Author/Editor		Milačič, R; Dolinšek, F
Title		Determination of cadmium and lead in aerosols in the Zasavje region in Slovenia employing slurry electrothermal atomic absortption spectrometry
Type		članek
Source		Int J Environ Anal Chem
Vol. and No.		Letnik 57
Publication year		1994
Volume		str. 329-37
Language		eng
Abstract		Investigations of air pollution were carried out in the Zasavje urban industrialized region in Slovenia. Cadmium and lead were measured in respirable (less th. 2.5 micrometer) and inhalable (2.5-10 micrometer) aerosols. Special pumps were equpped with Nucleopore-Costar polycarbonate membrane filters. Cadmium and lead were measured in those filters by slurry electrothermal atomic absorption spectrometry (ETAAS) on a laboratory assembled atomic absorption spectrometer with a graphite cup atomizer. A reliability of the employed technique was proved by analysis of the same filters with classical dissolution of aerosol particles in diluted nitric acid and measurement of cadmium and lead by flame atomic absorption spectrometry (FAAS). Good agreement (+- 5-10 percent) of the results was obtained between the two techniques for both elements. The study indicated that cadmium and lead in a contaminated area prevailed in the respirable (less th. 2.5 micrometer) aerosols. The employed technique was sensitive enough for measurment of cadmium and lead also in non-polluted areas.
Descriptors		AIR POLLUTANTS CADMIUM LEAD SLOVENIA AEROSOLS SPECTROPHOTOMETRY, ATOMIC ABSORPTION