Table 3.
Concentrations (mg/kg) of all the sediment samples in each fraction of the BCR sequential extraction.
| Sample | BCR Step | Al | As | Cd | Cu | Cr | Fe | Hg | Ni | Pb | Zn |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Y1 | Step 1 | 61.9 | <0.05 | <0.1 | <0.1 | <0.1 | 9.2 | <0.02 | 0.4 | <0.1 | 4.3 |
| Step 2 | 473 | 0.28 | 0.5 | 0.7 | <0.1 | 2212.5 | <0.02 | 0.9 | 0.4 | 8.7 | |
| Step 3 | 647.2 | <0.05 | <0.1 | <0.1 | 1.4 | 120.6 | <0.02 | 1.3 | <0.1 | 4.6 | |
| Step 4 | 12505.2 | 5 | 1.9 | 9.6 | 4 | 10055.1 | <0.02 | 3.3 | 7.7 | 27.4 | |
|
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| Y2 | Step 1 | 119.7 | 0.4 | 0.2 | 13.6 | <0.1 | 50.6 | <0.02 | 1.8 | 0.5 | 18.6 |
| Step 2 | 1154.7 | 0.6 | 0.7 | 13.4 | <0.1 | 2564.7 | <0.02 | 1.8 | 3.2 | 18.8 | |
| Step 3 | 716.2 | <0.05 | <0.1 | 27.0 | 1.3 | 167.5 | 0.02 | 1.6 | 0.1 | 6.6 | |
| Step 4 | 17387.9 | 1.5 | 3.1 | 79.1 | 5.5 | 11147.2 | 1.02 | 4.2 | 16.2 | 46.6 | |
|
| |||||||||||
| Y3 | Step 1 | 153.1 | 3.29 | 0.3 | 4.6 | <0.1 | 24.3 | <0.02 | 1.6 | <0.1 | 20 |
| Step 2 | 675.9 | 2.29 | 0.7 | 4 | <0.1 | 3136.9 | <0.02 | 1.6 | 0.9 | 18.1 | |
| Step 3 | 381.2 | 0.3 | <0.1 | 21.3 | 0.4 | 407.5 | <0.02 | 2.4 | <0.1 | 7.7 | |
| Step 4 | 11438.8 | 48 | 2.1 | 33.5 | 3.9 | 10909.3 | <0.02 | 2.8 | 8 | 30.2 | |
|
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| Y4 | Step 1 | 910.6 | 0.35 | 0.3 | 159.8 | <0.1 | 26 | <0.02 | 3.1 | <0.1 | 49.6 |
| Step 2 | 2356.1 | 0.3 | 1 | 70.9 | <0.1 | 6014 | <0.02 | 2.2 | 1.6 | 26.8 | |
| Step 3 | 623.6 | <0.05 | <0.1 | 161.4 | 1.5 | 108.5 | <0.02 | 1.6 | <0.1 | 5.9 | |
| Step 4 | 20632.4 | 22 | 2.4 | 109.9 | 4.2 | 11661.9 | <0.02 | 3.6 | 7.9 | 43.8 | |
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| Y5 | Step 1 | 815.3 | 0.3 | 1.5 | 101.2 | 0.2 | 194.5 | <0.02 | 2.55 | 0.2 | 36.8 |
| Step 2 | 1482.3 | 0.35 | 2.1 | 63.7 | 0.1 | 8542.5 | <0.02 | 2.1 | 1.8 | 21.6 | |
| Step 3 | 176 | 0.08 | 0.1 | 26.6 | 0.4 | 75.9 | 0.25 | 2.35 | <0.1 | 2.9 | |
| Step 4 | 12792 | 350 | 7.7 | 254.7 | 5.0 | 16071.5 | 1.01 | 4.6 | 33.1 | 53.5 | |
|
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| R1 | Step 1 | 509.2 | 0.28 | 6.6 | 20.9 | <0.1 | 14.3 | <0.02 | 4.9 | 1.1 | 0.6 |
| Step 2 | 1582.5 | 0.55 | 3.4 | 10.9 | <0.1 | 4345.1 | <0.02 | 2.8 | 4.7 | 118.7 | |
| Step 3 | 935.8 | <0.05 | 0.3 | 106.1 | 1.0 | 191 | 0.07 | 2.3 | <0.1 | 0.5 | |
| Step 4 | 12577.5 | 55.1 | 2.0 | 60.1 | 2.3 | 10809.7 | 0.03 | 2 | 86.8 | 75.2 | |
|
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| R2 | Step 1 | 321.5 | 0.24 | 0.8 | 1.1 | <0.1 | 13.2 | <0.02 | 2.5 | 0.9 | 0.5 |
| Step 2 | 1470.9 | 1.36 | 0.9 | 1.5 | 0.2 | 3362.4 | <0.02 | 1.7 | 7.9 | 23.9 | |
| Step 3 | 307.2 | <0.05 | <0.1 | 9.5 | 1.3 | 46.9 | 0.14 | 1.9 | <0.1 | 0.2 | |
| Step 4 | 11475 | 61.7 | 2.8 | 22.3 | 6.1 | 13387.8 | 0.03 | 5.7 | 45.9 | 79 | |
|
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| R3 | Step 1 | 244.8 | 0.28 | 1.7 | 3.3 | <0.1 | 10.1 | <0.02 | 1.9 | 0.8 | 61.5 |
| Step 2 | 1257.4 | 1 | 1.3 | 3.2 | <0.1 | 3567.8 | <0.02 | 1.3 | 7.1 | 38.3 | |
| Step 3 | 253.3 | <0.05 | 0.2 | 10.7 | 0.8 | 51.4 | 0.10 | 1 | <0.1 | 6.8 | |
| Step 4 | 7846.4 | 47.5 | 2.2 | 25.6 | 4.0 | 11631.7 | <0.02 | 2.8 | 32.6 | 43.3 | |
|
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| R4 | Step 1 | 413.9 | 0.36 | 0.2 | <0.1 | <0.1 | 48.3 | <0.02 | 1.2 | 1.2 | 0.7 |
| Step 2 | 1833.6 | 0.96 | 0.5 | 0.4 | 0.1 | 2293.2 | <0.02 | 0.9 | 5.6 | 38.3 | |
| Step 3 | 465.6 | <0.05 | <0.1 | 2.1 | 2.2 | 70.4 | 0.06 | 0.9 | 0.6 | 0.4 | |
| Step 4 | 11617.3 | 55.5 | 2.4 | 14.1 | 4.4 | 12319.8 | 0.03 | 3.4 | 40.5 | 86.4 | |