Trial activities have been also linked to the concentration of Cd [45]. eight of 18 3.3. Danger Assessment for Heavy Metals three.3.1. Pollution Index and Geoaccumulation Index 3.3. Danger Assessment for Heavy Metals The PI have been calculated through Equation (1), 3.3.1. Pollution Index and Geoaccumulation Index as shown in Figure 3a. These heavy metals in Handan city had distinct levels of pollution when compared with the soil background The PI have been calculated via Equation (1), as shown in Figure 3a. These heavy in Hebei. The PI values in the heavy metals in soil have been ranged from 0.14 (Cr) to 25.42 metals in Handan city had distinct levels of pollution in comparison to the soil background in (Cd). It must be noted that the PI value of Cd in 95 of soil samples sites was classified Hebei. The PI values from the heavy metals in soil were ranged from 0.14 (Cr) to 25.42 (Cd). It as class IV, indicating that the contamination of Cd was serious in nearly the complete study need to be noted that the PI value of Cd in 95 of soil samples internet sites was classified as class location. As shown in Figure 3a, the PI worth of Mn in 77 of the sampling points was grouped IV, indicating that the contamination of Cd was serious in nearly the entire study region. As as class inand 23 obeyed class II, indicating no pollution in most sampling web pages. Accordshown I, Figure 3a, the PI worth of Mn in 77 in the sampling points was grouped as class ing to the PI values, Cr,II, indicating andpollution in most sampling sites.II group in towards the I, and 23 obeyed class Cu, Ni, Pb no Zn belonged to the pollution According most sampling sites. PI values, Cr, Cu, Ni, Pb and Zn belonged towards the pollution II group in most sampling web sites.a95 5 14 9 5 16b5 17 55 19 three 1 two 3 23 72 5 9 27 59 two 98 9 24 67 5 42 53 16 45 39PIi Class2121692026Igeo Class345512358565538197724193CdCrCuMnNiPbZnCdCrCuMnNiPbZnFigure three. (a). The class distribution of PI of soil heavy metal, (b). The class distribution of geo of soil heavy metal. Figure 3. (a). The class distribution of PI of soil heavy metal, (b). The class distribution of IIgeo of soil heavy metal.The Igeo classification of heavy metals is shown in Figure 3b. Compared with all the The Igeo classification of heavy metals is shown in Figure 3b. Compared with the polpollution index, the Igeo assessment was divided into seven, far more detailed levels. The mean lution index, the Igeo assessment was divided into seven, much more detailed levels. The mean Igeo in the heavy metals in soil were arranged within the following order: Cd (2.47) Zn (0.31) Igeo in the heavy metals in soil had been arranged within the following order: Cd (two.47) Zn (0.31) Cu (0.01) Ni (-0.16) Pb (-0.25) Cr (-0.48) Mn (-0.65). Except for Cd, the Igeo Cu (0.01) Ni (-0.16) Pb (-0.25) Cr (-0.48) Mn (-0.65). Except for Cd, the Igeo of the in the other six heavy metals ranged from class I to class IV, as well as the I values of most other six heavy metals ranged from classto class IV, as well as the Igeo values geo most sampling of sampling points have been in the range of class I lass II, displaying that heavy metal pollution points have been in the range of class I lass II, displaying that heavy metal pollution in soil was in soil was involving Sulfinpyrazone manufacturer uncontaminated and moderately contaminated situations. The Igeo in between uncontaminated and moderately contaminated conditions. The Igeo values of Cd values of Cd in 95 of soil samples belonged to class IV, which showed that the pollution in 95 of soil samples belonged to class.