泰州市可吸入颗粒物浓度多时间尺度变化特征分析  

Analysis of characteristics ofmulti-time scale variation of inhalable particulate concentration in Taizhou

作　　者：吴莹[1] 朱希希[1] 王磊[1] 程滢[1] WU ying;ZHU Xi-xi;WANG Lei;CHEN Ying(Taizhou Environmental Monitoring Centre,Taizhou,Jiangsu 25300,China)

机构地区：[1]泰州市环境监测中心站,江苏泰州225300

出　　处：《污染防治技术》2018年第6期22-24,共3页Pollution Control Technology

基　　金：泰州市科技支撑计划(社会发展)项目(TS201501)

摘　　要：文中以泰州市空气质量数据及气象数据为研究对象,通过对可吸入颗粒物浓度进行统计分析,探究泰州市可吸入颗粒物年度、季节及日变化特征。结果表明,近年来,泰州市可吸入颗粒物和细颗粒物年均值呈现显著下降趋势; PM2. 5和PM10月均浓度水平整体呈冬春高夏秋低的变化趋势;日变化曲线均呈双峰状态,早晚峰值时间分别出现在上午8时和晚21时左右,中午浓度最低。Based on the air quality data and meteorological data of Taizhou city,this paper analyzes the annual,seasonal and daily variation characteristics of inhalable particulate matter in Taizhou city through statistical analysis of the concentration of inhalable particulate matter. The results showed that in recent years,the annual mean values of inhalable particulates and fine particulates in Taizhou showed a significant downward trend. The monthly mean concentrations of PM2. 5 and PM10 showed the trend of higher level in winter and spring,lower level in summer and autumn,and the diurnal variation curves showed double peaks. The peak time of morning and evening appeared at 8 am and 9 pm,respectively,and the lowest concentration was at noon.

关 键 词：空气质量 变化特征 PM10 PM25 

分 类 号：X513[环境科学与工程—环境工程]