Zs. P. Komáromy szerk.: Studia Botanica Hungarica 16. 1982 (Budapest, 1982)

Hably, Lilla: The relation between Pb-pollution along mainroads and the trace element-composition in soil and vegetation (Examination of section rectangular to M3 mainroad)

organic clay Sample Mn Zn Cu Pb pH material mineral CaCOg Mn -0.17 0. 38 0. 88 -0. 70 0. 78 0.16 34. Zn -0. 17 0. 73 0. 04 -0. 50 0. 45 -0.72 34. Cu 0. 38 0.73 0. 66 -0. 87 0. 80 -0.58 Pb 0. 88 0.04 0. 66 -0. 87 0. 79 -0.47 Mn 0.41 0. 90 0, 80 -0. 82 0. 66 -0.59 -0, 79 36. Zn 0. 41 0. 59 0. 83 -o. 72 0. 78 -0.22 -0, .24 36. Cu 0. 90 0.59 0. 83 -0. 94 0. 86 -0.58 -0. 69 Pb 0. 80 0.83 0. 83 -0. 88 0. 85 -0.36 -0. ,61 Mn 0.60 -0. 04 0, .65 0. 96 0. 54 -0.98 37. Zn 0. 60 0. 77 1, .00 0. 80 1. 00 -0.73 37. Cu -0. 04 0.77 0, .73 0. 23 0. 81 -0.12 Pb 0. 65 1.00 0. 73 0. 84 0. 99 -0.78 Mn _ 0. ,76 0, 84 0.94 -0.48 0.71 -0.63 -0.71 38. Zn 0.76 0, ,84 0.78 -0.87 0.92 -0.49 -0.59 38. Cu 0.84 0. ,84 0.86 -0.94 0.88 -0.67 -0.76 Pb 0.94 0, 78 0, .86 -0.71 0.72 -0.57 -0.51 3.1. Correlation between the certain trace-elements To calculate the correlation between the trace elements the data calculated for /ig/g has been used directly without standardization. Correlation has been calculated in each soil-section separately between the elements. The correlation values are shown in Table 2. The correlation between the elements in certain cases is remarkably good as for instance with Mn-Pb. In case of Mn-Zn no correlation can be demonstrated. With Mn-Cu there is strong correlation in some sections, in other cases there is no correlation at all. With Zn-Cu, Zn-Pb the correlation is good, in other cases there is no correlation. Cu-Pb generally show strong connection. To detect the causes of differences in certain element pairs in the sections, I used the following calculations and ideas. To establish the connections, it is apparently not sufficient to take two factors into consideration. As a first step I tried to find out the connection between the changes in elementpairs. The connections of the pair correlation of each element pairs shown in Table 3. Grouping these and marking the mutual elements of element pairs the existing correlations are indicated (Table 4.). Viewing this latter table the following statement can be made: If one member of each element pair is a. Zinc (Zn), there is a correlation between the two element pairs indepeadeatly from the two other elements in the pair being Mn, Cu; Mn, Pb; or Cu, Pb i.e. any of the elements examined. b. Copper (Cu), correlation exists between the two element pairs if the other element in the pair is Mn, Pb. No correlation can be demonstrated if the two other elements are Zn, Mn; or Zn, Pb; i.e. if one of the elements is Zn. c. Manganese (Mn), there is correlation between the two element pairs if the two other elements in them are Cu and Pb. There is no correlation if Zn, Cu or Zn, Pb; i.e. if one of the elements is Zn. d. Lead (Pb), correlation exists if the two other elements in the pair are Mn and Cu. There is no correlation if Zn, Cu and Zn, Mn respectively are the additional elements of the elementpair. e. There is no correlation in the absence of mutual elements in two pairs. From the above it is to be seen that the differences in the correlation are caused mainly by zinc. An explanation of this is given in chapter titled Conclusion.