|
|||||
|
|
Magnetic particles in atmospheric particulate matter collected at sites with different level of air pollution |
|
| Authors: | Eduard Petrovský Radek Zbořil Tomáš Matys Grygar Bohumil Kotlík Jiří Novák Aleš Kapička Hana Grison |
| Institution: | 1. Institute of Geophysics AS CR v.v.i., Bo?ní II/1401, 141 31, Praha 4, Czech Republic 2. Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Palacky University, ?lechtitel? 11, 783 71, Olomouc, Czech Republic 3. Institute of Inorganic Chemistry AS CR v.v.i., 250 68, ?e?, Czech Republic 4. National Institute of Public Health, ?robárova 48, 100 42, Praha 10, Czech Republic 5. Czech Hydrometeorological Institute, Na ?abatce 17, 143 06, Praha 4, Czech Republic |
| Abstract: | 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. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |