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@ARTICLE{Cho:902386,
author = {Cho, Changmin and Clair, Jason M. St. and Liao, Jin and
Wolfe, Glenn M. and Jeong, Seokhan and Kang, Dae il and
Choi, Jinsoo and Shin, Myung-Hwan and Park, Jinsoo and Park,
Jeong-Hoo and Fried, Alan and Weinheimer, Andrew and Blake,
Donald R. and Diskin, Glenn S. and Ullmann, Kirk and Hall,
Samuel R. and Brune, William H. and Hanisco, Thomas F. and
Min, Kyung-Eun},
title = {{E}volution of formaldehyde ({HCHO}) in a plume originating
from a petrochemical industry and its volatile organic
compounds ({VOC}s) emission rate estimation},
journal = {Elementa},
volume = {9},
number = {1},
issn = {2325-1026},
address = {Washington, DC},
publisher = {BioOne},
reportid = {FZJ-2021-04220},
pages = {00015},
year = {2021},
abstract = {Large industrial facilities, such as petrochemical
complexes, have decisive effects on regional air quality:
directly due to their own hazardous volatile organic
compounds (VOCs) emissions and indirectly due to their
contribution to secondary air pollution. In South Korea,
pronounced ozone and particulate matter issues have been
reported in industrial areas. In this study, we develop a
new top-down VOC emission rate estimation method using in
situ airborne formaldehyde (HCHO) observations in the
downwind plume of the Daesan Petrochemical Complex (DPC) in
South Korea during the 2016 Korea–United States Air
Quality (KORUS-AQ) mission. On May 22, we observed a peak
HCHO mole fraction of 12 ppb after a transport time of 2.5 h
(distance approximately 36 km) under conditions where the
HCHO photochemical lifetime was 1.8 h. Box model
calculations indicate that this elevated HCHO is mainly due
to secondary production (more than $90\%$ after 2 h of plume
aging) from various VOC precursors including ethene,
propene, and 1,3-butadiene. We estimate a lower limit for
yearly DPC VOC emissions of 31 (±8.7) × 103 MT/year for
HCHO precursors and 53 (±15) × 103 MT/year for all
measured primary VOCs. These estimates are 1.5–2.5 times
higher than the latest Korean emission inventories, KORUSv5.
This method is beneficial not only by tracking the sources,
sinks, and evolution of HCHO but also by validating existing
emission inventories.},
cin = {IEK-8},
ddc = {550},
cid = {I:(DE-Juel1)IEK-8-20101013},
pnm = {2111 - Air Quality (POF4-211)},
pid = {G:(DE-HGF)POF4-2111},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000683372300001},
doi = {10.1525/elementa.2021.00015},
url = {https://juser.fz-juelich.de/record/902386},
}