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Emissions of Ammonia and Other Nitrogen-Containing Volatile Organic Compounds from Motor Vehicles under Low-Speed Driving ConditionsAmmonia (NH3) and amines are major alkaline gases in the atmosphere. Despite their relatively low ambient concentrations (a few ppbv for NH3 and several pptv for amines), these trace gases can significantly impact atmospheric chemical processes. Globally, agriculture-related activities and anthropogenic sources are recognized as the important NH3 source. And recent field studies found that motor vehicles are also a potential source of amines that could be responsible for the enhanced nucleation events in Beijing, China. As organic derivatives of NH3, amines often share with NH3 their source profiles, but the magnitude of amine emissions is still unknown. ...
release time: 2022 - 06 - 01
D. E. Pataki1 J. R. Ehleringer1 L. B. Flanagan2 D. Yakir3 D. R. Bowling1 C. J. Still4,51 Department of Biology, University of Utah 2 Department of Life Sciences, University of Lethbridge 3 Weizmann Institute 4 University of California Berkeley Atmosphere Center 5 Department of Geography, University of California GLOBAL BIOGEOCHEMICAL CYCLES, VOL. 17, NO. 1, 1022, doi:10.1029/2001GB001850, 2003 Abstract: The effects of photosynthesis and respiration on the atmosphere can be used to study global carbon sink/source estimates and to distinguish ecosystem fluxes. Therefore, Keeling plot&#...
release time: 2018 - 04 - 24
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