Characterization of the nitrogen stable isotope composition (δ15N) of ship-emitted NOx

doi:10.5194/acp-23-12851-2023

	Characterization of the nitrogen stable isotope composition (δ¹⁵N) of ship-emitted NO_x
	Sun, Zeyu 1,2,9; Zong, Zheng 1,3; Tan, Yang1 ; Tian, Chongguo1,2,8 ; Liu, Zeyu 4; Zhang, Fan 5; Sun, Rong 1,2; Chen, Yingjun 4; Li, Jun 6,7; Zhang, Gan 6,7
发表期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN	1680-7316
	2023-10-13
卷号	23 期号:19 页码:12851-12865
DOI	10.5194/acp-23-12851-2023
通讯作者	Tian, Chongguo([email protected])
英文摘要	The nitrogen stable isotope composition (delta N-15) of nitrogen oxides (NOx) is a powerful indicator of source apportionment of atmospheric NOx; however, delta N-15-NOx values emitted from ships have not been reported, affecting the accuracy of source partitioning of atmospheric NOx in coastal zones with a lot of vessel activity. In addition, delta N-15-NOx values from ship emissions could also be important for source apportionment of atmospheric nitrogen deposition in remote ocean regions. This study systemically analysed the delta N-15-NOx variability and main influencing factors of ship emissions. The results showed that delta N-15-NOx values from ships, which were calculated by weighting the emission values from the main engine and auxiliary engine of the vessel, ranged from -35.8 parts per thousand to 2.04 parts per thousand with a mean +/- standard deviation of -18.5 +/- 10.9 parts per thousand. The delta N-15-NOx values increased monotonically with the ongoing tightening of emission regulations, presenting a significantly negative logarithmic relationship with NOx concentrations (p<0.01). The selective catalytic reduction (SCR) system was the most important factor affecting changes in delta N-15-NOx values, followed by the ship category, fuel types, and operation states of ships. Based on the relationship between delta N-15-NOx values and emission regulations observed in this investigation, a mass-weighted model to compute accurate assessments over time was developed, and the temporal variation in delta N-15-NOx values from ship emissions in the international merchant fleet was evaluated. These simulated delta N-15-NOx values can be used to select suitable delta N-15-NOx values for a more accurate assessment, including the contribution of ship-emitted exhaust to atmospheric NOx and its influence on atmospheric nitrate (NO air quality and nitrogen deposition studies.
资助机构	National Natural Science Foundation of China
收录类别	SCI
语种	英语
关键词[WOS]	EXHAUST EMISSIONS ; AIS DATA ; NITRATE ; FUEL ; COMBUSTION ; VEHICLE ; OXIDES ; SOIL ; VARIABILITY ; PREDICTION
研究领域[WOS]	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001162371700001
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/36319
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Tian, Chongguo
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 2.Shandong Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China 3.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong 999077, Peoples R China 4.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200438, Peoples R China 5.East China Normal Univ, Sch Geog Sci, Key Lab Geog Informat Sci, Minist Educ, Shanghai 200241, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 7.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou 510640, Peoples R China 8.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 9.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Sun, Zeyu,Zong, Zheng,Tan, Yang,et al. Characterization of the nitrogen stable isotope composition (δ¹⁵N) of ship-emitted NO_x[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2023,23(19):12851-12865.
APA	Sun, Zeyu.,Zong, Zheng.,Tan, Yang.,Tian, Chongguo.,Liu, Zeyu.,...&Zhang, Gan.(2023).Characterization of the nitrogen stable isotope composition (δ¹⁵N) of ship-emitted NO_x.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(19),12851-12865.
MLA	Sun, Zeyu,et al."Characterization of the nitrogen stable isotope composition (δ¹⁵N) of ship-emitted NO_x".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.19(2023):12851-12865.