PM2.5 semivolatile organic material at Riverside, California:: Implications for the PM2.5 Federal Reference Method sampler

被引:26
作者
Pang, YB [1 ]
Eatough, NL [1 ]
Eatough, DJ [1 ]
机构
[1] Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA
关键词
D O I
10.1080/027868202753504443
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Particulate semivolatile organic compounds can be lost from particles on a filter during sample collection and storage, resulting in a negative artifact. Gas-phase organic compounds can adsorb on a quartz filter to cause a positive artifact. A sampler (Particle Concentrator-Brigham Young University Organic Sampling System: PC-BOSS) has been developed that uses a cyclone and virtual impactor (particle concentrator) inlet to provide a concentrated stream of 0.1-2.5 mum particles. The concentrator is followed by a BOSS diffusion denuder to remove interfering gas-phase compounds and filter packs to collect particles, including any semivolatile species lost from the particles during sampling. The sampler can be used for the determination of both fine particulate nitrate and semivolatile organic material without significant "positive" or "negative" sampling artifacts. The sampler has been evaluated at Riverside, CA. The collection efficiency of the particle concentrator was stable, being 65%+/-2% and 61%+/-1% for particulate sulfate and soot, respectively. Results obtained with the PC-BOSS for the determination of PM2.5 organic material including semivolatile components agreed with results from a BOSS, but not with filter pack results. The precision of the PC-BOSS results for particulate organic material was +/-8%. An average of 50% of the particulate organic material was lost from the particles during sampling for all samplers used. As a result of the loss of semivolatile organic material and nitrate, the PM2.5 Federal Reference Method sampler underdetermined PM2.5 by an average of 34% with the under measurement varying from negligible to 27 mug/m(3), averaging 8.9 mug/m(3).
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页码:277 / 288
页数:12
相关论文
共 21 条
[1]  
[Anonymous], EPA600P95001CF
[2]   PARTICLE COLLECTION EFFICIENCIES OF AIR SAMPLING CYCLONES - EMPIRICAL THEORY [J].
CHAN, T ;
LIPPMANN, M .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1977, 11 (04) :377-382
[3]   TEMPORAL AND SPATIAL VARIATIONS OF PM(2.5) AND PM(10) AEROSOL IN THE SOUTHERN CALIFORNIA AIR-QUALITY STUDY [J].
CHOW, JC ;
WATSON, JG ;
FUJITA, EM ;
LU, ZQ ;
LAWSON, DR ;
ASHBAUGH, LL .
ATMOSPHERIC ENVIRONMENT, 1994, 28 (12) :2061-2080
[4]   Fine particulate organic material in the Los Angeles basin - I: Assessment of the high-volume Brigham Young University Organic Sampling System, BIG BOSS [J].
Cui, WX ;
Eatough, DJ ;
Eatough, NL .
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 1998, 48 (11) :1024-1037
[5]   Fine particulate organic material at Meadview during the project MOHAVE summer intensive study [J].
Cui, WX ;
Machir, J ;
Lewis, L ;
Eatough, DJ ;
Eatough, NL .
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 1997, 47 (03) :357-369
[6]  
DING Y, 2001, IN PRESS AEROSOL SCI
[7]  
DING Y, 2001, UNPUB DETERMINATION
[8]   DETERMINATION OF THE SIZE DISTRIBUTION AND CHEMICAL-COMPOSITION OF FINE PARTICULATE SEMIVOLATILE ORGANIC MATERIAL IN URBAN ENVIRONMENTS USING DIFFUSION DENUDER TECHNOLOGY [J].
EATOUGH, DJ ;
TANG, H ;
CUI, W ;
MACHIR, J .
INHALATION TOXICOLOGY, 1995, 7 (05) :691-710
[9]   Determination of PM2.5 sulfate and nitrate with a PC-BOSS designed for routine sampling for semi-volatile particulate matter [J].
Eatough, DJ ;
Pang, YB ;
Eatough, NL .
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 1999, 49 :69-75
[10]   A MULTIPLE-SYSTEM, MULTICHANNEL DIFFUSION DENUDER SAMPLER FOR THE DETERMINATION OF FINE-PARTICULATE ORGANIC MATERIAL IN THE ATMOSPHERE [J].
EATOUGH, DJ ;
WADSWORTH, A ;
EATOUGH, DA ;
CRAWFORD, JW ;
HANSEN, LD ;
LEWIS, EA .
ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS, 1993, 27 (08) :1213-1219