ZHANG Xiao1, 2, 3 ， TANG Jie2 ， WU Yunfei3 ， WU Jian1 ， YAN Peng2 ， ZHANG Renjian3
（1. School of Resource Environment and Earth Science， Yunnan University， Kunming 650091， China； 2. Meteorological Oberservation Center， China Meteorological Administration， Beijing 100081，China； 3. Institute of Atmospheric Physics， Chinese Academy of Sciences， Beijing 100029， China）
Abstract： The variation characteristics of black carbon（BC） aerosol concentrations in Beijing and surrounding area were presented based on long-term observation at three sites of Shangdianzi, Guanxiangtai in Beijing City and Gucheng in Hebei Province during 2006—2012. The results show that the BC concentrations appear an increasing trend from north to south, with the mean values of mass concentration of（2.2±2.4）,（6.5±7.3）and（9.6±8.4）μg/m3 in Shangdianzi, Guanxiangtai and Gucheng respectively. The annual average concentrations of BC show a slight decrease in Shangdianzi, while decrease obviously in Guanxiangtai. The BC concentrations in Gucheng vary few with years and keep on the high level. The seasonal average concentrations of BC are lower in summer and spring in this region. Higher BC concentrations in winter and autumn are likely attributed to the increasing of coal combusion for heating in winter and biomass burning in autumn as well as the relatively worse diffusion conditions. The daily variations of BC concentrations in the three stations are similar, with higher values at night and low in the afternoon.
Keywords: black carbon; Beijing and surrounding area; mass concentration
文章编号：1008-5548（2015）04-0024-07
DOI：10.13732/j.issn.1008-5548.2015.04.006
收稿日期：2014-12-18，修回日期：2015-01-09，在线出版时间：2015-08-26。
基金项目：国家自然科学基金项目，编号：41175131；环保公益性行业科研专项，编号：201409027。
第一作者简介：张骁（1990—），女，硕士研究生，研究方向为大气物理学与大气环境。 E-mail:635908459@qq.com。
通信作者简介：
武云飞（1985—），男，博士，助理研究员，研究方向为气溶胶物理化学。 E-mail:wuyf@mail.iap.ac.cn。
汤洁（1958—），男，博士，研究员，研究方向为大气物理学与大气环境。E-mail:tangj@cams.cma.gov.cn。
