摘要
利用2010—2016年济南市环境空气质量监测数据,分析了济南市PM_(2.5)的年变化、月变化、日变化和区域分布特征。结果表明:(1)跑马岭监测点(远离市区的清洁对照点)PM_(2.5)浓度呈逐年下降的趋势,其余监测点PM_(2.5)的浓度均在2013年达到峰值后逐渐下降。(2)济南市冬季污染最重,1月达到最高;夏季污染最轻,8月达到最低。(3)PM_(2.5)平均浓度有两个高值中心,不同季节PM_(2.5)高值中心有所不同。(4)夏季,有无逆温时PM_(2.5)差异较小且日变化不明显;冬季,有无逆温时PM_(2.5)差异最大。
Based on the observed data of environmental air quality from 2010 to 2016 in Jinan city,an analysis has been carried out to investigate the diurnal,monthly and annual changes and the regional distribution characteristics of PM_(2.5) concentration.The results show that:the PM_(2.5) concentration in Paomaling(a cleaning control point away from the urban area) gradually declines after reaching a peak in 2013.The heaviest pollution in Jinan is in winter,and reaches the highest in January;The most light pollution is in summer,and reaches the lowest in August.The average PM_(2.5) concentration has two peak values and the peak values vary with the seasons.In the summer,PM_(2.5) concentrations have a relatively small difference when inversion layer exists and does not exist and the diurnal variation is not obvious.In the winter,PM_(2.5) concentrations have the greatest differences when inversion layer exists and does not exist.
出处
《中国人口·资源与环境》
CSSCI
CSCD
北大核心
2017年第S2期160-162,共3页
China Population,Resources and Environment
基金
2013年山东省气象局重点课题"济南市雾霾成因分析及预报预警技术研究"(批准号:2013sdqx01)
关键词
济南市
PM2.5
时空特征
PM2.5
temporal spatial distribution characteristics
Jinan
