摘要
采用安德森8级撞击采样器对黄石市大气颗粒物进行分级采集,分析了不同粒径范围颗粒物质量浓度和粒径分布特征,探讨了其气象影响情况。结果表明,颗粒物质量浓度随粒径减小显著增加,呈单一的变化趋势,较高浓度(53.70μg/m^3)主要集中在细粒径段0~1.1μm,且不同粒径范围颗粒物质量浓度均表现为春冬季高、夏秋季低,并明显受降雨量和相对湿度影响。除秋季外,春季、夏季和冬季较细粒径范围(0~0.4, 0.4~0.7, 0.7~1.1, 1.1~2.1μm)各相邻粒径段颗粒物浓度相关性良好;粗粒径特别是9.0~10.0μm粒径段,在秋冬季与部分粒径段颗粒物的质量浓度显著相关;在春夏季与其他粒径范围颗粒物的质量浓度无明显相关性。总体上,黄石市大气颗粒物具有显著细粒径特征。
Samples were collected by Anderson classification impingement sampler in Huangshi urban area. The mass concentrations of atmospheric particles in different size changes were analyzed in order to study the size distribution characteristics of atmospheric particles and the influence of meteorological conditions. The results showed that the mass concentration of particulate matter increased significantly with the decrease of the particle size, showing a single trend. The higher concentration was mainly concentrated in the fine particle size range of 0~1.1 μm(53.70 μg/m^3),and the mass concentration of particles in different particle size ranges was high in spring and winter, low in summer and autumn, and was obviously affected by rainfall and relative humidity. Except autumn, significant relation were gained between the fine size including 0~0.4,0.4~0.7, 0.7~1.1 and 1.1~2.1 μm in spring, summer and winter. As for the coarse size, especially the size of 9.0~10.0 μm, there was significant relation with partial sizes in autumn and winter, while no obvious relation with other sizes were obtained in spring and summer. In general, atmospheric particulate matter in Huangshi city had the significant fine size characteristics.
作者
严梦娟
刘红霞
张家泉
占长林
郑敬茹
姚瑞珍
刘婷
YAN Mengjuan;LIU Hongxia;ZHANG Jiaquan;ZHAN Changlin;ZHENG Jingru;YAO Ruizhen;LIU Ting(School of Environmental Science and Engineering,Hubei Polytechnic University,Huangshi Hubei 435003;Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation,Hubei Polytechnic University,Huangshi Hubei 435003)
出处
《湖北理工学院学报》
2019年第6期15-22,共8页
Journal of Hubei Polytechnic University
基金
矿区环境污染控制与修复湖北省重点实验室开放课题基金项目(项目编号:2016103)
关键词
大气颗粒物
粒径分布
降雨量
相对湿度
黄石市
atmospheric particles
particulate size distribution
rainfall
relative humidity
Huangshi
