Integrated mineralogical and magnetic study of magnetic airborne particles from potential pollution sources in industrial-urban environment

Norbert Zajzon, E. Márton, Péter Sipos, Ferenc Kristály, Tibor Németh, Viktória Kis-kovács, Tamás G. Weiszburg

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Steel works, combustion of fossil fuel, and vehicles are the most important sources of magnetic particulate matter in the industrial-urban environment. These particles are easily detectable by magnetic measurements on the field. In this paper we present a multidisciplinary mineralogical and magnetic study on some samples directly or closely associated with their pollution sources. Detailed mineralogical investigations (XRD, SEM-EDX, WDX, ATEM) and special magnetic measurements (mass susceptibility, Curie-point, decay rate of the isothermal remanent magnetization in time, frequency dependence of the magnetic susceptibility) were carried out on representative samples. Magnetite was identified as the most important inorganic pollutant using magnetic and mineralogical methods. We found that it had no distinct chemical composition or morphological difference for the different sources, but the extremely small grains are primarily characteristic of traffic. The grain size of magnetite spherules showed decrease among the different sources with the following order: steel factories, combustion plants, traffic. The presence of magnetite as pollutant in the environment can be monitored more easily and costeffectively by magnetic than mineralogical methods. Nevertheless, the magnetic methods should be combined with detailed mineralogical investigations on representative samples selected by their magnetic properties, in order to obtain full information about the pollutants, including non-magnetic constituents. Additionally, the role of different pollution sources have to be estimated by the complex analyses of the different grain sizes of the dust collected regularly for a long time.

Original languageEnglish
Pages (from-to)179-186
Number of pages8
JournalCarpathian Journal of Earth and Environmental Sciences
Volume8
Issue number1
Publication statusPublished - 2013

Fingerprint

pollutant source
magnetite
grain size
combustion
steel
magnetic method
Curie point
spherule
frequency dependence
pollutant
remanent magnetization
magnetic property
magnetic susceptibility
fossil fuel
particulate matter
chemical composition
scanning electron microscopy
X-ray diffraction
dust
particle

Keywords

  • Air pollution
  • Different pollution sources
  • Magnetite spherules
  • Mineralogy of airborne particles
  • Total and mass susceptibility

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Integrated mineralogical and magnetic study of magnetic airborne particles from potential pollution sources in industrial-urban environment. / Zajzon, Norbert; Márton, E.; Sipos, Péter; Kristály, Ferenc; Németh, Tibor; Kis-kovács, Viktória; Weiszburg, Tamás G.

In: Carpathian Journal of Earth and Environmental Sciences, Vol. 8, No. 1, 2013, p. 179-186.

Research output: Contribution to journalArticle

Zajzon, Norbert ; Márton, E. ; Sipos, Péter ; Kristály, Ferenc ; Németh, Tibor ; Kis-kovács, Viktória ; Weiszburg, Tamás G. / Integrated mineralogical and magnetic study of magnetic airborne particles from potential pollution sources in industrial-urban environment. In: Carpathian Journal of Earth and Environmental Sciences. 2013 ; Vol. 8, No. 1. pp. 179-186.
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