Objectives: The purpose of this paper has been to determine quantitatively the presence of some heavy metals (Fe, Cu and Zn) which are of particular importance for the wine quality and human health. A total of 41 samples have been analyzed during different stages of winemaking. Methods: The determination of heavy metals is done by analytical technique known as Flame Atomic Absorption Spectroscopy (FAAS). The limit set by the EU directive EC 606/2009 and International Office of Vine and Wine (OIV) has been taken as reference values. Results and Discussion: None of the analyzed samples has exceeded the limits set by the EU and OIV, excluding the type of white wine known as Rhine Riesling. In this sample the Cu concentration exceeds several times the permissible values. Findings: It has been observed that heavy metals immediately after the alcoholic fermentation process probably continue to remain even for a while in the upper part until wine sediment forms at the bottom of the tank. A higher concentration of heavy metals was observed in the samples taken from the bottom of the wine tank. Conclusion: The analyzed wines samples do not pose a risk in the future to human health. Doi: 10.28991/esj-2020-01240 Full Text: PDF
The objective of this research was assessment of environmental toxic elements downstream the river of Morava e Binces (Kosovo) and this study is a continuation of earlier studies of surface waters in our country. The sampling and analysis are conducted in accordance with EU and WHO standards. This study uses both quantitative and qualitative analysis to assess the water quality in several points along river. The concentration of major and minor elements was determined by Inductively Coupled Plasma Mass Spectroscopy (ICP-MS). The concentration of toxic elements which we received from surface waters are compared with the results received for the source where anthropogenic effects aren't present (the part of river in the source). The study firstly shows that Morava e Binces River is considerably polluted. Results obtained by the box plot method showed the regions with determined anomalous element concentration values in water River of Morava e Binces. This study strongly recommends the immediate correction of these issues to protect the health of population from water borne diseases.
Atomic absorption spectroscopy has been used to analyses and assesses the heavy metal content in water of the Llapi river, Kosovo. In this study, the assessment of heavy metals in water was realized in the summer period. Statistical studies have been carried out by calculating basic statistical parameters, anomalies (extremes and outliers) and correlation coefficients between different pairs of variables. The concentration of Cr, Ni, Zn, Cu and Fe in all sample stations were found to be under WHO recommended norms. But the concentration of Cd and Pb in all sample stations and concentrations of Mn at several stations were found to be above WHO recommended norms originated from mineral sources (ores) in this area. The statistical regression analysis has been found a highly significant positive relationship of Cd with Ni, Mn, Fe and Pb originated mainly of sulphide ores in this area.
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