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Mazur, D.M.* ; Harir, M. ; Schmitt-Kopplin, P. ; Polyakova, O.V.* ; Lebedev, A.T.*

High field FT-ICR mass spectrometry for molecular characterization of snow board from Moscow regions.

Sci. Total Environ. 557-558, 12-19 (2016)
Postprint DOI PMC
Open Access Green
High field Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry analysis of eight snow samples from Moscow city allowed us to identify more than 2000 various elemental compositions corresponding to regional air pollutants. The hierarchical cluster analysis (HCA) of the data showed good concordance of three main groups of samples with the main wind directions. The North-West group (A1) is represented by several homologous CHOS series of aliphatic organic aerosols. They may form as a result of enhanced photochemical reactions including oxidation of hydrocarbons with sulfonations due to higher amount of SO2 emissions in the atmosphere in this region. Group A2, corresponding to the South-East part of Moscow, contains large amount of oxidized hydrocarbons of different sources that may form during oxidation in atmosphere. These hydrocarbons appear correlated to emissions from traffic, neighboring oil refinery, and power plants. Another family of compounds specific for this region involves CHNO substances formed during oxidation processes including NOx and NO3 radical since emissions of NOx are higher in this part of the city. Group A3 is rich in CHO type of compounds with high H/C and low O/C ratios, which is characteristic of oxidized hydrocarbon-like organic aerosol. CHNO types of compounds in A3 group are probably nitro derivatives of condensed hydrocarbons such as PAH. This non-targeted profiling revealed site specific distribution of pollutants and gives a chance to develop new strategies in air quality control and further studies of Moscow environment.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Air Pollution ; Ft-icr-ms ; Hca ; Molecular Compositions ; Moscow Region ; Snow Boards; Secondary Organic Aerosol; Naphthenic Acids; Chlorinated Hydrocarbons; Electrospray-ionization; Atmospheric Aerosols; Nso Compounds; Identification; Matter; Contamination; Pollutants
Language english
Publication Year 2016
HGF-reported in Year 2016
ISSN (print) / ISBN 0048-9697
e-ISSN 1879-1026
Quellenangaben Volume: 557-558, Issue: , Pages: 12-19 Article Number: , Supplement: ,
Publisher Elsevier
Publishing Place Amsterdam
Reviewing status Peer reviewed
POF-Topic(s) 30202 - Environmental Health
Research field(s) Environmental Sciences
PSP Element(s) G-504800-001
Scopus ID 84960982120
PubMed ID 26994789
Erfassungsdatum 2016-03-24