The Geomorphology and Sediments of Cockburn Sound

The Geomorphology and Sediments of Cockburn Sound
Table 5: Sediment contaminant levels at Cockburn Sound sample sites. Comparisons are made with
background, anomalous and the Interim Sediment Quality Guidelines low and high reference values.
As
ICP-MS
Cd
ICP-MS
Cr
XRF
Cu
XRF
Ni
XRF
Pb
ICP-MS
Zn
XRF
CONTAMINANT
ppm # ppm ppm ppm ppm ppm ppm
Background
values* 0.5 45 14 4.8 37 27
Anomalous
values* 0.7 50 16.5 5.5 30
ISQG-Low
(Trigger Value)** 20 1.5 80 65 21 50 200
ISQG-High** 70 10 370 270 52 220 410
Sample ID
CSG13 3.6 0.55 39 16 49 19.8 60
CSG16 2.5 0.23 30 43 9 11.8 28
CSG18 0.7 0.52 37 20 14 14.8 46
CSG20 0.4 0.32 34 20 6 12.8 34
CSG23 0.4 0.15 39 97 15 14.4 29
CSG25 0.4 0.12 32 34 14 12 29
CSG27 6.8 0.12 32 149 56 20.7 37
CSG29 3.7 0.15 43 28 6 18.2 31
CSG31 1.1 0.14 29 36 5 14.4 27
CSG33 2.6 0.18 40 44 10 18.7 38
CSG34 1.1 0.18 40 11 17 16.8 32
CSG36 0.4 0.05 31 36 23 13.8 27
CSG38 0.4 0.15 34 24 2 12.5 26
CSG39 0.4 0.13 33 8 4 9.6 19
CSG41 0.8 0.18 36 20 1.3 10.4 18
CSG43 2.2 0.05 28 17 1.3 12.1 26
CSG45 0.4 0.11 36 24 12 12.7 32
CSG48 0.4 0.11 32 42 7 13 33
CSG51 2 0.05 25 11 7 11.5 23
CSG53 1.9 0.11 25 9 1.3 10.5 21
CSG55 1.8 0.13 22 73 11 14.5 39
CSG57 1.9 0.11 22 7 1.3 11.7 24
CSG59 0.4 0.15 28 12 5 9.2 17
CSG62 0.4 0.11 23 21 9 8.3 17
CSG64 0.4 0.05 29 15 3 9.1 14
CSG65 0.4 0.24 26 13 12 10.6 27
CSG68 1.6 0.05 14 9 1.3 8.8 17
CSG71 3.9 0.05 31 17 2 15 34
CSG73 2.8 0.05 32 11 5 17.2 40
CSG74 2.5 0.05 27 44 8 17.5 32
* - Values from Talbot and Chegwidden 1983
** - Recommended sediment quality guidelines from ANZECC (2000)
# - ppm - parts per million = mg/kg dry weight
25