Metal pollution index - contribution to freshwater monitoring
2001
Teodorovic, I.
Target organ and tissue distribution pattern analysis, bioaccumulation and biomagnification studies undertaken on wide range of species belonging to various trophic levels within fish community indicated liver of Carassius auratus gibelio as a reliable environmental indicator of freshwater metal pollution. Large scale studies on different ecosystems within the lower Danube river basin pointed out the possible referent metal concentrations in Prussian carp muscle and liver. Some of them have been applied in modified classifications based on fish muscle metal content. Comparing the results of the similar investigations undertaken in recent past, a certain declining trend concerning metal pollution could be noticed. It should be underlined that Pb and Cd concentration in fish muscle do not exceed Yugoslav alimentary standards for edible fish tissue. Referent values have been used as normalizers in Metal Pollution Index (MPI) - mathematical model which presents all measured metal concentrations as a single value. The introduction of MPI could standardize and simplify freshwater metal pollution monitoring procedure. The new classification, base on MPI, has been applied on the lower part of the Danube river basin (Serbia, Yugoslavia) and the river Vardar (The Former Yugoslav Republic of Macedonia).
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