In this study, the variation in chromium (Cr) and cadmium (Cd) concentrations in peppers, tomatoes, corn, eggplants, and cucumbers grown adjacent to the industrial area in Düzce, one of Europe’s most polluted cities and known for its high levels of potential toxic element (PTE) pollution, was determined based on species and organ. In addition, the concentrations of these elements in the soil were determined, and the translocation factor (TF) and bioconcentration factor (BCF) in the plant organs were calculated. The study found that Cr pollution, in particular, was well above threshold values in the region and accumulated to high concentrations in all plant organs, including fruits. The study found that soil Cr concentrations were well above the limit values set by international organizations. Cd concentrations in fruits ranged from 0.22 mg/kg to 0.33 mg/kg. Based on these results, Cd concentrations in all species exceed the limit values set by international standards by more than twice. The Cr concentration determined in fruits in the study ranged from 178.47 mg/kg to 579.80 mg/kg. According to these values, the Cr concentration determined in fruits is hundreds of times higher than the limit value in all species. TF values were high for Cd in tomato fruits and Cr in pepper and cucumber fruits. In contrast, TF values for both Cd and Cr were very low in corn fruits. Based on these results, cultivating crops such as tomatoes, cucumbers, and peppers should be avoided in the region, and corn should be emphasized. Thus, the rate of Cr and Cd entering the human body through the food chain can be reduced.
Sevik et al. (Tue,) studied this question.
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