Table 6.3 Sediment Quality Criteria for the Classification of Sediment
Contaminants |
Lower Chemical Exceedance Level (LCEL) |
Upper Chemical Exceedance Level (UCEL) |
Metals (mg kg-1 dry weight) |
||
Cadmium (Cd) |
1.5 |
4 |
Chromium (Cr) |
80 |
160 |
Copper (Cu) |
65 |
110 |
Mercury (Hg) |
0.5 |
1 |
Nickel (Ni) |
40 |
40 |
Lead (Pb) |
75 |
110 |
Silver (Ag) |
1 |
2 |
Zinc (Zn) |
200 |
270 |
Metalloid (mg kg-1 dry weight) |
||
Arsenic (As) |
12 |
42 |
Organic – PAHs (µg kg-1 dry weight) |
||
Lower Molecular Weight PAHs |
550 |
3160 |
High Molecular Weight PAHs |
1700 |
9600 |
Organic-non-PAHs (µg kg-1 dry weight) |
||
Total PCBs |
23 |
180 |
Organometallics (µg TBT L-1 in interstitial water) |
||
Tributyltin (TBT) |
0.15 |
0.15 |