Research Article
Characteristics of Heavy Metals and Pb Isotopic Composition in Sediments Collected from the Tributaries in Three Gorges Reservoir, China
Table 5
The Geoaccumulation Index and classification of heavy metals in sediments from TGR tributaries.
| | Sampling site | value/classification | | | Cr | Cu | Zn | Ni | As | Pb | Cd | Hg |
| | S1 | −0.29/0 | 0.25/1 | −0.14/0 | 0.08/1 | −0.31/0 | −0.13/0 | 1.70/2 | 0.39/1 | | S2 | −0.47/0 | −0.23/0 | 1.10/2 | −0.04/0 | −0.87/0 | −0.40/0 | 4.12/5 | 0.92/1 | | S3 | −0.17/0 | 0.36/1 | −0.17/0 | 0.13/1 | −0.05/0 | −0.13/0 | 1.77/2 | −0.08/0 | | S4 | −0.37/0 | −0.34/0 | −0.69/0 | −0.12/0 | −0.57/0 | −0.88/0 | 1.16/2 | −0.68/0 | | S5 | 0.11/1 | 1.41/2 | 0.45/1 | 0.34/1 | −0.07/0 | 0.81/1 | 2.64/3 | 0.59/1 | | S6 | −0.26/0 | −0.26/0 | −0.38/0 | −0.06/0 | −0.88/0 | −0.76/0 | 1.29/2 | −0.50/0 | | S7 | 0.13/1 | 1.49/2 | 0.51/1 | 0.50/1 | −0.01/0 | 0.84/1 | 2.73/3 | 1.17/2 | | S8 | −0.11/0 | 0.64/1 | −0.04/0 | 0.11/1 | −0.53/0 | 0.08/1 | 2.28/3 | 0.30/1 | | S9 | −0.24/0 | −0.05/0 | −0.37/0 | −0.06/0 | −0.80/0 | −0.67/0 | 1.22/2 | 0.004/1 | | S10 | 0.06/1 | 1.26/2 | 0.46/1 | 0.37/1 | −0.06/0 | 0.77/1 | 2.66/3 | 1.56/2 | | S11 | −0.47/0 | −0.39/0 | −0.73/0 | −0.44/0 | −0.75/0 | −0.63/0 | 1.22/2 | −0.51/0 | | S12 | −0.45/0 | −0.44/0 | −0.68/0 | −0.44/0 | −0.86/0 | −0.68/0 | 1.25/2 | −0.04/0 | | S13 | −0.22/0 | 0.08/1 | −0.09/0 | −0.11/0 | −0.66/0 | −0.37/0 | 1.83/2 | 0.36/1 | | Average | −0.21/0 | 0.29/1 | −0.06/0 | 0.02/1 | −0.49/0 | −0.17/0 | 1.99/2 | 0.27/1 |
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