Record details

    Magnetic particles in atmospheric particulate matter collected at sites with different level of air pollution
    Grison, Hana
    Kapička, Aleš
    Kotlík, B.
    Matys Grygar, Tomáš
    Novák, J.
    Petrovský, Eduard
    Zbořil, R.
Publication type
    článek v odborném periodiku
Source title - serial
    Studia geophysica et geodaetica
    Roč. 57, č. 4
    s. 755-770
    Projekt: GAP210/10/0554, GA ČR3cav_un_auth*0263304
    Rozsah: 16 s. : P
Subject category
    atmospheric dust
    rock magnetism
Abstract (in english)
   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 m (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.
    AV ČR Brno, Geofyzikální ústav
Contributor code
    AV ČR, GFÚ
Source format
Import date
    23. 10. 2014