Impact of an accidental explosion in Tianjin Port on enhanced atmospheric nitrogen deposition over the Bohai Sea inferred from aerosol nitrate dual isotopes

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Impact of an accidental explosion in Tianjin Port on enhanced atmospheric nitrogen deposition over the Bohai Sea inferred from aerosol nitrate dual isotopes
	Zong Zheng 1; Sun Zeyu 1,2; Tan Yang 1; Tian Chongguo 1; Qu Lin 3; Ji Ling 3
刊名	大气和海洋科学快报
	2020
卷号	13 期号:3 页码:195-201
关键词	硝酸盐氮氧同位素爆炸渤海
ISSN号	1674-2834
其他题名	利用气溶胶硝酸盐双同位素评估天津港爆炸事故对渤海地区大气氮沉降的影响
文献子类	Article
英文摘要	In recent years, emergent pollutant's accidents have occurred frequently in China, causing serious harm to the ecological environment. In this study, the impact of an accidental fire and explosion at Tianjin Port in 2015 on the atmosphere over the Bohai Sea was explored. Results showed sharp increases in the concentrations of several important components of fine particulate matter (e.g. NO_3 -, SO_4~(2-), NH_4~+, organic carbon, elemental carbon) over Beihuangcheng Island after the explosion. Among them, NO_3 - was most affected (about 10 days), with a maximum concentration of 16.45 mug m~(-3). The delta~(15)N-NO_3 - ranged from -1.58 to +8.74, with an average of +2.79 3.32. Influenced by the explosion, delta~(15)N-NO_3 - decreased significantly, which was in accordance with the industrial processes of explosives. The delta~(18)O-NO_3 - varied between +49.40 and +69.52, and showed a marked increase (+66.62 3.92) in the explosion-affected period. Using Monte Carlo simulation, the ·OH pathway for NO_3 - formation was 51.79% 10.94% at that timemuch lower than in the regular period. The elevated dry deposition of NO_3 - caused by the explosion was 266.08 mumol N m~(-2) d~(-1) over the Bohai Seaagain, much higher than in the regular period. With the dry nitrogen deposition of NH_4~+ (42.41 mumol N m~(-2) d~(-1)), the total nitrogen deposition increased by 308.49 mumol N m~(-2) d~(-1), leading to severe ecological risk. Through the inverse computation of the dry deposition flux of NO_3 -, the affected area over the Bohai Sea was less than 1.42 * 10~4 km~2, which is about 20% of the total area.
语种	英语
CSCD记录号	CSCD:6786152
资助机构	supported by a project funded by the China Postdoctoral Science Foundation ; the National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/30345]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Chinese Academy of Sciences, Yantai.; 2.University of Chinese Academy of Sciences, Beijing.; 3.Yantai Monitoring Center of Marine Environment, State Oceanic Administration of the People's Republic of China, Yantai
推荐引用方式 GB/T 7714	Zong Zheng,Sun Zeyu,Tan Yang,et al. Impact of an accidental explosion in Tianjin Port on enhanced atmospheric nitrogen deposition over the Bohai Sea inferred from aerosol nitrate dual isotopes[J]. 大气和海洋科学快报,2020,13(3):195-201.
APA	Zong Zheng,Sun Zeyu,Tan Yang,Tian Chongguo,Qu Lin,&Ji Ling.(2020).Impact of an accidental explosion in Tianjin Port on enhanced atmospheric nitrogen deposition over the Bohai Sea inferred from aerosol nitrate dual isotopes.大气和海洋科学快报,13(3),195-201.
MLA	Zong Zheng,et al."Impact of an accidental explosion in Tianjin Port on enhanced atmospheric nitrogen deposition over the Bohai Sea inferred from aerosol nitrate dual isotopes".大气和海洋科学快报 13.3(2020):195-201.