A preliminary study on measurements of black carbon in the atmosphere of northwest Qilian Shan

Black carbon （BC） concentration and meteorological data are measured discontinuously from May 2009 to March 2011,at the Qilian Shan Station of Glaciology and Ecologic Environment （hereafter ＂QSSGEE＂）,located near the terminal of the Laohugou No.12 Glacier in northwestern Qilian Shan,China.We measure...

Full description

Saved in:
Bibliographic Details
Published in:Journal of environmental sciences (China) 2012, Vol.24 (1), p.152-159
Main Authors: Zhao, Shuyu, Ming, Jing, Xiao, Cunde, Sun, Weijun, Qin, Xiang
Format: Article
Language:English
Subjects:
air
Air Pollutants - analysis
Atmosphere - analysis
autumn
black carbon
carbon
China
cloud condensation nuclei
condensation
Environmental Monitoring - methods
glaciers
meteorological data
Qilian Shan
relative humidity
seasonal variation
Soot - analysis
summer
wind direction
北祁连山
微物理特征
气氛
气象数据
浓度测量
生态环境
西北地区
黑碳
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Black carbon （BC） concentration and meteorological data are measured discontinuously from May 2009 to March 2011,at the Qilian Shan Station of Glaciology and Ecologic Environment （hereafter ＂QSSGEE＂）,located near the terminal of the Laohugou No.12 Glacier in northwestern Qilian Shan,China.We measured the daily,monthly and seasonal variations of BC concentration in the atmosphere and discussed the possible emission sources.Black carbon background concentration in this region varied in the range of 18–72 ng/m 3 with the highest in summer and the lowest in autumn.The relations between BC concentration and surface wind direction indicated that BC concentration was higher when northwest wind prevails while lower when southeast wind prevails.Air masses backward trajectories showed the potential emission sources in the northwest.Significant positive correlations between daily mean BC concentration and relative humidity indicated that BC might be one of important cloud condensation nuclei.This hypothesis needs to be confirmed further through cloud microphysical features in this region.
ISSN:1001-0742
1878-7320
DOI:10.1016/S1001-0742(11)60739-0