94
Factor 4 (As, Cd) The spatial distribution map of the factor scores of factor F4
(Fig. 3.11) shows that these elements are present in higher contents in the mountainous areas of the study area, such as mountain Baba (with dominant Paleozoic schists
and granites) on the west and Selečka Mountain on the west (with dominant
Proterozoic gneisses and granites). From the list of the elements, it could be expected
that some of the elements associated in Factor 3 have higher content in the area
close to REK Bitola and in the area between REK Bitola and the city of Bitola. It is
visible from the maps of spatial distribution of all elements included in Factor 1
which are presented in Fig. 3.12. This particularly applies to the spatial distribution
of copper (Fig. 3.12) which is present in higher content in fly ash than in the surrounding soil.
3.5 Conclusion
From the results of the air pollution study in the Bitola region by moss biomonitoring, it could be concluded that the analysed elements are associated into four associations of elements: Factor 1 (Fe, Al, V, Ni, Li, Cr, Co, Ba, Pb, Sr and Mn), Factor
2 (Cu, Mo, Ag and Zn), Factor 3 (K, P, Na, Mg and Cu) and Factor 4 (As, Cd). The
elements included in the first association are present in varying concentrations
Fig. 3.7 Spatial
distribution of Factor 2
scores (Cu, Mo, Ag and
Zn)
T. Stafilov et al.
Factor 4 (As, Cd) The spatial distribution map of the factor scores of factor F4
(Fig. 3.11) shows that these elements are present in higher contents in the mountainous areas of the study area, such as mountain Baba (with dominant Paleozoic schists
and granites) on the west and Selečka Mountain on the west (with dominant
Proterozoic gneisses and granites). From the list of the elements, it could be expected
that some of the elements associated in Factor 3 have higher content in the area
close to REK Bitola and in the area between REK Bitola and the city of Bitola. It is
visible from the maps of spatial distribution of all elements included in Factor 1
which are presented in Fig. 3.12. This particularly applies to the spatial distribution
of copper (Fig. 3.12) which is present in higher content in fly ash than in the surrounding soil.
3.5 Conclusion
From the results of the air pollution study in the Bitola region by moss biomonitoring, it could be concluded that the analysed elements are associated into four associations of elements: Factor 1 (Fe, Al, V, Ni, Li, Cr, Co, Ba, Pb, Sr and Mn), Factor
2 (Cu, Mo, Ag and Zn), Factor 3 (K, P, Na, Mg and Cu) and Factor 4 (As, Cd). The
elements included in the first association are present in varying concentrations
Fig. 3.7 Spatial
distribution of Factor 2
scores (Cu, Mo, Ag and
Zn)
T. Stafilov et al.