Water-soluble organic compounds in biomass burning aerosols over Amazonia -: 1.: Characterization by NMR and GC-MS -: art. no. 8047

被引:389
作者
Graham, B [1 ]
Mayol-Bracero, OL
Guyon, P
Roberts, GC
Decesari, S
Facchini, MC
Artaxo, P
Maenhaut, W
Köll, P
Andreae, MO
机构
[1] CSIRO Atmospher Res, PMBI Aspendale, Vic 3195, Australia
[2] Univ Puerto Rico, Inst Trop Ecosyst Studies, Rio Piedras, PR 00931 USA
[3] Max Planck Inst Chem, Dept Biogeochem, D-55020 Mainz, Germany
[4] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA
[5] CNR, Inst Atmospher & Ocean Sci, I-40129 Bologna, Italy
[6] Univ Sao Paulo, Inst Phys, BR-05315970 Sao Paulo, Brazil
[7] State Univ Ghent, Inst Nucl Sci, B-9000 Ghent, Belgium
[8] Univ Oldenburg, Fachbereich Chem FB9, Dept Chem, D-26111 Oldenburg, Germany
来源
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES | 2002年 / 107卷 / D20期
关键词
organic aerosols; biomass burning; GC-MS; NMR; levogluosan; Amazon;
D O I
10.1029/2001JD000336
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
[1] As part of the European contribution to the Large-Scale Atmosphere-Biosphere Experiment in Amazonia (LBA-EUSTACH), aerosols were sampled at representative pasture and primary rainforest sites in Rondonia, Brazil, during the 1999 "burning season" and dry-to-wet season transition (September-October). Water-soluble organic compounds (WSOCs) within the samples were characterized using a combination of H-1 Nuclear Magnetic Resonance (NMR) spectroscopy for chemical functional group analysis, and Gas Chromatography-Mass Spectrometry (GC-MS) for identification and quantification of individual low-molecular-weight compounds. The H-1 NMR analysis indicates that WSOCs are predominantly aliphatic or oxygenated aliphatic compounds (alcohols, carboxylic acids, etc.), with a minor content of aromatic rings carrying carboxylic and phenolic groups. Levoglucosan (1,6-anhydro-beta-D-glucose), a well-known cellulose combustion product, was the most abundant individual compound identified by GC-MS (0.04-6.90 mug m(-3)), accounting for 1-6% of the total carbon (TC) and 2-8% of the water-soluble organic carbon (WSOC). Other anhydrosugars, produced by hemicellulose breakdown, were detected in much smaller amounts, in addition to series of acids, hydroxyacids, oxoacids, and polyalcohols (altogether 2-5% of TC, 3-6% of WSOC). Most correlated well with organic carbon, black carbon, and potassium, indicating biomass burning to be the major source. A series of sugar alcohols (mannitol, arabitol, erythritol) and sugars (glucose, fructose, mannose, galactose, sucrose, trehalose) were identified as part of the natural background aerosol and are probably derived from airborne microbes and other biogenic material. The bulk of the WSOCs (86-91% WSOC) eluded analysis by GC-MS and may be predominantly high-molecular weight in nature.
引用
收藏
页码:LBA14 / 1
页数:16
相关论文
共 90 条
[1]  
Andreae M.O., 1995, World Survey of Climatology, vol. 16, V16, P341, DOI 10.1016/S0168-6321(06)80033-7
[2]   Atmospheric aerosols: Biogeochemical sources and role in atmospheric chemistry [J].
Andreae, MO ;
Crutzen, PJ .
SCIENCE, 1997, 276 (5315) :1052-1058
[3]   SOOT CARBON AND EXCESS FINE POTASSIUM - LONG-RANGE TRANSPORT OF COMBUSTION-DERIVED AEROSOLS [J].
ANDREAE, MO .
SCIENCE, 1983, 220 (4602) :1148-1151
[4]   ATMOSPHERIC MEASUREMENTS OF PYRUVIC AND FORMIC-ACID [J].
ANDREAE, MO ;
TALBOT, RW ;
LI, SM .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1987, 92 (D6) :6635-6641
[5]   BIOMASS-BURNING EMISSIONS AND ASSOCIATED HAZE LAYERS OVER AMAZONIA [J].
ANDREAE, MO ;
BROWELL, EV ;
GARSTANG, M ;
GREGORY, GL ;
HARRISS, RC ;
HILL, GF ;
JACOB, DJ ;
PEREIRA, MC ;
SACHSE, GW ;
SETZER, AW ;
DIAS, PLS ;
TALBOT, RW ;
TORRES, AL ;
WOFSY, SC .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1988, 93 (D2) :1509-1527
[6]   Transport of biomass burning smoke to the upper troposphere by deep convection in the equatorial region [J].
Andreae, MO ;
Artaxo, P ;
Fischer, H ;
Freitas, SR ;
Grégoire, JM ;
Hansel, A ;
Hoor, P ;
Kormann, R ;
Krejci, R ;
Lange, L ;
Lelieveld, J ;
Lindinger, W ;
Longo, K ;
Peters, W ;
de Reus, M ;
Scheeren, B ;
Dias, MAFS ;
Ström, J ;
van Velthoven, PFJ ;
Williams, J .
GEOPHYSICAL RESEARCH LETTERS, 2001, 28 (06) :951-954
[7]  
ANDREAE MO, 2001, GLOBAL BIOGEOCHEM CY, V15
[8]  
ANDREAE MO, 2002, IN PRESS J GEOPHYS R, V107
[9]  
ANDREAE MO, 1996, BIOMASS BURNING GLOB, P278
[10]   AEROSOL CHARACTERISTICS AND SOURCES FOR THE AMAZON BASIN DURING THE WET SEASON [J].
ARTAXO, P ;
MAENHAUT, W ;
STORMS, H ;
VANGRIEKEN, R .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1990, 95 (D10) :16971-16985