Atmospheric Reactive Nitrogen: Recent Trends, Current Progress and Future Directions
A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Air Quality".
Deadline for manuscript submissions: closed (30 November 2022) | Viewed by 947
Special Issue Editors
Interests: atmospheric chemistry; reactive nitrogen; tropospheric ozone; biomass burning; modeling
Interests: reactive nitrogen oxides; nitrogen containing aerosol; organic nitrogen; particulate matter; emission; secondary formation; source apportionment; modelling; bigdata analysis
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Special Issue Information
Dear Colleagues,
Reactive nitrogen includes all the nitrogen-containing species that are biologically, photochemically and radiatively active in the atmosphere, such as nitrogen oxides (NOx), nitric acid (HNO3), nitrous acid (HONO), nitrate radical (NO3), dinitrogen pentoxide (N2O5), ammonia (NH3), inorganic and organic nitrate, nitro-aromatic compounds, amines, etc. Although the abundances of reactive nitrogen species are generally at trace levels, they play important roles in atmospheric chemistry and are closely associated with regional air pollution. For instance, the chemistry of reactive nitrogen significantly affects the level of the tropospheric oxidizing capacity that determines the lifetime of greenhouse gases (i.e., methane) and the removal of other primary pollutants, as well as the formation of secondary pollutants (aerosol, ozone, etc.). In particular, in polluted regions, such as urban areas, reactive nitrogen species exhibit relatively higher abundances, and their impacts on regional air quality are more pronounced. However, there are still puzzles in atmospheric reactive nitrogen, e.g., 1) the sources of HONO and its role in atmospheric oxidizing capacity; 2) detection of NO3 radical and quantification of its atmospheric impacts; 3) the heterogeneous uptake of N2O5 and the formation of aerosol nitrate and chlorine nitrite; 4) long-term trends of NOx and NH3 and related consequences on air quality, including the levels of aerosol and ozone; 5) source apportionment of organic-nitrogen-containing components such as nitro-aromatic compounds and amines, etc. In addition, the changes in regional or global reactive nitrogen levels caused by the COVID-19 lockdown and the following impacts should also be quantified.
The goal of this Special Issue is to collect recent findings related to reactive nitrogen chemistry such as their sources, sinks, chemical processes and atmospheric impacts. These findings could take the form of field, laboratory or modeling studies. Please note that this Special Issue is not limited to the above topics.
Dr. Chaoyang Xue
Dr. Xinfeng Wang
Guest Editors
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Keywords
- field measurements
- laboratory experiments
- modeling simulation
- reactive nitrogen
- nitrogen oxides (NOx)
- nitrous acid (HONO)
- chlorine nitrite (ClNO2)
- atmospheric oxidizing capacity
- peroxyacetyl nitrate (PAN)
- ammonia (NH3)
- nitrates
- amines
- organic nitrogen
- aerosols
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