摘要
空气质量指数是一种评价大气环境质量状况简单而直观的指标,可用于大气环境质量评价以及污染控制和管理。利用呼和浩特市城区PM2.5监测点数据和气象数据,以空气质量指数法为依据,采用主成分分析法对影响呼和浩特市城区空气质量的主要因素进行分析,并利用方差分析法分析了气象因素对空气质量的影响。结果表明:影响呼和浩特市城区空气质量的主要因素是PM10、CO和SO2;天气寒冷、空气相对干燥、风大以及季节变化对该市空气质量会产生显著性的影响。
Air quality index is a kind of evaluation index for atmospheric environment quality condition. It is simple and intuitive, and can be used for atmospheric environment quality assessment and pollution control and management. Using the PM2.5 monitoring data and meteorological data of urban area of Hohhot City, and based on the air quality index method,this paper applies the principal component analysis （PCA） to an- alyzing the influencing factors on air quality,and uses the variance analysis method to analyze the influence of meteorological factor on air quality. The results show that the main affecting factors on air quality in Hohhot urban area are PM10 ,CO and SO2 ,and cool weather, relatively dry air, strong wind and seasonal changes may have significant influence on air quality.
出处
《安全与环境工程》
CAS
2016年第1期75-79,共5页
Safety and Environmental Engineering
基金
内蒙古自然科学基金项目(2013MS0924
2014MS0623)
内蒙古气象局科技创新项目(nmqxkjcx201504)
关键词
空气质量指数
气象因素
主成分分析(PCA)
多重比较
大气环境质量评价
呼和浩特市
air quality index
meteorological factor
principal component analysis （PCA）
multiple compari-son methods
atrnospheric environment quality assessment
Hohhot City
