Nitrogen isotope fractionation during gas-to-particle conversion of NOx to NO3− in the atmosphere – implications for isotope-based NOx source apportionment
Yunhua Chang,Yanlin Zhang,Chongguo Tian,Shichun Zhang,Xiaoyan Ma,Fang Cao,Xiaoyan Liu,Wenqi Zhang,Thomas Kuhn,and Moritz F. Lehmann
Yale–NUIST Center on Atmospheric Environment, International Joint
Laboratory on Climate and Environment Change (ILCEC), Nanjing University of
Information Science & Technology, Nanjing 210044, China
Key Laboratory of Meteorological Disaster, Ministry of Education
(KLME)/ Collaborative Innovation Center on Forecast and Evaluation of
Meteorological Disasters (CIC-FEMD), Nanjing University of Information
Science & Technology, Nanjing 210044, China
Jiangsu Provincial Key Laboratory of Agricultural Meteorology, College
of Applied Meteorology, Nanjing University of Information Science &
Technology, Nanjing 210044, China
Yale–NUIST Center on Atmospheric Environment, International Joint
Laboratory on Climate and Environment Change (ILCEC), Nanjing University of
Information Science & Technology, Nanjing 210044, China
Key Laboratory of Meteorological Disaster, Ministry of Education
(KLME)/ Collaborative Innovation Center on Forecast and Evaluation of
Meteorological Disasters (CIC-FEMD), Nanjing University of Information
Science & Technology, Nanjing 210044, China
Jiangsu Provincial Key Laboratory of Agricultural Meteorology, College
of Applied Meteorology, Nanjing University of Information Science &
Technology, Nanjing 210044, China
Chongguo Tian
Key Laboratory of Coastal Environmental Processes and Ecological
Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of
Sciences, Yantai 264003, China
Shichun Zhang
Northeast Institute of Geography and Agroecology, Chinese Academy of
Sciences, 4888 Shengbei Road, Changchun 130102, China
Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological
Administration, Earth System Modeling Center, Nanjing University of
Information Science and Technology, Nanjing 10044, China
Fang Cao
Yale–NUIST Center on Atmospheric Environment, International Joint
Laboratory on Climate and Environment Change (ILCEC), Nanjing University of
Information Science & Technology, Nanjing 210044, China
Key Laboratory of Meteorological Disaster, Ministry of Education
(KLME)/ Collaborative Innovation Center on Forecast and Evaluation of
Meteorological Disasters (CIC-FEMD), Nanjing University of Information
Science & Technology, Nanjing 210044, China
Jiangsu Provincial Key Laboratory of Agricultural Meteorology, College
of Applied Meteorology, Nanjing University of Information Science &
Technology, Nanjing 210044, China
Xiaoyan Liu
Yale–NUIST Center on Atmospheric Environment, International Joint
Laboratory on Climate and Environment Change (ILCEC), Nanjing University of
Information Science & Technology, Nanjing 210044, China
Key Laboratory of Meteorological Disaster, Ministry of Education
(KLME)/ Collaborative Innovation Center on Forecast and Evaluation of
Meteorological Disasters (CIC-FEMD), Nanjing University of Information
Science & Technology, Nanjing 210044, China
Jiangsu Provincial Key Laboratory of Agricultural Meteorology, College
of Applied Meteorology, Nanjing University of Information Science &
Technology, Nanjing 210044, China
Yale–NUIST Center on Atmospheric Environment, International Joint
Laboratory on Climate and Environment Change (ILCEC), Nanjing University of
Information Science & Technology, Nanjing 210044, China
Key Laboratory of Meteorological Disaster, Ministry of Education
(KLME)/ Collaborative Innovation Center on Forecast and Evaluation of
Meteorological Disasters (CIC-FEMD), Nanjing University of Information
Science & Technology, Nanjing 210044, China
Jiangsu Provincial Key Laboratory of Agricultural Meteorology, College
of Applied Meteorology, Nanjing University of Information Science &
Technology, Nanjing 210044, China
Thomas Kuhn
Aquatic and Isotope Biogeochemistry, Department of Environmental
Sciences, University of Basel, 4056 Basel, Switzerland
Moritz F. Lehmann
Aquatic and Isotope Biogeochemistry, Department of Environmental
Sciences, University of Basel, 4056 Basel, Switzerland
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We demonstrate that it is imperative that future studies, making use of isotope mixing models to gain conclusive constraints on the source partitioning of atmospheric NOx, consider this N isotope fractionation. Future assessments of NOx emissions in China (and elsewhere) should involve simultaneous δ15N and δ18O measurements of atmospheric nitrate and NOx at high spatiotemporal resolution, allowing former N-isotope-based NOx source partitioning estimates to be reevaluated more quantitatively.
We demonstrate that it is imperative that future studies, making use of isotope mixing models to...
