气候变化领域集成服务门户(CCPortal): Chemical Interactions Between Ship-Originated Air Pollutants and Ocean-Emitted Halogens

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DOI	10.1029/2020JD034175
	Chemical Interactions Between Ship-Originated Air Pollutants and Ocean-Emitted Halogens
	Li Q.; Badia A.; Fernandez R.P.; Mahajan A.S.; López-Noreña A.I.; Zhang Y.; Wang S.; Puliafito E.; Cuevas C.A.; Saiz-Lopez A.
发表日期	2021
ISSN	2169897X
卷号	126 期号:4
英文摘要	Ocean-going ships supply products from one region to another and contribute to the world’s economy. Ship exhaust contains many air pollutants and results in significant changes in marine atmospheric composition. The role of reactive halogen species (RHS) in the troposphere has received increasing recognition and oceans are the largest contributors to their atmospheric burden. However, the impact of shipping emissions on RHS and that of RHS on ship-originated air pollutants have not been studied in detail. Here, an updated Weather Research Forecasting coupled with Chemistry model is utilized to explore the chemical interactions between ship emissions and oceanic RHS over the East Asia seas in summer. The emissions and resulting chemical transformations from shipping activities increase the level of NO and NO2 at the surface, increase O3 in the South China Sea, but decrease O3 in the East China Sea. Such changes in pollutants result in remarkable changes in the levels of RHS (>200% increase of chlorine; ∼30% and ∼5% decrease of bromine and iodine, respectively) as well as in their partitioning. The abundant RHS, in turn, reshape the loadings of air pollutants (∼20% decrease of NO and NO2; ∼15% decrease of O3) and those of the oxidants (>10% reduction of OH and HO2; ∼40% decrease of NO3) with marked patterns along the ship tracks. We, therefore, suggest that these important chemical interactions of ship-originated emissions with RHS should be considered in the environmental policy assessments of the role of shipping emissions in air quality and climate. © 2021. The Authors.
英文关键词	air pollutants; oxidation; reactive halogen species; ship emission
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185481
作者单位	Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, CSIC, Madrid, Spain; Institute of Environmental Science and Technology (ICTA), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain; Institute for Interdisciplinary Science (ICB), National Research Council (CONICET), FCEN-UNCuyo, Mendoza, Argentina; Centre for Climate Change Research, Indian Institute of Tropical Meteorology, Pune, India; Atmospheric and Environmental Studies Group (GEAA), National Technological University (UTN-FRM), CONICET, Mendoza, Argentina; Department of Environmental Science and Engineering, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Fudan University, Shanghai, China
推荐引用方式 GB/T 7714	Li Q.,Badia A.,Fernandez R.P.,et al. Chemical Interactions Between Ship-Originated Air Pollutants and Ocean-Emitted Halogens[J],2021,126(4).
APA	Li Q..,Badia A..,Fernandez R.P..,Mahajan A.S..,López-Noreña A.I..,...&Saiz-Lopez A..(2021).Chemical Interactions Between Ship-Originated Air Pollutants and Ocean-Emitted Halogens.Journal of Geophysical Research: Atmospheres,126(4).
MLA	Li Q.,et al."Chemical Interactions Between Ship-Originated Air Pollutants and Ocean-Emitted Halogens".Journal of Geophysical Research: Atmospheres 126.4(2021).