Characterization of fine particle emissions from burning church candles

被引:95
作者
Fine, PM
Cass, GR [1 ]
Simoneit, BRT
机构
[1] CALTECH, Dept Environm Engn Sci, Pasadena, CA 91125 USA
[2] Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA
关键词
D O I
10.1021/es981039v
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A series of source tests were conducted on the combustion of paraffin and beeswax candles. An enclosed chamber sampling system was utilized, and fine particle samples were collected on both quartz fiber and Teflon filters. Electronic particle sizing was performed using an optical particle counter and a differential mobility analyzer. Filter samples were weighed to determine fine particle mass emission rates and then analyzed for elemental carbon and organic carbon by thermal evolution and combustion analysis and for organic chemical composition by GC/MS. Three modes of candle burning were observed with very different emission profiles: a "normal burning" mode characterized by low mass emission rates and particles smaller than 100 nm in diameter; a "sooting" behavior with high emission rates of predominantly elemental carbon particles; and a "smoldering" phase upon candle extinction during which most of the mass emissions occurred as white particles having diameters between 400 and 800 nm. The majority of emissions were organic compounds including alkanes, alkenes, alkanoic acids, wax esters, cyclohexylalkanes, and alkanals. Analysis of the unburned waxes revealed that while some of these compounds were thermally altered products of the unburned wax, many others were unaltered candle components emitted by direct volatilization. Thus, possible chemical tracers for candle burning may be easily identified by analyzing unburned wax material. The information provided in this study, in conjunction with future ambient indoor air sampling programs and receptor-oriented chemical mass balance techniques, can be used to determine the relative importance of candle burning to indoor soiling problems.
引用
收藏
页码:2352 / 2362
页数:11
相关论文
共 38 条
[1]   COLOR ANALYSIS OF THE BRANCACCI CHAPEL FRESCOES .2. [J].
BACCI, M ;
BALDINI, F ;
CARLA, R ;
LINARI, R ;
PICOLLO, M ;
RADICATI, B .
APPLIED SPECTROSCOPY, 1993, 47 (04) :399-402
[2]  
BENNETT H, 1944, COMMERCIAL WAXES NAT
[3]   Elemental carbon-based method for monitoring occupational exposures to particulate diesel exhaust [J].
Birch, ME ;
Cary, RA .
AEROSOL SCIENCE AND TECHNOLOGY, 1996, 25 (03) :221-241
[4]  
BROOKS BT, 1954, CHEM PETROLEUM HYDRO, V1, pCH3
[5]   DEPOSITION OF ATMOSPHERIC PARTICLES WITHIN THE BUDDHIST CAVE TEMPLES AT YUNGANG, CHINA [J].
CHRISTOFOROU, CS ;
SALMON, LG ;
CASS, GR .
ATMOSPHERIC ENVIRONMENT, 1994, 28 (12) :2081-2091
[6]  
COLALUCCI G, 1986, SISTENE CHAPEL ART H, P260
[7]   Microanalysis of museum aerosols to elucidate the soiling of paintings: Case of the Correr Museum, Venice, Italy [J].
DeBock, LA ;
VanGrieken, RE ;
Camuffo, D ;
Grime, GW .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1996, 30 (11) :3341-3350
[8]  
DOWNING DT, 1960, STUD WAXES, V18, P253
[9]   Fourier-transform Raman spectroscopic study of natural waxes and resins .1. [J].
Edwards, HGM ;
Farwell, DW ;
Daffner, L .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1996, 52 (12) :1639-1648
[10]  
FARADAY M, 1910, SCI PAPERS PHYSICS C, V30, P86