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Snow scavenging and phase partitioning of nitrated and oxygenated aromatic hydrocarbons in polluted and remote environments in central Europe and the European Arctic

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00101686" target="_blank" >RIV/00216224:14310/18:00101686 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.atmos-chem-phys.net/18/13495/2018/" target="_blank" >https://www.atmos-chem-phys.net/18/13495/2018/</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.5194/acp-18-13495-2018" target="_blank" >10.5194/acp-18-13495-2018</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Snow scavenging and phase partitioning of nitrated and oxygenated aromatic hydrocarbons in polluted and remote environments in central Europe and the European Arctic

  • Original language description

    Nitrated and oxygenated polycyclic aromatic hydrocarbons (N/OPAHs) are emitted in combustion processes and formed in polluted air. Their environmental cycling through wet deposition has hardly been studied. Fresh snow samples at urban and rural sites in central Europe, as well as surface snow from a remote site in Svalbard, were analysed for 17 NPAHs, 8 OPAHs, and 11 nitrated mono-aromatic hydrocarbons (NMAHs), of which most N/OPAHs as well as nitrocatechols, nitrosalicylic acids, and 4-nitroguaiacol are studied for the first time in precipitation. In order to better understand the scavenging mechanisms, the particulate mass fractions (theta) at 273 K were predicted using a multi-phase gasparticle partitioning model based on polyparameter linear free energy relationships. Sigma NPAH concentrations were 1.217.6 and 8.8-19.1 ng L-1 at urban and rural sites, whereas EOPAHs were 79.8-955.2 and 343.3-1757.4 ng L-1 at these sites, respectively. 9,10-anthraquinone was predominant in snow aqueous and particulate phases. NPAHs were only found in the particulate phase with 9-nitroanthracene being predominant followed by 2-nitrofluoranthene. Among NMAHs, 4-nitrophenol showed the highest abundance in both phases. The levels found for nitrophenols were in the same range or lower than those reported in the 1980s and 1990s. The lowest levels of Sigma N/OPAHs and Sigma NMAHs were found at the remote site (3.5 and 390.5 ng L-1, respectively). N/OPAHs preferentially partitioned in snow particulate phase in accordance with predicted theta, whereas NMAHs were predominant in the aqueous phase, regardless of theta. It is concluded that the phase distribution of non-polar N/OPAHs in snow is determined by their gas-particle partitioning prior to snow scavenging, whereas that for polar particulate phase substances, i.e. NMAHs, is determined by an interplay between gas-particle partitioning in the aerosol and dissolution during in- or below-cloud scavenging.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10509 - Meteorology and atmospheric sciences

Result continuities

  • Project

    <a href="/en/project/GA16-11537S" target="_blank" >GA16-11537S: Transformation products of mono- and polyaromatic hydrocarbons in atmospheric aerosols – priority hazardous pollutants</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Atmospheric Chemistry and Physics

  • ISSN

    1680-7316

  • e-ISSN

  • Volume of the periodical

    18

  • Issue of the periodical within the volume

    18

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    16

  • Pages from-to

    13495-13510

  • UT code for WoS article

    000445398900001

  • EID of the result in the Scopus database