Heavy Metal Pollution of Santa Catarina Island, Brazil

by R. R. U. Queir?z, Univ of Santa Catarina, Brazil,
E. Stadler, Univ of Santa Catarina, Brazil,
B. S. Ledo, Univ of Santa Catarina, Brazil,
E. J. Soriano Sierra, Univ of Santa Catarina, Brazil,
P. Haas, Univ of Santa Catarina, Brazil,



Document Type: Proceeding Paper

Part of: Coastal Zone '93

Abstract:

On Santa Catarina Island, Brazil, mangrove ecosystems although considered by present legislation as 'Areas of Permanent Preservation', have been undergoing progressive elimination for the past 60 years. The most severely affected is the Itacorubi mangrove, which has been subjected to strong antropic impacts. Samples of sediments and water in this mangrove have been collected and analyzed, using X-ray fluorescence and spectroscopy to determine the toxic trace elements. The major components observed are: Si(SiO₂), Fe, Ni and Cd. Quantitative distribution and transfer have also been analyzed and described here. Finally, the environmental quality for the development of aquatic components has also been determined.

Subject Headings: Islands | Developing countries | X rays | Water pollution | Sediment | Heavy metals | Ecosystems | Brazil | South America

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