Articles | Volume 23, issue 14
https://doi.org/10.5194/acp-23-8001-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-8001-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
18 Jul 2023
Research article |
| 18 Jul 2023
| 18 Jul 2023
Remotely sensed and surface measurement- derived mass-conserving inversion of daily NOx emissions and inferred combustion technologies in energy-rich northern China
Xiaolu Li
Institute of Environmental Science, Shanxi University, Taiyuan,
030006, China
School of Environment and Spatial Informatics, China University of
Mining and Technology, Xuzhou, 221116, China
School of Environment and Spatial Informatics, China University of
Mining and Technology, Xuzhou, 221116, China
School of Environment and Spatial Informatics, China University of
Mining and Technology, Xuzhou, 221116, China
Hong Geng
Institute of Environmental Science, Shanxi University, Taiyuan,
030006, China
Xiaohui Wu
Shanxi Dadi Ecology and Environment Technology Research Institute
Ltd., Taiyuan, 030000, China
Liling Wu
School of Environment, Tsinghua University, Beijing, 10084, China
Chengli Yang
Shanxi Dadi Ecology and Environment Technology Research Institute
Ltd., Taiyuan, 030000, China
Rui Zhang
Shanxi Institute of Ecology and Environment Planning and Technology, Taiyuan, 030002, China
Liqin Zhang
Shanxi Institute of Ecology and Environment Monitoring and Emergency Response Center, Taiyuan, 030027, China
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Short summary
Remotely sensed NO2 and surface NOx are combined with a mathematical method to estimate daily NOx emissions. The results identify new sources and improve existing estimates. The estimation is driven by three flexible factors: thermodynamics of combustion, chemical loss, and atmospheric transport. The thermodynamic term separates power, iron, and cement from coking, boilers, and aluminum. This work finds three causes for the extremes: emissions, UV radiation, and transport.
Remotely sensed NO2 and surface NOx are combined with a mathematical method to estimate daily...
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