济南市大气中SO_2浓度变化特征研究  

A Study on Concentration Variation of Atmospheric SO_2 in Jinan

作　　者：桑博[1,2] 孙明虎[3] 

机构地区：[1]山东省冶金设计院股份有限公司,山东济南250101 [2]山东大学环境科学与工程学院,山东济南250100 [3]济南市环境保护局,山东济南250101

出　　处：《中国环境管理干部学院学报》2017年第4期78-81,共4页Journal of Environmental Management College of China

摘　　要：为研究城区近地面SO_2浓度变化特征,于2016年在山东大学对济南城市大气中SO_2浓度进行了连续监测。结果表明,济南城区SO_2年均浓度为0.049 mg/m3。SO_2存在明显的季节变化规律,浓度最高值出现在冬季1月,最低值出现在7月。SO_2在采暖季表现出明显的双峰型日变化,在非采暖季显示出单峰型日变化,这归因于非采暖季SO_2排放量远低于采暖季。风向、风速与SO_2扩散和输送密切相关,偏东方向,风速越大,SO_2浓度越高;其他方向,风速越大SO_2清除效果越好。Continuous measurement of SO2 at one observation point in Shandong University was carried out in Jinan from January to December 2016 to study the concentration characteristics of SO2. Studies revealed that the annual mean concentration of SO2 was 0.049 mg/m3 . There was an obviously seasonal cycle of SO2, with the maximum in January and the minimum in July. SO2 exhibited a significant diurnal variation with two peaks in heating season, while the diurnal variation with one peak in non-heating season. This difference was attributed to that the emission of SO2 in heating season was significantly higher than that in non-heating season. The dispersion of SO2 had close relationship with wind directions and wind speeds. In the directions of east, the SO2 concentration went up with the increase of surface wind speed. But the wind in other directions took away SO2 more clearly, when the wind speeds were higher.

关 键 词：二氧化硫 季节变化 日变化 气象因素 

分 类 号：X511[环境科学与工程—环境工程]