Magnetic particles in atmospheric particulate matter collected at sites with different level of air pollution
- 402 Downloads
Magnetic measurements of deposited atmospehric dust can serve as an additional parameter in assessing environmental pollution. This method is based on the assumption that atmospherically deposited particles contain significant portion of ferrimagnetic iron oxides of anthropogenic origin, which can be easily detected. Aim of this paper is to identify clearly magnetic fraction of daily samples of particulate matter less than 10 μm (PM10), routinely used for air quality assessment and monitoring. We used combination of thermomagnetic analyses and other physical and chemical methods, including scanning electron microscopy (SEM) and Mössbauer spectroscopy. Our results show that daily samples of PM10, collected at sites with different degree of atmospheric pollution, contain magnetite of spherical shape, which is presumably of industrial origin. Thus, magnetic methods can be applied directly to the same substances, which are used routinely in air quality assessment and monitoring.
Keywordsmagnetite atmospheric dust pollution rock magnetism
Unable to display preview. Download preview PDF.
- Bućko M.S., Magiera T., Johanson B., Petrovský E. and Pesonen L.J., 2011. Identification of magnetic particulates in road dust accumulated on roadside snow using magnetic, geochemical and micro-morphological analyses. Environ. Pollut., 159, 1266–1276, DOI: 10.1016/j.envpol.2011.01.030.CrossRefGoogle Scholar
- Čapek L., Kreibich V., Dědeček J., Grygar T., Wichterlová B., Sobalík Z., Martens J.A., Brosius R. and Tokarová V., 2005. Analysis of Fe species in zeolites by UV-VIS-NIR, IR spectra and voltammetry. Effect of preparation, Fe loading and zeolite type. Micropor. Mesopor. Mater., 80, 279–289.Google Scholar
- CHMI, 2007. Air Pollution Data. Annual Report, Czech Hydrometeorological Institue, Prague, Czech Republic, http://www.chmi.cz/uoco/isko/tab_roc/2007_enh/eng/index.html.Google Scholar
- Cornell R.M. and Schwertmann U., 2003. The Iron Oxides, Structure, Properties, Reactions, Occurrences and Use. 2nd Edition. Wiley-VCH, 152–160.Google Scholar
- Mang C. and Kontny A., 2013. Origin of two Verwey transitions in different generations of magnetite from the Chesapeake Bay impact structure, USA. J. Geophys. Res. (in print).Google Scholar
- Protonotarios V., Petsas N. and Moutsatsou A., 2002. Levels and composition of atmospheric particulates (PM10) in a mining-industrial site in the city of Lavrion, Greece. J. Air. Waste Manag. Assoc., 52, 11263–1273.Google Scholar
- Sagnotti L., Macri P., Egli R. and Mondino M., 2006. Magnetic properties of atmospheric particulate matter from automatic air sampler stations in Latium (Italy): Toward a definition of magnetic fingerprints for natural and anthropogenic PM10 sources. J. Geophys. Res., 111, B12S22, DOI: 10.1029/2006JB004508.CrossRefGoogle Scholar
- Scholz F., Schröder U. and Gulaboski R., 2005. Electrochemistry of Immobilized Particles and Droplets. Springer. Heidelberg, Berlin, Germanz, XIII, 290 pp., ISBN: 3-540-22005-4.Google Scholar
- Zhang C., Huang B., Piper J.D.A. and Luo R., 2008. Biomonitoring of atmospheric particulate matter using magnetic properties of Salix matsudana tree ring cores. Sci. Tot. Environ., 93, 177–190, DOI: 10.1016/j.scitotenv.2007.12.032.Google Scholar