GSTDTAP  > 地球科学
DOI10.5194/acp-18-6207-2018
Sources of reactive nitrogen in marine aerosol over the Northwest Pacific Ocean in spring
Luo, Li1,3; Kao, Shuh-Ji2; Bao, Hongyan2; Xiao, Huayun1,3; Xiao, Hongwei1,3; Yao, Xiaohong4; Gao, Huiwang4; Li, Jiawei5; Lu, Yangyang2
2018-05-03
发表期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
EISSN1680-7324
出版年2018
卷号18期号:9页码:6207-6222
文章类型Article
语种英语
国家Peoples R China
英文摘要

Atmospheric deposition of long-range transport of anthropogenic reactive nitrogen (N-r, mainly comprised of NHx, NOy and water-soluble organic nitrogen, WSON) from continents may have profound impact on marine biogeochemistry. In addition, surface ocean dissolved organic nitrogen (DON) may also contribute to aerosol WSON in the overlying atmosphere. Despite the importance of off-continent dispersion and N-r interactions at the atmosphere-ocean boundary, our knowledge of the sources of various nitrogen species in the atmosphere over the open ocean remains limited due to insufficient observations. We conducted two cruises in the spring of 2014 and 2015 from the coast of China through the East China seas (ECSs, i.e. the Yellow Sea and East China Sea) to the open ocean (i.e. the Northwest Pacific Ocean, NWPO). Concentrations of water-soluble total nitrogen (WSTN), NO3- and NH4+, as well as the delta N-15 of WSTN and NO3- in marine aerosol, were measured during both cruises. In the spring of 2015, we also analysed the concentrations and delta N-15 of NO3- and the DON of surface seawater (SSW; at a depth of 5 m) along the cruise track. Aerosol NO3-, NH4+ and WSON decreased logarithmically (1-2 orders of magnitude) with distance from the shore, reflecting strong anthropogenic emission sources of NO3-, NH4+ and WSON in China. Average aerosol NO3- and NH4- concentrations were significantly higher in 2014 (even in the remote NWOP) than in 2015 due to the stronger wind field in 2014, underscoring the role of the Asian winter monsoon in the seaward transport of anthropogenic NO3- and NH4+. However, the background aerosol WSON over the NWPO in 2015 (13.3 +/- 8.5 nmol m(-3)) was similar to that in 2014 (12.2 +/- 6.3 nmol m(-3)), suggesting an additional non-anthropogenic WSON source in the open ocean. Obviously, marine DON emissions should be considered in model and field assessments of net atmospheric WSON deposition in the open ocean. This study contributes information on parallel isotopic marine DON composition and aerosol N-r datasets, but more research is required to explore complex N-r sources and deposition processes in order to advance our understanding of anthropogenic influences on the marine nitrogen cycle and nitrogen exchange at land-ocean and atmosphere-ocean interfaces.


领域地球科学
收录类别SCI-E
WOS记录号WOS:000431367200006
WOS关键词DISSOLVED ORGANIC NITROGEN ; OXYGEN ISOTOPIC COMPOSITION ; EAST CHINA SEA ; ANTHROPOGENIC NITROGEN ; RAINWATER NITRATE ; SIZE DISTRIBUTION ; DRY DEPOSITION ; BOUNDARY-LAYER ; FRESH-WATER ; DUST
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/30689
专题地球科学
作者单位1.East China Univ Technol, Jiangxi Prov Key Lab Causes & Control Atmospher P, Nanchang 330013, Jiangxi, Peoples R China;
2.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361102, Peoples R China;
3.East China Univ Technol, Sch Water Resources & Environm Engn, Nanchang 330013, Jiangxi, Peoples R China;
4.Ocean Univ China, Key Lab Marine Environm Sci & Ecol, Minist Educ, Qingdao 266100, Peoples R China;
5.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Temperate East Asia, Beijing 100029, Peoples R China
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GB/T 7714
Luo, Li,Kao, Shuh-Ji,Bao, Hongyan,et al. Sources of reactive nitrogen in marine aerosol over the Northwest Pacific Ocean in spring[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(9):6207-6222.
APA Luo, Li.,Kao, Shuh-Ji.,Bao, Hongyan.,Xiao, Huayun.,Xiao, Hongwei.,...&Lu, Yangyang.(2018).Sources of reactive nitrogen in marine aerosol over the Northwest Pacific Ocean in spring.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(9),6207-6222.
MLA Luo, Li,et al."Sources of reactive nitrogen in marine aerosol over the Northwest Pacific Ocean in spring".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.9(2018):6207-6222.
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