Long-Term Evolution of Particulate Nitrate Pollution in North China: Isotopic Evidence From 10 Offshore Cruises in the Bohai Sea From 2014 to 2019

doi:10.1029/2022JD036567

	Long-Term Evolution of Particulate Nitrate Pollution in North China: Isotopic Evidence From 10 Offshore Cruises in the Bohai Sea From 2014 to 2019
	Zong, Zheng 1,2,3; Tian, Chongguo1,3 ; Sun, Zeyu 1,3; Tan, Yang1,3 ; Shi, Yajun1,3 ; Liu, Xiaohuan 4; Li, Jun 5,6; Fang, Yunting 7; Chen, Yingjun 8; Ma, Yuhao 9; Gao, Huiwang 4; Zhang, Gan 5,6; Wang, Tao 2
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
	2022-06-16
卷号	127 期号:11 页码:13
DOI	10.1029/2022JD036567
通讯作者	Tian, Chongguo([email protected])
英文摘要	Atmospheric nitrate (NO3-) pollution has become an obstacle to efforts to further reduce fine particulate (PM2.5) concentration in North China. However, there have been limited long-term measurements of NO3- and isotopic knowledge (delta N-15, delta O-18) on the driving factors during NO3- changes. Here, we report observations of 10 voyages from 2014 to 2019 conducted in the Bohai Sea, a typical background area in North China. The results show that the average proportion of NO3- in PM2.5 increased from 0.08 to 0.16 over the study period. The delta N-15-NO3- ranged from -4.1 parts per thousand to +20.5 parts per thousand, with a significant annual decline (p < 0.01), especially in winter. The average delta O-18-NO3- was +72.6 +/- 13.5 parts per thousand, and a Monte Carlo calculation revealed that the contribution of the center dot OH pathway in the NO3- formation declined by 27.4% in winter, implying an increase in O-3 pollution. Coal combustion remained the most important contributor to NO3- (46.6 +/- 15.9%), but its contribution showed a significant downward trend (p < 0.01), consistent with the control of disperse coal use in North China. Enhancement of atmospheric oxidation and the unexpected large increase in contribution of microbial processes were found to be the main causes of the increasingly serious NO3- pollution in North China. In addition, a spike in the contribution of coal combustion in 2018 indicates that the coal-control policy needs to be reinforced.
资助机构	Natural Scientific Foundation of China (NSFC) ; NSFC-Shandong Joint Fund ; Hong Kong Research Grants Council
收录类别	SCI
语种	英语
关键词[WOS]	REGIONAL BACKGROUND SITE ; THEORETICAL CALCULATION ; FRACTIONATION FACTORS ; SOURCE APPORTIONMENT ; NITROGEN DEPOSITION ; REACTIVE NITROGEN ; NOX SOURCES ; EMISSIONS ; PM2.5 ; AEROSOL
研究领域[WOS]	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000810594700001
引用统计	被引频次：12[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/133337/37554
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 YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,YICCAS, Yantai, Peoples R China 2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Beijing, Peoples R China 4.Ocean Univ China, Key Lab Marine Environm & Ecol, Minist Educ, Qingdao, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou, Peoples R China 7.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang, Peoples R China 8.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai, Peoples R China 9.Harbin Inst Technol Harbin Inst Technol Shenzhen, Shenzhen Engn Lab Microalgal Bioenergy, Shenzhen, Peoples R China
推荐引用方式 GB/T 7714	Zong, Zheng,Tian, Chongguo,Sun, Zeyu,et al. Long-Term Evolution of Particulate Nitrate Pollution in North China: Isotopic Evidence From 10 Offshore Cruises in the Bohai Sea From 2014 to 2019[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2022,127(11):13.
APA	Zong, Zheng.,Tian, Chongguo.,Sun, Zeyu.,Tan, Yang.,Shi, Yajun.,...&Wang, Tao.(2022).Long-Term Evolution of Particulate Nitrate Pollution in North China: Isotopic Evidence From 10 Offshore Cruises in the Bohai Sea From 2014 to 2019.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,127(11),13.
MLA	Zong, Zheng,et al."Long-Term Evolution of Particulate Nitrate Pollution in North China: Isotopic Evidence From 10 Offshore Cruises in the Bohai Sea From 2014 to 2019".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 127.11(2022):13.