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Characteristics of Black Carbon Aerosol during the Chinese Lunar Year and Weekdays in Xi'an, China
Wang, Qiyuan1; Liu, Suixin1; Zhou, Yaqing1; Cao, Junji1,2; Han, Yongming1; Ni, Haiyan1; Zhang, Ningning1; Huang, Rujin1,3,4
2015-02-01
Source PublicationATMOSPHERE
ISSN2073-4433
Volume6Issue:2Pages:195-208
SubtypeArticle
Abstract

Black carbon (BC) aerosol plays an important role in climate forcing. The net radiative effect is strongly dependent on the physical properties of BC particles. A single particle soot photometer and a carbon monoxide analyser were deployed during the Chinese Lunar Year (CLY) and on weekdays at Xi'an, China, to investigate the characteristics of refractory black carbon aerosol (rBC). The rBC mass on weekdays (8.4 mu g center dot m(-3)) exceeds that during the CLY (1.9 mu g center dot m(-3)), presumably due to the lower anthropogenic emissions during the latter. The mass size distribution of rBC shows a primary mode peak at ~205 nm and a small secondary mode peak at ~102-nm volume-equivalent diameter assuming 2 g center dot cm(-3) in void-free density in both sets of samples. More than half of the rBC cores are thickly coated during the CLY (f(BC) = 57.5%); the percentage is slightly lower (f(BC) = 48.3%) on weekdays. Diurnal patterns in rBC mass and mixing state differ for the two sampling periods, which are attributed to the distinct anthropogenic activities. The rBC mass and CO mixing ratios are strongly correlated with slopes of 0.0070 and 0.0016 mu g center dot m(-3)center dot ppbv(-1) for weekdays and the CLY, respectively.

WOS HeadingsScience & Technology ; Physical Sciences
DOI10.3390/atmos6020195
WOS KeywordLaser-induced Incandescence ; Particle Soot Photometer ; Mixing State ; Tibetan Plateau ; Western ; Trends ; Area ; City
Indexed BySCI
Language英语
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000350691700003
PublisherMDPI AG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9396
Collection粉尘与环境研究室
Corresponding AuthorCao, Junji
Affiliation1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
2.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China
3.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland
4.Natl Univ Ireland Galway, Ryan Inst, Ctr Climate & Air Pollut Studies, Galway, Ireland
Recommended Citation
GB/T 7714
Wang, Qiyuan,Liu, Suixin,Zhou, Yaqing,et al. Characteristics of Black Carbon Aerosol during the Chinese Lunar Year and Weekdays in Xi'an, China[J]. ATMOSPHERE,2015,6(2):195-208.
APA Wang, Qiyuan.,Liu, Suixin.,Zhou, Yaqing.,Cao, Junji.,Han, Yongming.,...&Huang, Rujin.(2015).Characteristics of Black Carbon Aerosol during the Chinese Lunar Year and Weekdays in Xi'an, China.ATMOSPHERE,6(2),195-208.
MLA Wang, Qiyuan,et al."Characteristics of Black Carbon Aerosol during the Chinese Lunar Year and Weekdays in Xi'an, China".ATMOSPHERE 6.2(2015):195-208.
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