State-of-Art in Atmospheric Photochemical Pollution

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Air Quality".

Deadline for manuscript submissions: closed (15 December 2021) | Viewed by 2964

Special Issue Editors


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Guest Editor
A.M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, Pyzhevskii per. 3, 119017 Moscow, Russia
Interests: atmospheric chemistry; tropospheric ozone; VOCs; urban pollution; natural radioactivity; air quality; tropospheric methane

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Guest Editor
A.M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, 3 Pyzhevsky, 119017 Moscow, Russia
Interests: atmospheric composition; Arctic atmosphere; VOCs; aerosol optical thickness

Special Issue Information

Dear Colleagues,

As a Guest Editor of the journal Atmosphere (ISSN 2073-4433, SCIE, IF: 2.397), I would like to invite you to submit a paper to the Special Issue, "State-of-Art in Atmospheric Photochemical Pollution".

Photochemical pollution is a significant problem for all of the main urban and industrial areas of the world. It occurs in or near areas with a high traffic density and in the presence of specific climatic conditions, which causes the concentration of polluting gases to increase and prevents them from dispersing. In these areas, photochemical pollutants (tropospheric ozone, carbon monoxide, particulate, VOCs, etc.) very often exceed their threshold values, above which there are risks for human health and ecosystems. Interactions of photochemical pollutants are very complex and their mechanisms are only partially known, with the pollution situation rapidly changing in the midst of climate change and pollution sources. Accurate and specific measurements of photochemical pollutants are central in order to understand their atmospheric chemistry and to develop predictive capabilities. The key element for developing a predictive capability for atmospheric chemistry is simulation. Substantial advancements are required, including acquiring more observations of chemical species across temporal and spatial scales for chemical data assimilation and model evaluation. The measurements and simulations of photochemical pollutants, their emissions, and the mechanisms of their transformation are very important for environmental risk assessment and pollution control strategy development.

Manuscripts related to the following key problems are welcome for this Special Issue:

  • Advancement of the fundamental atmospheric chemistry knowledge that enables predictive capability for the distribution, reactions, and lifetimes of photochemical pollutants;
  • Influence of photochemical pollutants on urban air quality;
  • Quantifying the emissions and deposition of photochemical pollutants in a changing Earth system;
  • Advancement of the integration of atmospheric chemistry within weather and climate models in order to improve forecasting in a changing Earth system.
  • Understanding the sources and atmospheric processes controlling the photochemical pollutants most deleterious to human health.

Dr. Elena Berezina
Dr. Natalia Pankratova
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Atmosphere is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Atmospheric chemistry
  • Photochemical pollutants
  • Urban air quality
  • Simulation
  • Emissions
  • Volatile organic compounds
  • Ozone
  • Aerosols
  • Predictive capabilities

Published Papers (1 paper)

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Research

20 pages, 4008 KiB  
Article
Emission Ratios and Source Identification of VOCs in Moscow in 2019–2020
by Elena Berezina, Konstantin Moiseenko, Anastasia Vasileva, Natalia Pankratova, Andrey Skorokhod, Igor Belikov and Valery Belousov
Atmosphere 2022, 13(2), 257; https://doi.org/10.3390/atmos13020257 - 2 Feb 2022
Cited by 8 | Viewed by 2332
Abstract
Measurements of CO and 15 volatile organic compounds (VOCs) at the IAP-RAS (A.M. Obukhov Institute of Atmospheric Physics) site located in the center of Moscow were analyzed. Acetaldehyde, ethanol, 1.3-butadiene, isoprene, toluene and C-8 aromatics were established to be the main ozone precursors [...] Read more.
Measurements of CO and 15 volatile organic compounds (VOCs) at the IAP-RAS (A.M. Obukhov Institute of Atmospheric Physics) site located in the center of Moscow were analyzed. Acetaldehyde, ethanol, 1.3-butadiene, isoprene, toluene and C-8 aromatics were established to be the main ozone precursors in the observed area, providing up to 82% of the total ozone formation potential of the VOCs measured. Diurnal and seasonal variations of the compounds are discussed. The concentrations of anthropogenic VOCs (acetaldehyde, benzene, 1.3-butadiene, toluene, and C-8 aromatics) did not exceed their maximum permissible levels, reaching their maxima in summer and autumn in the morning and evening hours. Biogenic ethanol and isoprene were the highest in summer midday but their concentrations were low enough (up to 4 and 0.4 ppbv, respectively) due to small vegetation area around the site. Emission ratios (ERs) for the main ozone precursors—acetaldehyde, ethanol, 1.3-butadiene, isoprene, toluene, and C-8 aromatics—were estimated from two-sided linear regression fits using benzene and CO as tracers for anthropogenic emissions, with spatial and temporal filters being applied to account for the influence of chemistry and local emission sources. The best estimates of ERs were obtained using benzene as a reference species. Anthropogenic fractions of VOCs (AFs) were then estimated. As expected, acetaldehyde, toluene, 1.3-butadiene, and C8aromatics were entirely anthropogenic and emitted mainly from urban vehicle exhausts throughout the day, both in summer and in winter. AFs of isoprene and ethanol did not exceed 30% and 50% in summer, respectively, during both daytime and nighttime hours. In winter, the anthropogenic fractions of isoprene and ethanol were slightly higher (up to 35% and 60%, respectively). Full article
(This article belongs to the Special Issue State-of-Art in Atmospheric Photochemical Pollution)
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