Magnetic monitoring, geochemical and mineralogical analysis of settled dust from North and Central Transdanubia, Hungary

Emő Márton; Norbert Zajzon; Péter Lautner; Péter Sipos; Tibor Szentmarjay; Mihály Pethe

doi:10.1556/ceugeol.55.2012.4.1

Central European Geology

Volume/Issue:: Volume 55: Issue 4

Magnetic monitoring, geochemical and mineralogical analysis of settled dust from North and Central Transdanubia, Hungary

Authors:

Emő Márton

Emő Márton Paleomagnetic Laboratory, Geological and Geophysical Institute of Hungary, H-1145, Budapest, Columbus utca 17-23, Hungary

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Norbert Zajzon

Norbert Zajzon Institute of Mineralogy and Geology, University of Miskolc, H-3515, Miskolc, Egyetemváros, Hungary, askzn@uni-miskolc.hu

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Péter Lautner

Péter Lautner North Transdanubian Environmental, Nature Conservancy & Water Policy Inspectorate, H-9021, Győr, Árpád út 28-32, Hungary, lautner@edktvf.kvvm.hu

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Péter Sipos

Péter Sipos Institute for Geological and Geochemical Research, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, H-1112, Budapest, Budaörsi út 45, Hungary, sipos@geochem.hu

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Tibor Szentmarjay

Tibor Szentmarjay Central Transdanubian Environmental, Nature Conservancy & Water Policy Inspectorate, H-8201, Veszprém, Pf. 173, Hungary, tibor@szentmarjay.hu

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, and

Mihály Pethe

Mihály Pethe Geophysics Department, Eötvös Loránd University, H-1117, Budapest, Pázmány Péter sétány 1/C, Hungary, mifimester@gmail.com

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Pages:: 347–364

Online Publication Date:: 01 Dec 2012

Publication Date:: 01 Dec 2012

Article Category:: Research Article

DOI:: https://doi.org/10.1556/ceugeol.55.2012.4.1

Keywords:: Environmental magnetism; Hungarian air monitoring stations; settled dust; composition; total susceptibility; mass susceptibility; long-term susceptibility trends

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Abstract

Ferromagnetic grains in airborne dust are important indicators of vehicle traffic, some industrial sources and combustion/heating. Settled dust consists mainly of diamagnetic material; therefore accessory ferromagnetic grains are readily indicated by magnetic measurements. In this paper settled dust samples collected on a monthly basis in the years 2008–2011 were studied. Non-destructive magnetic measurements were followed by geochemical and mineralogical analyses. In selected samples we identified airborne anthropogenic materials (e.g. silicate and magnetite spherules), minerals from the natural environment and organic material. Seasonally appearing materials (e.g. soot in winter, plant fragments and pollen in summer) increased the mass of the settled dust, but not the magnetic susceptibility. Thus, we realized that the generally interpreted mass susceptibility in environmental magnetic studies would not always appropriately characterize the magnetic pollution. In the interpretation we gave preference to total susceptibility because of its direct connection to the pollution, except in comparison with metal concentrations.

Trends in magnetic pollution were eventually analyzed for 19 sampling sites. Irrespective of the degree and source of the pollution the monthly variation curves of magnetic susceptibility exhibit a general maximum (March-April), followed by gradual decrease. A corresponding peak is observed in the amounts of dust. Both can be explained by re-suspension of dust settled in winter. The additional maxima in the mass of the dust (June and August, respectively) are probably due to contribution from vegetation and/or an artifact from algaecide. For three key sampling sites comparison was made between the concentrations of 12 metals and the respective mass susceptibilities and good linear correlation was found for Fe, Mn and Zn for all, for Cr, Cu, Pb, V, Ba, Sr and Zr for two sampling sites. Cd, which is enriched in all samples, does not correlate with the magnetic susceptibility.

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Central European Geology

Print ISSN:: 1788-2281

Online ISSN:: 1789-3348

Editorial Board

Zsolt BENKÓ (Geochemistry, Ar dating; Institute for Nuclear Research, Debrecen)
Szabolcs HARANGI (Petrology, geochemistry, volcanology; Eötvös Loránd University, Budapest)
Anette GÖTZ (Sedimentology; Landesamt für Bergbau, Energie und Geologie, Hannover)
János HAAS (Regional Geology and Sedimentology; Eötvös Loránd University, Budapest)
István Gábor HATVANI (Geomathematics; Institute for Geological and Geochemical Research, Budapest)
Henry M. LIEBERMAN (Language Editor; Salt Lake City)
János KOVÁCS (Quaternary geology; University of Pécs)
Szilvia KÖVÉR (Sedimentology; Eötvös Loránd University, Budapest)
Tivadar M. TÓTH (Mineralogy; Petrology University of Szeged)
Stephen J. MOJZSIS (Petrology, geochemistry and planetology; University of Colorado Boulder)
Norbert NÉMETH (Structural geology; University of Miskolc)
Attila ŐSI (Paleontology; Eötvös Loránd University, Budapest)
József PÁLFY (Fossils and Stratigraphic Records; Eötvös Loránd University, Budapest)
György POGÁCSÁS (Petroleum Geology; Eötvös Loránd University, Budapest)
Krisztina SEBE (Tectonics, sedimentology, geomorphology University of Pécs)
Ioan SEGHEDY (Petrology and geochemistry; Institute of Geodynamics, Bucharest)
Lóránd SILYE (Paleontology; Babeș-Bolyai University, Cluj-Napoca)
Ákos TÖRÖK (Applied and Environmental Earth Sciences; Budapest University of Technology and Economics, Budapest)
Norbert ZAJZON (Petrology and geochemistry; University of Miskolc)
Ferenc MOLNÁR (ore geology, geochemistry, geochronology, archaeometry; Geological Survey of Finland, Espoo)

Advisory Board

Due to the changes in editorial functions, the Advisory Board has been terminated. The participation of former Advisory Board members is highly appreciated and gratefully thanked.

CENTRAL EUROPEAN GEOLOGY
Institute for Geochemical Research
Hungarian Academy of Sciences
Address: Budaörsi út 45. H-1112 Budapest, Hungary
Phone: (06 1) 309 2681
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E-mail: demeny@geochem.hu

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Central European Geology
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Central European Geology
Language	English
Size	Vol 1-63: B5 Vol 64- : A4
Year of Foundation	2007 (1952)
Volumes per Year	1
Issues per Year	2
Founder	Magyar Tudományos Akadémia
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ISSN	1788-2281 (Print)
ISSN	1789-3348 (Online)