Table 11 Comparisons of consensus-based sediment-quality guidelines (SQGs) with detected trace metals levels in the surface sediments of the selected study sites
| Â | Zn | As | Fe | Mn | Ni | Cr | Cu | Cd |
|---|---|---|---|---|---|---|---|---|
SQGs | ||||||||
TEC | 120 | 9.8 | 20,000 | 460 | 23 | 43 | 32 | 0.99 |
MEC | 290 | 21.4 | 30,000 | 780 | 36 | 76.5 | 91 | 3.00 |
PEC | 460 | 33 | 40,000 | 1100 | 49 | 110 | 150 | 5.00 |
% sample sites of detected trace metal less than TEC | 25.00 | 100.00 | 100.00 | 100.00 | 62.50 | 81.25 | 100.00 | 100.00 |
% sample sites of detected trace metal greater than TEC but equal or less than MEC | 75.00 | 0 | 0 | 0 | 37.50 | 18.75 | 0 | 0 |
% sample sites of detected trace metal greater than PEC | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |