na^+(Mg^2+),NO3^-和SO4^2-是降水中主要阴离子,NH4^+和Ca^2+是主要阳离子,这4种离子占总离子的82.9%,SO4^2-/NO3^-从2016年的1.12下降至2019年的0.62,酸雨污染类型由过去单一的硫酸型向硫酸-硝酸混合型转变。最后在分析酸雨成因的基础上提出一些控制酸雨污染的对策。This study selected Jiangwan Campus of Foshan University to represent the acid rain monitoring site in chancheng district of foshan city.It analyzed the pollution characteristics of acid rain by monitoring data of atmospheric precipitation from 2016 to 2019.The results indicated that the frequency of acid rain in Chancheng district of Foshan city had been decreased year by year while the annual average pH value of acid rain had gradually increased so that the acid rain pollution had been slightly alleviated.Moreover,acid rain in spring and summer was more serious than that in autumn and winter.The rank of the concentration of precipitation ions were as follows:NO3^->SO4^2->NH4^+>Cl^->Ca^2+>K^+>NO2^->F^->Na^+(Mg^2+),which showed that NO3^-and SO4^2-were the major anions in precipitation as well as NH4^+and Ca^2+were the major cations,and these four ions accounted for 82.9%of the total ions.The ratio of SO4^2-and NO3^-fell from 1.12 in 2016 to 0.62 in 2019,suggesting that the acid rain pollution type had changed from the past single sulfuric acid type to sulfuric acid-nitric acid mixed type.Finally,based on the analysis results of the causes of acid rain,proposed some strategies to control acid rain pollution.

关 键 词：禅城区 PH值 酸雨 成因 对策 

分 类 号：X517[环境科学与工程—环境工程]