VOC characteristics, sources and contributions to SOA formation during haze events in Wuhan, Central China

被引：211

作者：

Hui, Lirong ^{[1
]}

Liu, Xingang ^{[1
]}

Tan, Qinwen ^{[2
]}

Feng, Miao ^{[2
]}

An, Junling ^{[3
]}

Qu, Yu ^{[3
]}

Zhang, Yuanhang ^{[4
]}

Cheng, Nianliang ^{[5
]}

机构：

[1] Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China

[2] Chengdu Acad Environm Sci, Chengdu 610072, Sichuan, Peoples R China

[3] Chinese Acad Sci, State Key Lab Atmospher Boundary Layer Phys & Atm, Inst Atmospher Phys, Beijing 100029, Peoples R China

[4] Peking Univ, State Key Joint Lab Environm Simulat & Pollut Con, Coll Environm Sci & Engn, Beijing 100871, Peoples R China

[5] Beijing Municipal Environm Monitoring Ctr, Beijing 100048, Peoples R China

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2019年 / 650卷

基金：

中国国家自然科学基金;

关键词：

VOCs; SOA formation potential; PSCF; Source apportionment; Haze; VOLATILE ORGANIC-COMPOUNDS; PEARL RIVER-DELTA; POSITIVE MATRIX FACTORIZATION; PHOTOCHEMICAL OZONE FORMATION; CITY METROPOLITAN-AREA; MILAGRO; 2006; CAMPAIGN; SOURCE APPORTIONMENT; MEXICO-CITY; FORMATION MECHANISM; SOURCE ATTRIBUTION;

D O I：

10.1016/j.scitotenv.2018.10.029

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Based on detailed data on 102 volatile organic compounds (VOCs) measured continuously from 2016.10.9 to 2016.11.17 in Wuhan, the VOC characteristics, secondary organic aerosol (SOA) characteristics, SOA formation potential (SOAP), potential source regions, sources and contributions during different haze episodes were analyzed. The total VOC (TVOC) concentrations on clear days (visibility > 10 km), slight haze days (visibility of 5-10 km), and severe haze days (visibility < 5 km) were 34.87 +/- 14.89 ppbv, 45.06 +/- 26.69 ppbv, and 49.55 +/- 24.82 ppbv, respectively. The SOAP on haze days (447.04 +/- 253.85 ppbv) was significantly higher than that on clear days (300.62 +/- 138.48 ppbv), and aromatics were the dominant contributors to SOA formation under different visibility conditions, accounting for approximately 97% of the total SOAP. The ratio of ethylbenzene to m/p-xylene (E/X) indicated that atmospheric photochemical reactions were slightly stronger on haze days. The ratio of toluene to benzene (T/B) indicated that vehicle exhaust had significant effects on VOCs, but no significant changes occurred during different haze episodes. The ratio of benzene, toluene, ethylbenzene and xylenes (BTEX) to CO indicated that VOCs from solvent usage in painting/coating and industrial emissions increased with increasing haze pollution. Based on backward trajectories and the potential source contribution function (PSCF), short-distance transport was the main source influencing VOC pollution, especially transport from the southwest. Seven sources were identified by positive matrix factorization (PMF): industrial sources, vehicular exhaust, solvent usage in painting/coating, fuel evaporation, liquefied petroleum gas (LPG) usage, biogenic sources and biomass burning. Moreover, solvent usage in painting/coating, vehicle exhaust and LPG usage were the most important sources that significantly aggravated VOC pollution during haze events. The results can provide references for local governments developing control strategies of VOCs during haze pollution events. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：2624 / 2639

页数：16

共 78 条

[1]

[Anonymous], ATMOS CHEM PHYS DISC

[2]

[Anonymous], ATMOS CHEM PHYS DISC

[3] Chemical evolution of volatile organic compounds in the outflow of the Mexico City Metropolitan area [J].

Apel, E. C. ;

Emmons, L. K. ;

Karl, T. ;

Flocke, F. ;

Hills, A. J. ;

Madronich, S. ;

Lee-Taylor, J. ;

Fried, A. ;

Weibring, P. ;

Walega, J. ;

Richter, D. ;

Tie, X. ;

Mauldin, L. ;

Campos, T. ;

Weinheimer, A. ;

Knapp, D. ;

Sive, B. ;

Kleinman, L. ;

Springston, S. ;

Zaveri, R. ;

Ortega, J. ;

Voss, P. ;

Blake, D. ;

Baker, A. ;

Warneke, C. ;

Welsh-Bon, D. ;

de Gouw, J. ;

Zheng, J. ;

Zhang, R. ;

Rudolph, J. ;

Junkermann, W. ;

Riemer, D. D. .

ATMOSPHERIC CHEMISTRY AND PHYSICS, 2010, 10 (05) :2353-2375

[4] A RESIDENCE TIME PROBABILITY ANALYSIS OF SULFUR CONCENTRATIONS AT GRAND-CANYON-NATIONAL-PARK [J].

ASHBAUGH, LL ;

MALM, WC ;

SADEH, WZ .

ATMOSPHERIC ENVIRONMENT, 1985, 19 (08) :1263-1270

[5] GAS-PHASE TROPOSPHERIC CHEMISTRY OF ORGANIC-COMPOUNDS - A REVIEW [J].

ATKINSON, R .

ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS, 1990, 24 (01) :1-41

[6] Modeling SOA formation from the oxidation of intermediate volatility n-alkanes [J].

Aumont, B. ;

Valorso, R. ;

Mouchel-Vallon, C. ;

Camredon, M. ;

Lee-Taylor, J. ;

Madronich, S. .

ATMOSPHERIC CHEMISTRY AND PHYSICS, 2012, 12 (16) :7577-7589

[7] Volatile organic compounds in 43 Chinese cities [J].

Barletta, B ;

Meinardi, S ;

Rowland, FS ;

Chan, CY ;

Wang, XM ;

Zou, SC ;

Chan, LY ;

Blake, DR .

ATMOSPHERIC ENVIRONMENT, 2005, 39 (32) :5979-5990

[8] Ambient mixing ratios of nonmethane hydrocarbons (NMHCs) in two major urban centers of the Pearl River Delta (PRD) region: Guangzhou and Dongguan [J].

Barletta, Barbara ;

Meinardi, Simone ;

Simpson, Isobel J. ;

Zou, Shichun ;

Rowland, F. Sherwood ;

Blake, Donald R. .

ATMOSPHERIC ENVIRONMENT, 2008, 42 (18) :4393-4408

[9] Measurements of volatile organic compounds at a suburban ground site (T1) in Mexico City during the MILAGRO 2006 campaign: measurement comparison, emission ratios, and source attribution [J].

Bon, D. M. ;

Ulbrich, I. M. ;

de Gouw, J. A. ;

Warneke, C. ;

Kuster, W. C. ;

Alexander, M. L. ;

Baker, A. ;

Beyersdorf, A. J. ;

Blake, D. ;

Fall, R. ;

Jimenez, J. L. ;

Herndon, S. C. ;

Huey, L. G. ;

Knighton, W. B. ;

Ortega, J. ;

Springston, S. ;

Vargas, O. .

ATMOSPHERIC CHEMISTRY AND PHYSICS, 2011, 11 (06) :2399-2421

[10] Source apportionment of VOCs in the Los Angeles area using positive matrix factorization [J].

Brown, Steven G. ;

Frankel, Anna ;

Hafner, Hilary R. .

ATMOSPHERIC ENVIRONMENT, 2007, 41 (02) :227-237

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