The cadmium intake of selected legumes in model conditions

The work is to evaluate the extent of risk transfer of heavy metals from soil burdensome to their different levels of consumption of selected parts of the crop. The goal to be achieved in conditions of simulated vegetation pot experiments. To implement the experiment, we used the agricultural soil of land site Výčapy - Opatovce. The experiments use two types of leguminous plants: Faba beans (Faba vulgaris M.), a variety MERLIN lentil dishes (Lens esculentum) variety NELKA. In one experimental tank was weighed 5 kg of soil mixed with 1 kg of silica sand, and the bottom of the container we put a small drainage layer of gravel. Within each container, we applied the calculated dose of the basic fertilizer, as well as various amounts of soluble salts of cadmium observed. Crops are harvested when fully ripe and the  wet mineralization of plant samples was determined by heavy metals AAS method for device VARIAN 240FS. Significant ratio of cadmium is in the aboveground biomass of the legumes. Lentils take into aboveground biomass much more cadmium than  faba beans. The cadmium content in the first two variants is significantly lower than in the next two in both crops. We may conclude that the faba beans, and lentils to accumulate an increased amount of cadmium in soil in a relatively large amount of seeds. Although it is clear that Faba bean received cadmium content was compared with more lentils. Due to the significant accumulation of Cd by plants lentils and excessive production of the aboveground biomass is potentially usable lens as fytoremediation crop recovery for metalic polluted soils

Determination of heavy metals concentration in raw sheep milk from mercury polluted area

The paper focuses on determining the content of monitored contaminants (Cd, Cu, Hg, Pb and Zn) in 53 samples of raw sheep milk collected in 2013 and 2014 on the sites Poráč and Matejovce nad Hornádom (middle Spiš). The area is characterized by historical mining and metalworking activity (mining and processing of polymetallic ores rich in Hg, Cd and Pb). Currently, the area is one of the most mercury contaminated areas in Central Europe. All statistical analyses were carried out using the statistical software Statistica 10.0 (Statsoft, USA). Descriptive data analysis included minimum value, maximum value, arithmetic mean and standard deviation. The results of the studied contaminant content show that the limit value for cadmium (10 μg.kg-1) was exceeded in 25 samples. In the case of lead, the limit value of 20 μg.kg-1 was exceeded in 16 cases. The limit value for copper (0.4 mg.kg-1) was exceeded in one case. The limit value for zinc is not defined by a legislative standard. The risk level of the studied contaminants in the samples of raw sheep milk decreases as follows: Cd > Pb > Hg > Cu > Zn. It can be concluded that frequent and long-term consumption of the raw sheep milk originating from the studied sites poses a health risk. The content of the contaminants in the milk and their eventual transition into dairy products should be monitored over a longer term in more detail