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Distribution of Hg, Cu, Zn, Cd and Pb in surface sediments from the coastal region of the central Adriatic (CROSBI ID 472139)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa

Zvonarić, Tomislav ; Odžak, Nikša Distribution of Hg, Cu, Zn, Cd and Pb in surface sediments from the coastal region of the central Adriatic // Water pollution / Brebbia, C.A. ; Anagnostopoulos, P. (ur.). Southampton: Wit Press, 1999. str. 455-463-x

Podaci o odgovornosti

Zvonarić, Tomislav ; Odžak, Nikša

engleski

Distribution of Hg, Cu, Zn, Cd and Pb in surface sediments from the coastal region of the central Adriatic

Determinastion of Hg, Cu, Zn and Cd mass fractions in surface sediment where the state of pollution, both past and present, of an ecosystem are recorded, started in 1983 at six main stations in the study area. Recently Pb, As, Mn and Sb have been included in analysis. The results of analysis and statistical calculations for 1983-1995 show that the highest mass fractions of almost all studied heavy metals are found in the naturally enclosed areas with marginal biodegradation abilities (Kaštela, Šibenik, Gruž Bays). Even trough these bays are still receiving uncontrolled quantities of different pollutants, it is still encouraging that the concentrations of some elements (as, Mn and Sb) showed a slightly decreasing tendency during the test period. Also, owing to the fact that the bays are semienclosed, pollution by these metals have not yet reached the open sea. Knowing that the majority of the heavy metals in the sediment can easily be remobilized from the latent state into the surrounding seawater and join the food web, multiplying the toxic effects on living organisms, it must be stressed that the situation is very serious. This is especially important in areas (Kaštela, Gruž, Šibenik Bays) where some heavy metals have already accumulated in edible organisms (mussels, fish) in concentrations higher than the WHO recommended for human consumption. On this basis, it is necessary on the one hand to undertake radical measures to hinder further settling of heavy metals from the land-based sources of coastal pollution, and on the other to implement adequate systems for the treatment of effluents discharged in these aquatic areas.

Hg; Cu; Zn; Cd; Pb; surface sediments; coastal region

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Podaci o prilogu

455-463-x.

1999.

objavljeno

Podaci o matičnoj publikaciji

Water pollution

Brebbia, C.A. ; Anagnostopoulos, P.

Southampton: Wit Press

Podaci o skupu

5th International Conference on Water Pollution : Modelling, Measuring and Prediction

poster

01.01.1999-01.01.1999

Lemnos, Grčka

Povezanost rada

Biologija