Home > Research > Publications & Outputs > Intermediate‐Volatility Organic Compounds Obser...

Research

Links

Text available via DOI:

Keywords

View graph of relations

Intermediate‐Volatility Organic Compounds Observed in a Coastal Megacity: Importance of Non‐Road Source Emissions

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Published

Standard

Intermediate‐Volatility Organic Compounds Observed in a Coastal Megacity: Importance of Non‐Road Source Emissions. / Fang, Hua; Huang, Xiaoqing; Xiao, Shaoxuan et al.
In: Journal of Geophysical Research: Atmospheres, Vol. 127, No. 19, e2022JD037301, 16.10.2022.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Fang, H, Huang, X, Xiao, S, Lowther, S, Fu, X, Zhang, Y, Wu, T, Hu, W, Zhang, G, Ding, X, Tang, M, Bi, X, Jones, KC & Wang, X 2022, 'Intermediate‐Volatility Organic Compounds Observed in a Coastal Megacity: Importance of Non‐Road Source Emissions', Journal of Geophysical Research: Atmospheres, vol. 127, no. 19, e2022JD037301. https://doi.org/10.1029/2022jd037301

APA

Fang, H., Huang, X., Xiao, S., Lowther, S., Fu, X., Zhang, Y., Wu, T., Hu, W., Zhang, G., Ding, X., Tang, M., Bi, X., Jones, K. C., & Wang, X. (2022). Intermediate‐Volatility Organic Compounds Observed in a Coastal Megacity: Importance of Non‐Road Source Emissions. Journal of Geophysical Research: Atmospheres, 127(19), Article e2022JD037301. https://doi.org/10.1029/2022jd037301

Vancouver

Fang H, Huang X, Xiao S, Lowther S, Fu X, Zhang Y et al. Intermediate‐Volatility Organic Compounds Observed in a Coastal Megacity: Importance of Non‐Road Source Emissions. Journal of Geophysical Research: Atmospheres. 2022 Oct 16;127(19):e2022JD037301. Epub 2022 Oct 5. doi: 10.1029/2022jd037301

Author

Fang, Hua ; Huang, Xiaoqing ; Xiao, Shaoxuan et al. / Intermediate‐Volatility Organic Compounds Observed in a Coastal Megacity : Importance of Non‐Road Source Emissions. In: Journal of Geophysical Research: Atmospheres. 2022 ; Vol. 127, No. 19.

Bibtex

@article{b672d46b8ba4473b9d01d66fec3676ff,
title = "Intermediate‐Volatility Organic Compounds Observed in a Coastal Megacity: Importance of Non‐Road Source Emissions",
abstract = "Intermediate‐volatility organic compounds (IVOCs) are among the most important precursors to secondary organic aerosol (SOA), yet their sources and contributions to SOA in ambient air are poorly constrained. In this study, IVOCs were collected with sorption tubes in a coastal city in southern China during September–October 2019 and were analyzed by gas chromatography‐mass selective detector after thermo‐desorption. The measured average concentration of IVOCs was 25.0 ± 0.95 μg m−3 (mean ± 95% C.I.), and residual unresolved complex mixtures shared 79.8% ± 1.91% of IVOCs. The estimated SOA production, even only from speciated IVOCs and unspeciated branch‐alkane IVOCs, reached 2.44 ± 1.46 μg m−3, approximately five times that from VOCs during the photochemically active period (12:00–15:00 local time). Based on the positive matrix factorization model with a photochemical‐age‐based parameterization, diesel‐related emission was the largest contributor (46.6%) of IVOCs, followed by ship emission (23.0%), gasoline exhaust (16.8%), and biomass/coal burning (13.6%). Non‐road diesel engines accounted for a dominant part in diesel‐related emission. Ship emission was found to contribute SOA formation potentials (SOAFPs) comparable to that of diesel‐related emission, while biomass/coal burning showed higher SOAFPs than gasoline exhaust. Our results revealed that non‐road sources, such as ship emission, non‐road diesel engines, and biomass/coal burning contributed substantially to IVOCs, and will be of greater importance in producing ambient SOA with the increasingly stringent control on emissions from on‐road vehicles.",
keywords = "Composition and Chemistry, ATMOSPHERIC COMPOSITION AND STRUCTURE, Constituent sources and sinks, Pollution: urban and regional, Troposphere: composition and chemistry, Aerosols and particles, BIOGEOSCIENCES, Pollution: urban, regional and global, Urban systems, OCEANOGRAPHY: GENERAL, Marine pollution, NATURAL HAZARDS, Megacities and urban environment, OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL, Aerosols, PALEOCEANOGRAPHY, Research Article, intermediate‐volatility organic compounds, secondary organic aerosol, source apportionment, fossil fuel combustion, non‐road emissions",
author = "Hua Fang and Xiaoqing Huang and Shaoxuan Xiao and Scott Lowther and Xuewei Fu and Yanli Zhang and Ting Wu and Weiwei Hu and Guohua Zhang and Xiang Ding and Mingjin Tang and Xinhui Bi and Jones, {Kevin C.} and Xinming Wang",
year = "2022",
month = oct,
day = "16",
doi = "10.1029/2022jd037301",
language = "English",
volume = "127",
journal = "Journal of Geophysical Research: Atmospheres",
issn = "0747-7309",
publisher = "Wiley-Blackwell Publishing Ltd",
number = "19",

