环境空气质量评价及与气象因子的关系——以2015年呼和浩特市区为例

Ambient Air Quality Evaluation and the Relationship with Meteorological Factors:Case Study of Hohhot City in 2015

环境空气质量指数是一种评价大气环境质量状况的指标,可用于大气环境质量评价以及污染控制和管理。文章利用2015年1—12月呼和浩特市空气质量数据,对2015年环境空气质量进行评价,并与气象因子进行了相关性分析。结果表明,呼和浩特市空气质量良好,全年监测365d,有276d达到优良,优良率达到75.6%,只有1d有严重污染,首要污染物为可吸入颗粒物。Person相关分析表明,气温、相对湿度、降水量、风速和日照均为极显著影响空气质量指数的关键气象因子。

Ambient Air quality index is a kind of evaluation index of atmospheric environment quality condition,and can be used for atmospheric environment quality assessment and pollution control and management.Used Hohhot air quality index monitoring and meteorological data,environmental air quality were evaluated and correlation analyses were compared with meteorological factor in2015.The results indicated that air quality was good in Hohhot city,the monitoring for the whole year365days,276days to achieve good,good rate reached75.6%,only one day,with serious pollution,primary pollutant was PM10.Person correlation analysis showed that air temperature,relative humidity,rainfall,wind speed and sunshine were all the key meteorological factors,which significantly affected the air quality index.