Concentration Variation and Morphological Types of PM2.5 in Suburban of Yinchuan City

摘要：

　　PM2.5 samples were collected by Desktop Aerosol Monitor Models 8530 and recorded the meteorological conditions in study site of Yinchuan City simultaneously.The daily averages of PM2.5 mass concentration varied from 0.134 to 0.222mg m?3.The result shows that there are two apparent peaks of PM2.5 concentration in one day.Normally, PM2.5 mass concentration and temperature have some negative correlation.Their morphologies were determined by scanning electron microscopy (SEM).The particles were classified into four groups based on morphology.They were fly ash,mineral matter,irregular shaped mineral particle aggregation and other types.Fly ash and mineral matter were the two dominant types and fly ash is identified as originating from coal combustion or metallurgical plants,mineral matter from natural sources such as soil dust,resuspension of dust from roads.

关键词： PM2.5 mass concentration variation morphology type SEM

作者: CHEN Wu DONG Faqin DENG Yuequan DAI Qunwei HUANG Yunbi ZHOU shiping

作者单位: Key Laboratory of Solid Waste Treatment and the Resource Recycle, Ministry of Education,Southwest Un Key Laboratory of Solid Waste Treatment and the Resource Recycle, Ministry of Education,Southwest Un School of Materials Science and Engineering, Southwest University of Science and Technology,Mianyang Key Laboratory of Solid Waste Treatment and the Resource Recycle, Ministry of Education,Southwest Un

会议类型: 国际会议

会议名称: 中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)

会议地点: 杭州

会议语种:英文

页码: 1-6

在线出版日期: 2012-11-04（万方平台首次上网日期，不代表论文的发表时间）