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Monitoring the quality of the marine environment
C Palma1, M Valença, P Pestana da Silva
1Ministério da Defesa Nacional, Marinha-Instituto Hidrográfico, Portugal.
Journal of Environmental Monitoring : JEM
|March 20, 2001
Abstract:
As part of the monitoring program from Instituto Hidrográfico, since 1981 sediment and water samples have been collected from four different estuarine areas located along the continental coast of Portugal. The concentrations of different parameters were measured in the water and sediment samples. After normalization, the concentrations of chromium, mercury, lead and zinc in the sediments from the different areas were compared.