摘要
2015年2月,采用扫描电迁移率粒径谱仪(SMPS)和空气动力学粒径谱仪(APS)对济南市冬季大气中粒径为14. 6 nm～10μm的颗粒物粒径谱的分布进行连续监测和分析研究。结果表明:济南市冬季大气颗粒物数浓度较高,平均为47472个/cm^3。各模态对颗粒物数浓度、表面积浓度和体积浓度的贡献表明,济南市冬季大气颗粒物偏细,积聚模态粒子是可吸入颗粒物(PM_(10))的主要组成部分。数浓度谱日变化特征表明,济南市冬季大气颗粒物污染主要受道路交通源排放和新粒子生成转化的影响。春节期间,烟花爆竹的燃放会导致大气颗粒物数浓度和质量浓度明显升高,烟花爆竹燃放对颗粒物数浓度的影响主要由爱根核模态和积聚模态共同作用形成。
Continuous measurement and analysis of the atmospheric particles( 14. 6 nm ~ 10 μm) were performed in Jinan in February of 2015 by using the scanning electromobility particle size spectrometer( SMPS) and aerodynamic particle size spectrometer( APS).The result showed that the number concentration of atmospheric particles in Jinan was high in winter with the average of 47472/cm3. The contributions of different mode to number,surface and volume concentration showed that atmospheric particles were very fine and the accumulation mode particles were the major components of inhalable particles( PM10). The diurnal variations of number concentration showed that atmospheric particle pollution of Jinan in winter was mainly influenced by the union effect of the emission of road traffic and the formation and transformation of new particles. The setting off of fireworks and firecrackers obviously increased the number and mass concentration of atmospheric particles,which was formed through the common action of Aitken mode and accumulation mode.
作者
夏志勇
吕波
李海滨
付华轩
王治非
石梓含
XIA Zhi-yong;LV Bo;LI Hai-bin;FU Hua-xuan;WANG Zhi-fei;SHI Zi-han(Jinan Environmental Monitoring Center, Jinan 250014 , China;Jinan Licheng No.2 High School, Jinan 250014 , China)
出处
《环境工程》
CAS
CSCD
北大核心
2019年第3期109-112,123,共5页
Environmental Engineering
基金
山东省重点研发计划项目(2015GGH301002)
山东省省级环保产业技术研发项目(SDHBYF-2012-01)
关键词
粒径谱分布
大气颗粒物
日变化
烟花爆竹燃放
size distribution
atmospheric particles
diurnal variations
setting off of fireworks and firecrackers
