Abstract

Sediments of the River Liffey Estuary have been analysed for organic carbon, Kjeldahl nitrogen, humic acid and crude fibre contents. Several trace metals were also analysed. The hydrographic conditions which control the transport of this material were also studied over a tidal cycle. Results indicate that the upper reaches of the estuary are isolated from the incoming seawater and that trace metal enrichment is localized. This metal enrichment is accompanied by an increase in the organic carbon, nitrogen, and humic acid levels.

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