Inductively Coupled Plasma Atomic Emission Spectrometry - Air Quality Monitoring
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Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences,1113 Sofia, Bulgaria
Institute of Physical Chemistry “Rostislav Kaischew”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
Institute of Atmospheric Physics, Academy of Sciences of the Czech Republic, 14131 Prague 4, Czech Republic
Online publication date: 2007-10-01
Publication date: 2007-10-01
Eurasian J Anal Chem 2008;3(1):134–150
The concentration levels of heavy and toxic elements circulating in the environment increase due to various industrial activities. Now it is well understood that the environmental particles influence directly the cloud properties and atmosphere visibility, and indirectly change the global climate. Particles with aerodynamic diameter larger than approx. 10 μm were collected by Bergerhoff’s method around metallurgical works “Kremicovtzi” in Sofia, Bulgaria. Samples of atmospheric particles smaller than approx. 10 μm were collected by filter technique from the meteorological stations Milesovka and Kopisty, located in a highly polluted industrial region of the Czech Republic. Inductively coupled plasma atomic emission spectrometry (ICP-AES) was applied in this study for quantitative determination of traces of elements after sample extraction with aqua regia according to ISO 11466:1995. The accuracy is ensured by the following ICP–AES methodology: (a) quantification of spectral interferences in the presence of Al, Ca, Mg, Fe and Ti as a complex environmental matrix around the prominent lines of the analytes, and (b) line selection for trace analysis. The content of some pollutants (As, Ba, Cu, Mn, Pb, Zn, Al, Ca, Mg, Fe and Ti) was compared to the corresponding threshold concentration levels and to the results from the chemical analysis of hundreds of individual particles by using Electron Probe X–ray Micro-Analyses (EPXMA).
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