Light absorption properties of brown carbon over the southeastern Tibetan Plateau

被引：61

作者：

Zhu, Chong-Shu ^{[1
]}

Cao, Jun-Ji ^{[1
]}

Huang, Ru-Jin ^{[1
]}

Shen, Zhen-Xing ^{[2
]}

Wang, Qi-Yuan ^{[1
]}

Zhang, Ning-Ning ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China

[2] Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2018年 / 625卷

基金：

中国国家自然科学基金;

关键词：

Brown carbon; Light absorption coefficient; Mass absorption cross section; Tibetan Plateau; SOLUBLE ORGANIC-CARBON; BLACK CARBON; SEASONAL-VARIATIONS; INLAND CHINA; AEROSOL; URBAN; WATER; EXTRACTS; DUST; CHEMISTRY;

D O I：

10.1016/j.scitotenv.2017.12.183

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We present a study of the light-absorbing properties of water-soluble brown carbon (WS-BrC) and methanolsoluble brown carbon (MeS-BrC) at a remote site (Lulang, 3326 m above sea level) in the southeastern Tibetan Plateau during the period 2015-2016. The light absorption coefficients at 365 nm (b(abs365)) of WS-BrC and MeS-BrC were the highest during winter and the lowest during monsoon season. MeS-BrC absorbs about 1.5 times higher at 365 nm compared to WS-BrC. The absorption at 550 nm appears lower compared to that of 365 nm for WS-BrC and MeS-BrC, respectively. Higher average value of the absorption Angstrom exponent (AAE, 365-550 nm) was obtained for MeS-BrC (8.2) than that for WS-BrC (6.9). The values of the mass absorption cross section at 365 nm (MAC(365)) indicated that BrC in winter absorbs UV-visible light more efficiently than in monsoon. The results confirm the importance of BrC in contributing to light-absorbing aerosols in this region. The understanding of the light absorption properties of BrC is of great importance, especially in modeling studies for the climate effects and transport of BrC in the Tibetan Plateau. (c) 2017 Elsevier B.V. All rights reserved.

引用

页码：246 / 251

页数：6

共 44 条

[1] Brown carbon spheres in East Asian outflow and their optical properties [J].

Alexander, Duncan T. L. ;

Crozier, Peter A. ;

Anderson, James R. .

SCIENCE, 2008, 321 (5890) :833-836

[2] Black carbon or brown carbon?: The nature of light-absorbing carbonaceous aerosols [J].

Andreae, M. O. ;

Gelencser, A. .

ATMOSPHERIC CHEMISTRY AND PHYSICS, 2006, 6 :3131-3148

[3]

[Anonymous], ENV RES LETT

[4] Source-diagnostic dual-isotope composition and optical properties of water-soluble organic carbon and elemental carbon in the South Asian outflow intercepted over the Indian Ocean [J].

Bosch, Carme ;

Andersson, August ;

Kirillova, Elena N. ;

Budhavant, Krishnakant ;

Tiwari, Suresh ;

Praveen, P. S. ;

Russell, Lynn M. ;

Beres, Nicholas D. ;

Ramanathan, Veerabhadran ;

Gustafsson, Orjan .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2014, 119 (20) :11743-11759

[5] Characteristics of carbonaceous aerosol in Pearl River Delta Region, China during 2001 winter period [J].

Cao, JJ ;

Lee, SC ;

Ho, KF ;

Zhang, XY ;

Zou, SC ;

Fung, K ;

Chow, JC ;

Watson, JG .

ATMOSPHERIC ENVIRONMENT, 2003, 37 (11) :1451-1460

[6] Concentrations, seasonal variations, and transport of carbonaceous aerosols at a remote Mountainous region in western China [J].

Cao, Jun-Ji ;

Xu, Bai-Qing ;

He, Jian-Qiao ;

Liu, Xian-Qin ;

Han, Yong-Ming ;

Wang, Ge-hui ;

Zhu, Chong-shu .

ATMOSPHERIC ENVIRONMENT, 2009, 43 (29) :4444-4452

[7] Measuring and modeling black carbon (BC) contamination in the SE Tibetan Plateau [J].

Cao, Junji ;

Tie, Xuexi ;

Xu, Baiqing ;

Zhao, Zhuzi ;

Zhu, Chongshu ;

Li, Guohui ;

Liu, Suixin .

JOURNAL OF ATMOSPHERIC CHEMISTRY, 2010, 67 (01) :45-60

[8] Light absorption by organic carbon from wood combustion [J].

Chen, Y. ;

Bond, T. C. .

ATMOSPHERIC CHEMISTRY AND PHYSICS, 2010, 10 (04) :1773-1787

[9] Size-resolved airborne particulate oxalic and related secondary organic aerosol species in the urban atmosphere of Chengdu, China [J].

Cheng, Chunlei ;

Wang, Gehui ;

Meng, Jingjing ;

Wang, Qiyuan ;

Cao, Junji ;

Li, Jianjun ;

Wang, Jiayuan .

ATMOSPHERIC RESEARCH, 2015, 161 :134-142

[10] Mass absorption efficiency of elemental carbon and water-soluble organic carbon in Beijing, China [J].

Cheng, Y. ;

He, K-B ;

Zheng, M. ;

Duan, F-K ;

Du, Z-Y ;

Ma, Y-L ;

Tan, J-H ;

Yang, F-M ;

Liu, J-M ;

Zhang, X-L ;

Weber, R. J. ;

Bergin, M. H. ;

Russell, A. G. .

ATMOSPHERIC CHEMISTRY AND PHYSICS, 2011, 11 (22) :11497-11510

← 1 2 3 4 5 →