}

RIS

TY - JOUR

T1 - Intermediate‐Volatility Organic Compounds Observed in a Coastal Megacity

T2 - Importance of Non‐Road Source Emissions

AU - Fang, Hua

AU - Huang, Xiaoqing

AU - Xiao, Shaoxuan

AU - Lowther, Scott

AU - Fu, Xuewei

AU - Zhang, Yanli

AU - Wu, Ting

AU - Hu, Weiwei

AU - Zhang, Guohua

AU - Ding, Xiang

AU - Tang, Mingjin

AU - Bi, Xinhui

AU - Jones, Kevin C.

AU - Wang, Xinming

PY - 2022/10/16

Y1 - 2022/10/16

N2 - Intermediate‐volatility organic compounds (IVOCs) are among the most important precursors to secondary organic aerosol (SOA), yet their sources and contributions to SOA in ambient air are poorly constrained. In this study, IVOCs were collected with sorption tubes in a coastal city in southern China during September–October 2019 and were analyzed by gas chromatography‐mass selective detector after thermo‐desorption. The measured average concentration of IVOCs was 25.0 ± 0.95 μg m−3 (mean ± 95% C.I.), and residual unresolved complex mixtures shared 79.8% ± 1.91% of IVOCs. The estimated SOA production, even only from speciated IVOCs and unspeciated branch‐alkane IVOCs, reached 2.44 ± 1.46 μg m−3, approximately five times that from VOCs during the photochemically active period (12:00–15:00 local time). Based on the positive matrix factorization model with a photochemical‐age‐based parameterization, diesel‐related emission was the largest contributor (46.6%) of IVOCs, followed by ship emission (23.0%), gasoline exhaust (16.8%), and biomass/coal burning (13.6%). Non‐road diesel engines accounted for a dominant part in diesel‐related emission. Ship emission was found to contribute SOA formation potentials (SOAFPs) comparable to that of diesel‐related emission, while biomass/coal burning showed higher SOAFPs than gasoline exhaust. Our results revealed that non‐road sources, such as ship emission, non‐road diesel engines, and biomass/coal burning contributed substantially to IVOCs, and will be of greater importance in producing ambient SOA with the increasingly stringent control on emissions from on‐road vehicles.

AB - Intermediate‐volatility organic compounds (IVOCs) are among the most important precursors to secondary organic aerosol (SOA), yet their sources and contributions to SOA in ambient air are poorly constrained. In this study, IVOCs were collected with sorption tubes in a coastal city in southern China during September–October 2019 and were analyzed by gas chromatography‐mass selective detector after thermo‐desorption. The measured average concentration of IVOCs was 25.0 ± 0.95 μg m−3 (mean ± 95% C.I.), and residual unresolved complex mixtures shared 79.8% ± 1.91% of IVOCs. The estimated SOA production, even only from speciated IVOCs and unspeciated branch‐alkane IVOCs, reached 2.44 ± 1.46 μg m−3, approximately five times that from VOCs during the photochemically active period (12:00–15:00 local time). Based on the positive matrix factorization model with a photochemical‐age‐based parameterization, diesel‐related emission was the largest contributor (46.6%) of IVOCs, followed by ship emission (23.0%), gasoline exhaust (16.8%), and biomass/coal burning (13.6%). Non‐road diesel engines accounted for a dominant part in diesel‐related emission. Ship emission was found to contribute SOA formation potentials (SOAFPs) comparable to that of diesel‐related emission, while biomass/coal burning showed higher SOAFPs than gasoline exhaust. Our results revealed that non‐road sources, such as ship emission, non‐road diesel engines, and biomass/coal burning contributed substantially to IVOCs, and will be of greater importance in producing ambient SOA with the increasingly stringent control on emissions from on‐road vehicles.

KW - Composition and Chemistry

KW - ATMOSPHERIC COMPOSITION AND STRUCTURE

KW - Constituent sources and sinks

KW - Pollution: urban and regional

KW - Troposphere: composition and chemistry

KW - Aerosols and particles

KW - BIOGEOSCIENCES

KW - Pollution: urban, regional and global

KW - Urban systems

KW - OCEANOGRAPHY: GENERAL

KW - Marine pollution

KW - NATURAL HAZARDS

KW - Megacities and urban environment

KW - OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL

KW - Aerosols

KW - PALEOCEANOGRAPHY

KW - Research Article

KW - intermediate‐volatility organic compounds

KW - secondary organic aerosol

KW - source apportionment

KW - fossil fuel combustion

KW - non‐road emissions

U2 - 10.1029/2022jd037301

DO - 10.1029/2022jd037301

M3 - Journal article

VL - 127

JO - Journal of Geophysical Research: Atmospheres

JF - Journal of Geophysical Research: Atmospheres

SN - 0747-7309

IS - 19

M1 - e2022JD037301

ER -