C. Matthai et G. Birch, Detection of anthropogenic Cu, Pb and Zn in continental shelf sediments off Sydney, Australia - A new approach using normalization with cobalt, MAR POLL B, 42(11), 2001, pp. 1055-1063
Concentrations of Co, Cu, Ph and Zn were determined in 107 surficial. sedim
ent samples from the continental margin adjacent to Sydney, Australia. The
spatial distributions of trace metals in the sediments and the mud content
are similar and increase with greater distance from the coast. In contrast,
normalization of the concentrations of Cu, Ph and Zn in the total sediment
with Co enables a coastal anthropogenic source to be identified. The spati
al distribution of Co-normalized concentrations of Cu, Ph and Zn in total s
ediment is similar to the distribution of these trace metals in the fine fr
action of sediment (<62.5 <mu>m), indicating that Co may be used as a norma
lizing element for determining contaminant sources in the marine environmen
t near Sydney. (C) 2001 Elsevier Science Ltd. All rights reserved.