Multivariate analysis of element data from needles of Pinus sylvestris L. and Picea abies (L.) Karst. samples used to monitor atmospheric deposition in area of aluminium plant
1997
Mankovska, B. (Forest Research Inst., Zvolen (Slovakia)) | Steinnes, E.
Concentration of 25 selected elements in 2 year old needles of Picea abies (L.) Karst. and Pinus sylvestris L. from 141 permanent monitoring plots (network of 4 x 4 km) from the industrial region of Ziar nad Hronom (Slovakia) was assessed in relation to boundary values. 81.4 percent of the total variance was explained by principal component analysis of 8 components. The highest concentrations of Al, Be, Cd, Co, Cr, F, Fe, Hg, Li, Ni, Pb, Sr and V were found in the A pollution zone and are apparently connected with production of aluminium. In zone B there were increased levels of As, Ba, K, Mn, N, Na, Rb, S and Se which may be connected with the operation of a thermal power plant. The highest values of Cu and Zn were found in zone C and of Ca and Mg in zone D. Correlation analysis of 25 elements from spruce and pine needles from the Ziar region was executed provided that the number of high-correlation pairs (r is greater than or equal to 0.9) leads to an expectation of mutual element reaction. Only highly positively correlative pairs of elements, which are emitted in zone A in the region of aluminium plants were found. In zone B, neither a positive nor negative correlated relation was found among pairs of elements with r higher or equal to positive or negative 0.9. In zone C only a high-positively correlated pair between Be/Co was found
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