Nutrient elements and heavy metals in the sediment of Baiyangdian and Taihu Lakes: A comparative analysis of pollution trends

2007 ◽  
Vol 1 (2) ◽  
pp. 203-209 ◽  
Author(s):  
Zhuo Yang ◽  
Bowen Li ◽  
Guibao Li ◽  
Wei Wang
Keyword(s):  
Heavy Metals ◽  
Comparative Analysis ◽  
Nutrient Elements

CONTENT OF HEAVY METALS IN FISH FROM MINERALIZED URAL WATER BODIES

2019 ◽  
Vol 1 (4) ◽  
pp. 461-467
Author(s):  
Yu.G. Gribovsky ◽  
◽  
D.Yu. Nohrin ◽  
N.A. Davydova ◽  
A.N. Torchitsky ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Comparative Analysis ◽  
Muscle Tissue ◽  
Spectrophotometric Method ◽  
Southern Urals ◽  
Normal Functioning ◽  
The Southern Urals ◽  
Fish Products ◽  
Iron And Zinc ◽  
Chelyabinsk Region

The article presents the results of comparative analysis of contamination with heavy metals of fish within the framework of comprehensive, expanded ecotoxicological monitoring of freshwater and mineralized lake farms of the Southern Urals with varying degrees of anthropogenic load. At this stage, 3 reservoirs with varying degrees of salinity were studied: Mayan, Kurakli-Mayan and Sugoyak. Atomic absorption spectrophotometric method determined the content of 8 heavy metals in the bone and muscle tissue of various fish species. It was found that in muscle tissue, maximum concentrations were noted for iron and zinc, which are necessary for normal functioning of fish. Manganese and cobalt were the most variable in the composition of muscle tissue. It is shown that detected concentrations of heavy metals are within the previously established values for the reservoirs of Chelyabinsk region. The number of studied normalized elements (Pb, Cd) did not exceed the established maximum values for fish and fish products. Increased water salinity in the studied lakes is not an obstacle to their use in fisheries purposes.

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