Sites Cd Fe Ni Cu Zn Mn Cr Pb Al S1 4 1500 224 - 80 177 71 15.8 1345.33 S2 67 2400 60 47 367 30 183 6.22 9953.23 S3 49 2940 57 170 300 35 277 13.7 3848.72

Table 7: Metals concentrations in dust in (ppm).