当前位置: 首页 > 文章 > 西安市2006~2015年大气污染物变化特征及与气象条件的关系 江西农业学报 2017 (9) 109-115
Position: Home > Articles > Change Characteristics of Concentration of Air Pollutants and Its Relationship with Meteorological Conditions in Xi'an from 2006 to 2015 Acta Agriculturae Jiangxi 2017 (9) 109-115

西安市2006~2015年大气污染物变化特征及与气象条件的关系

作  者:
曹梅;王斌;仇娜;张颖梅
单  位:
陕西省气象局;陕西省西安市气象局
关键词:
西安;大气污染物;气象条件;关系
摘  要:
采用西安市环境监测站2006~2015年大气主要污染物(SO2、NO2、PM10)的日均浓度观测资料,分析了3种大气主要污染物不同时间尺度的变化规律;同时结合西安地面气象观测资料、高空逆温强度,研究了西安市大气主要污染物(SO2、NO2、PM10)质量浓度与气象条件的关系。结果表明:2006~2015年西安市SO2年平均质量浓度呈缓慢下降趋势,NO2和PM10年平均质量浓度呈逐年缓慢上升的趋势。大气主要污染物质量浓度的季节变化一致,都是夏季低,冬季高。风速和气温与大气主要污染物浓度之间存在着明显的负相关关系,逆温强度和大气主要污染物之间存在正相关关系,降水对大气污染物有明显的清除作用。
译  名:
Change Characteristics of Concentration of Air Pollutants and Its Relationship with Meteorological Conditions in Xi'an from 2006 to 2015
作  者:
CAO Mei;WANG Bin;QIU Na;ZHANG Ying-mei;Xi'an Meteorological Bureau of Shaanxi Province;Shaanxi Meteorological Bureau;
关键词:
Xi'an;;Air pollutant;;Meteorological condition;;Relationship
摘  要:
Using the observational data of daily average mass concentration of main air pollutants(SO2,NO2 and PM10)during 2006 ~ 2015 provided by Xi'an Environmental Monitoring Station,the author analyzed the change rule of concentration of these air pollutants in different time scales. According to the observational data of surface meteorological factors and upper inversion intensity in Xi'an,we studied the relationships between mass concentration of SO2,NO2 and PM10and meteorological condition in Xi'an. From 2006 to 2015 in Xi'an,the annual average mass concentrations of SO2 showed a slow downward trend; while that of NO2 and PM10revealed a slow rising trend. The seasonal variations in mass concentration of 3 kinds of air pollutants in Xi'an all appeared as summer< autumn(spring) < winter. The mass concentration of SO2,NO2 and PM10was obviously negatively correlated with wind speed and air temperature,and was positively correlated with inversion intensity. Precipitation could eliminate or weaken these main air pollutants.

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