A limited survey was undertaken to determine the concentrations of copper, lead, and chromium in sediments of the upper Manukau Harbour, New Zealand. The concentrations of copper and chromium (33–70 and 70–107 μg g ‐1 respectively) were of the same order of magnitude as those reported for other New Zealand harbours. However, lead concentrations (98–247 μg g ‐1 ) were higher than those found for the other harbours. This may be a consequence of higher traffic densities in the surrounding area.
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Aggett et al. (1986) studied this question.
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