Source forensics of inorganic and organic nitrogen using δ15N for tropospheric aerosols over Mt. Tai

Abstract Nitrogen-containing species are major components in atmospheric aerosols. However, little is known about the sources of N-containing aerosols over high mountainous regions, especially for organic nitrogen (ON). This study aims to reveal the emission sources of both inorganic and organic nit...

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Autores principales:	Libin Wu, Siyao Yue, Zongbo Shi, Wei Hu, Jing Chen, Hong Ren, Junjun Deng, Lujie Ren, Yunting Fang, Hong Yan, Weijun Li, Roy M. Harrison, Pingqing Fu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Environmental sciences GE1-350 Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/b9f3149b5dce46eaa1b7da2df3c0bbc4
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spelling	oai:doaj.org-article:b9f3149b5dce46eaa1b7da2df3c0bbc42021-12-02T14:21:20ZSource forensics of inorganic and organic nitrogen using δ15N for tropospheric aerosols over Mt. Tai10.1038/s41612-021-00163-02397-3722https://doaj.org/article/b9f3149b5dce46eaa1b7da2df3c0bbc42021-02-01T00:00:00Zhttps://doi.org/10.1038/s41612-021-00163-0https://doaj.org/toc/2397-3722Abstract Nitrogen-containing species are major components in atmospheric aerosols. However, little is known about the sources of N-containing aerosols over high mountainous regions, especially for organic nitrogen (ON). This study aims to reveal the emission sources of both inorganic and organic nitrogen in tropospheric aerosols atop Mt. Tai, China, and to improve our understanding of the N cycle imbalance in the North China Plain (NCP). Total suspended particle (TSP) samples were collected on a daytime/nighttime basis in spring 2017 and were investigated for the concentrations and stable N isotopic compositions of total nitrogen, NH4 +, NO3 − and ON. Our results show that the concentrations of N-containing compounds were higher in daytime than nighttime, mainly resulting from mountain–valley breezes and the changes of planetary boundary layer height. However, no significant day/nighttime changes were found for their corresponding δ15N values, indicating similar contributions from different N sources between day and night. The MixSIAR Bayesian stable isotope mixing model results suggest that the most important emission source of NH3 for aerosol NH4 + was agriculture, followed by fossil fuel-related sources, human waste and biomass burning. Aerosol NO3 − was mainly formed from combustion and mobile emitted NO x . Interestingly, the isotopes of ON suggest that ON were very likely firstly of primary origin. Our study reveals the characteristics of reactive N emission sources and helps understand the regional transport of tropospheric N-containing aerosols in the NCP.Libin WuSiyao YueZongbo ShiWei HuJing ChenHong RenJunjun DengLujie RenYunting FangHong YanWeijun LiRoy M. HarrisonPingqing FuNature PortfolioarticleEnvironmental sciencesGE1-350Meteorology. ClimatologyQC851-999ENnpj Climate and Atmospheric Science, Vol 4, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Environmental sciences GE1-350 Meteorology. Climatology QC851-999
spellingShingle	Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Libin Wu Siyao Yue Zongbo Shi Wei Hu Jing Chen Hong Ren Junjun Deng Lujie Ren Yunting Fang Hong Yan Weijun Li Roy M. Harrison Pingqing Fu Source forensics of inorganic and organic nitrogen using δ15N for tropospheric aerosols over Mt. Tai
description	Abstract Nitrogen-containing species are major components in atmospheric aerosols. However, little is known about the sources of N-containing aerosols over high mountainous regions, especially for organic nitrogen (ON). This study aims to reveal the emission sources of both inorganic and organic nitrogen in tropospheric aerosols atop Mt. Tai, China, and to improve our understanding of the N cycle imbalance in the North China Plain (NCP). Total suspended particle (TSP) samples were collected on a daytime/nighttime basis in spring 2017 and were investigated for the concentrations and stable N isotopic compositions of total nitrogen, NH4 +, NO3 − and ON. Our results show that the concentrations of N-containing compounds were higher in daytime than nighttime, mainly resulting from mountain–valley breezes and the changes of planetary boundary layer height. However, no significant day/nighttime changes were found for their corresponding δ15N values, indicating similar contributions from different N sources between day and night. The MixSIAR Bayesian stable isotope mixing model results suggest that the most important emission source of NH3 for aerosol NH4 + was agriculture, followed by fossil fuel-related sources, human waste and biomass burning. Aerosol NO3 − was mainly formed from combustion and mobile emitted NO x . Interestingly, the isotopes of ON suggest that ON were very likely firstly of primary origin. Our study reveals the characteristics of reactive N emission sources and helps understand the regional transport of tropospheric N-containing aerosols in the NCP.
format	article
author	Libin Wu Siyao Yue Zongbo Shi Wei Hu Jing Chen Hong Ren Junjun Deng Lujie Ren Yunting Fang Hong Yan Weijun Li Roy M. Harrison Pingqing Fu
author_facet	Libin Wu Siyao Yue Zongbo Shi Wei Hu Jing Chen Hong Ren Junjun Deng Lujie Ren Yunting Fang Hong Yan Weijun Li Roy M. Harrison Pingqing Fu
author_sort	Libin Wu
title	Source forensics of inorganic and organic nitrogen using δ15N for tropospheric aerosols over Mt. Tai
title_short	Source forensics of inorganic and organic nitrogen using δ15N for tropospheric aerosols over Mt. Tai
title_full	Source forensics of inorganic and organic nitrogen using δ15N for tropospheric aerosols over Mt. Tai
title_fullStr	Source forensics of inorganic and organic nitrogen using δ15N for tropospheric aerosols over Mt. Tai
title_full_unstemmed	Source forensics of inorganic and organic nitrogen using δ15N for tropospheric aerosols over Mt. Tai
title_sort	source forensics of inorganic and organic nitrogen using δ15n for tropospheric aerosols over mt. tai
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b9f3149b5dce46eaa1b7da2df3c0bbc4
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Source forensics of inorganic and organic nitrogen using δ15N for tropospheric aerosols over Mt. Tai

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