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Important contributions of non-fossil fuel nitrogen oxides emissions

Nature communications, 2021-01, Vol.12 (1), p.243-7, Article 243 [Peer Reviewed Journal]

The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2021 ;ISSN: 2041-1723 ;EISSN: 2041-1723 ;DOI: 10.1038/s41467-020-20356-0 ;PMID: 33431857

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  • Title:
    Important contributions of non-fossil fuel nitrogen oxides emissions
  • Author: Song, Wei ; Liu, Xue-Yan ; Hu, Chao-Chen ; Chen, Guan-Yi ; Liu, Xue-Jun ; Walters, Wendell W ; Michalski, Greg ; Liu, Cong-Qiang
  • Subjects: Air pollution ; Earth surface ; Emissions ; Fossil fuels ; Industrial emissions ; Isotopes ; Mass balance ; Nitrogen ; Nitrogen cycle ; Nitrogen oxides ; Photochemicals ; Terrestrial environments
  • Is Part Of: Nature communications, 2021-01, Vol.12 (1), p.243-7, Article 243
  • Description: Since the industrial revolution, it has been assumed that fossil-fuel combustions dominate increasing nitrogen oxide (NO ) emissions. However, it remains uncertain to the actual contribution of the non-fossil fuel NO to total NO emissions. Natural N isotopes of NO in precipitation (δ N ) have been widely employed for tracing atmospheric NO sources. Here, we compiled global δ N observations to evaluate the relative importance of fossil and non-fossil fuel NO emissions. We found that regional differences in human activities directly influenced spatial-temporal patterns of δ N variations. Further, isotope mass-balance and bottom-up calculations suggest that the non-fossil fuel NO accounts for 55 ± 7% of total NO emissions, reaching up to 21.6 ± 16.6Mt yr in East Asia, 7.4 ± 5.5Mt yr in Europe, and 21.8 ± 18.5Mt yr in North America, respectively. These results reveal the importance of non-fossil fuel NO emissions and provide direct evidence for making strategies on mitigating atmospheric NO pollution.
  • Publisher: England: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2041-1723
    EISSN: 2041-1723
    DOI: 10.1038/s41467-020-20356-0
    PMID: 33431857
  • Source: PubMed Central
    ProQuest Central
    DOAJ Directory of Open Access Journals
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