摘要
利用2014年2月1日—2015年1月31日福州市区6个国控空气质量监测站点CO、SO_2、NO_2、O_3、PM_(2.5)、PM_(10)逐时监测数据,综合分析了福州市区大气污染物污染水平及其时空分布特征。结果表明:福州市区首要污染物为PM_(10),且SO_2、CO污染程度极低,6个站点质量浓度超标率均未超过10%,其中鼓山站的空气质量最优,达到国家一级标准的概率超过了50%。在污染物质量浓度日变化曲线中发现,只有O_3呈单峰形态,峰值出现在14:00左右,通过对污染物的"周末效应"分析,发现CO、PM_(2.5)工作日质量浓度显著高于周末。
Comprehensive analyses of pollution level of air pollutants and characteristics of spatial and temporal distribution were proposed based on the hourly monitoring data of CO,SO2,NO2,O3,PM（2.5）and PM（10） conducted at six air quality monitoring stations in Fuzhou,from February 1,2014 to January 31,2015. Analysis results showed that the primary pollutant was PM（10） in Fuzhou,pollution degree of SO2,CO was very low and the frequencies of hours with concentrations were not exceed 10% in six stations. Gushan station showed the best air quality,the reaching ratio was more than 50% of the national standard. In the pollutant concentration curve of diurnal variation,only O3 was single peak shape and peak was at about14： 00. Finally,it was found that the mass concentrations of CO,PM（2.5）at weekday were higher than on weekend.
出处
《环境工程》
CAS
CSCD
北大核心
2017年第2期89-93,173,共6页
Environmental Engineering
基金
国家自然科学基金项目(41401052)
福建省科技重点项目(2013h0023)
关键词
大气污染物
时空分布
污染水平
福州市
atmospheric pollutants
temporal and spatial distribution
pollution level
Fuzhou
