Isotopic comparison of ammonium between two summertime field campaigns in 2013 and 2021 at a background site of North China

doi:10.1016/j.scitotenv.2023.167304

	Isotopic comparison of ammonium between two summertime field campaigns in 2013 and 2021 at a background site of North China
	Zong, Zheng 1,2,3; Ren, Chuanhua 4; Shi, Xiaolan 5; Sun, Zeyu 2,3; Huang, Xin 4; Tian, Chongguo2,3,9 ; Li, Jun 6,7; Zhang, Gan 6,7; Fang, Yunting 8; Gao, Huiwang 5
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
	2023-12-20
卷号	905 页码:7
关键词	Ammonia Non-agricultural sources delta N-15 Ammonium North China
DOI	10.1016/j.scitotenv.2023.167304
通讯作者	Tian, Chongguo([email protected])
英文摘要	Ammonia (NH3) is the primary atmospheric alkaline gas, playing a crucial role in the atmospheric chemistry. Recently, non-agricultural emissions have been identified as the dominant sources of NH3 in urban areas. However, few studies have quantified the contributions of different sources to regional NH3. This study conducted two summertime field observations in 2013 and 2021 at a background site of North China to comprehensively explore the regional variations in concentration, nitrogen isotope composition (delta N-15), and sources of ammonium (NH4+). The results indicate that NHx (NHx = NH3 + NH4+) concentration has increased in 2021, but the f(NH4+) (NH4+/ NHx) has decreased significantly. The delta N-15-NH4+ values show a significant increase, ranging from -4.7 +/- 8.1 parts per thousand to +12.0 +/- 2.4 parts per thousand. The increase can be attributed to two primary factors: changes in f(NH4+) resulting from the reduction of atmospheric acid gases and alterations in the sources of NH3. Bayesian simulation analysis reveals substantial variations in NH3 sources between 2013 and 2021 observations. Non-agricultural sources have significantly increased their contribution to NHx concentration, with vehicle exhaust and NH3 slip experiencing growth rates of 187 % and 104 %, respectively. Our results confirm the dominate contribution of non-agricultural sources to regional NH3 at the present stage and propose relevant mitigation strategies, which would provide essential insights for reducing NH3 emissions in North China.
收录类别	SCI
语种	英语
关键词[WOS]	NITROGEN DEPOSITION ; NH3 EMISSIONS ; SOURCE APPORTIONMENT
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:001159400700001
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/133337/36339
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.Shandong Univ, Environm Res Inst, Qingdao 266237, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Beijing 264003, Shandong, Peoples R China 3.YICCAS, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China 4.Nanjing Univ, Sch Atmospher Sci, Nanjing 210023, Peoples R China 5.Ocean Univ China, Key Lab Marine Environm & Ecol, Minist Educ, Qingdao 266100, Shandong, 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 Uti, Guangzhou 510640, Peoples R China 8.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang 110164, Liaoning, Peoples R China 9.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zong, Zheng,Ren, Chuanhua,Shi, Xiaolan,et al. Isotopic comparison of ammonium between two summertime field campaigns in 2013 and 2021 at a background site of North China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,905:7.
APA	Zong, Zheng.,Ren, Chuanhua.,Shi, Xiaolan.,Sun, Zeyu.,Huang, Xin.,...&Gao, Huiwang.(2023).Isotopic comparison of ammonium between two summertime field campaigns in 2013 and 2021 at a background site of North China.SCIENCE OF THE TOTAL ENVIRONMENT,905,7.
MLA	Zong, Zheng,et al."Isotopic comparison of ammonium between two summertime field campaigns in 2013 and 2021 at a background site of North China".SCIENCE OF THE TOTAL ENVIRONMENT 905(2023):7.