西安市环境空气质量污染变化特征与影响因素研究

Study on The Change Characteristics and Influencing Factors of Ambient Air Quality Pollution in Xi'an

选取2013~2018西安市环境监测点数据,从月、季、年三个维度对西安市环境空气污染时空变化特点进行研究。结合相关数据,对主要污染物与次要污染物分别由不同污染物占总污染程度比例,了解这些污染物对总污染贡献率计算出各个污染物污染负担系数。而后,以温度与逆温、雾霾天气、降水、气压与热岛效应及风速与风向等关键影响指标分析了西安市空气质量污染变化的影响因素,进而提出相关解决措施。

Select the data of environmental monitoring points in Xi'an from 2013 to 2018,and study the spatiotemporal change characteristics of environmental air pollution in Xi'an from three dimensions of month,season and year.Combined with relevant data,the pollution burden coefficient of each pollutant can be calculated by understanding the contribution rate of these pollutants to the total pollution by the proportion of different pollutants to the total pollution degree of main pollutants and secondary pollutants.Then,based on the key impact indicators of temperature and inversion,haze weather,precipitation,atmospheric pressure and heat island effect,wind speed and direction,the influencing factors of air quality pollution change in Xi'an are analyzed,and relevant solutions are proposed.