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Trace metals in cod from the southern Baltic, 1983
Zeitschrift Fur Lebensmittel-Untersuchung Und -Forschung
|March 1, 1986
Summary
This study measured heavy metal concentrations in Baltic Sea cod muscle tissue in 1983. Cadmium, lead, copper, zinc, iron, manganese, and nickel levels were quantified to assess fish health and environmental contamination.
Area of Science:
- Environmental Science
- Marine Biology
- Analytical Chemistry
Background:
- The Baltic Sea faces environmental pressures, including heavy metal pollution.
- Cod (Gadus morhua) are a key species in Baltic marine ecosystems.
- Monitoring heavy metal accumulation in fish is crucial for assessing ecosystem health.
Purpose of the Study:
- To determine the concentrations of seven heavy metals in cod muscle tissue.
- To provide baseline data for heavy metal levels in cod from the southern Baltic Sea in 1983.
- To compare current findings with historical data for cod in the region.
Main Methods:
- Atomic absorption spectrophotometry was used for precise metal quantification.
- Muscle tissue samples were collected from 201 cod specimens.
- Metal concentrations were reported in milligrams per kilogram (mg/kg) of wet weight.
Main Results:
- Mean concentrations (mg/kg wet weight) were: Cadmium (Cd) 0.005, Lead (Pb) 0.086, Copper (Cu) 0.15, Zinc (Zn) 3.9, Iron (Fe) 3.7, Manganese (Mn) 0.21, and Nickel (Ni) 0.081.
- Data provides specific values for each analyzed metal in cod muscle.
- Results were compared to previously published data for Baltic Sea cod.
Conclusions:
- The study established heavy metal levels in cod from the southern Baltic Sea in 1983.
- The findings contribute to understanding metal bioaccumulation in this fish species.
- This data serves as a reference for future environmental monitoring and risk assessment.