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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 18:24 |
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Conference: Bucharest University Faculty of Physics 2002 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
R-Mode Factor Analysis Applied to the Exploration of Air Pollution in South of Romania
Authors:
C. D. Oprea*, Al. Mihul
Affiliation:
Dept. of Nuclear Physics, Faculty of Physics, Bucharest University, Bucharest, Romania
E-mail
Keywords:
Abstract:
Atmospheric deposition of heavy metals and other trace elements in the South of Romania was monitored by the moss biomonitoring technique. The goal of this study was to characterize the regional deposition pattern of polluting elements related to main pollution sources and to allow comparisons with similar studies done in Europe.
A total of 52 moss samples were analyzed for heavy metals (Al, Sc, V, Cr, Mn, Fe, Co, Ni, Zn, As, Sr, Mo, Cd, W), halogens (Cl, Br, I), rare earth elements (La, Ce, Sm, Eu, Tb, Yb), Se, Sb, U and Th by epithermal neutron activation analysis. Lichen IAEA-336 was used as reference material to ensure the quality of the results. R-mode factor analysis was used to describe the relationship among 28 geochemical data in mosses. The mosses were classified into five groups according to the extracted factors. These factors are interpreted as crustal, ferrous industry, sea salt, general pollution and vegetation signals, respectively. The moss monitoring programme showed up the highly industrialized and urban locations such as Ploiesti, Valea Prahovei, Motru-Rovinari, Petrosani and Buzau. A moss interspecies comparison is discussed.
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