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Assessment of Heavy Metal Content in Soil and Lycopersicon esculentum (Tomato) and Their Health Implications

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Abstract 

In this study, the content of lead (Pb), cadmium (Cd), chromium (Cr) and manganese (Mn) was evaluated in soils and tomatoes (Lycopersicon esculentum) collected from rural areas of Dobrogea province, South-East of Romania. The risk to human health due to the heavy metal exposure via tomato consumption was also assessed.

The results suggest that based on the contamination factor, the soils are moderately contaminated with Cd and Mn (Cf values of 1.266. and 1.40) and poorly contaminated with Pb and Cr. The bioconcentration factor (BAF) was below 1 and indicated that the studied species of Lycopersicon esculentum did not accumulate the monitored elements. Person’s correlation analysis showed that there were significant relations between soil pH and BCF values of Cd, Pb, Cr and Mn in analysed tomatoes. The estimated daily intake of each metal was below the oral reference dose. The hazard quotient (HQ) and hazard index (HI) were below the acceptable level (< 1), and the cancer risk (CR) for Pb, Cd and Cr was found within acceptable levels (1.0 × 10−6–1.0 × 10−4). Based on health guidance values, it may be concluded that the analysed tomatoes do not present health risks to consumers in terms of content and accumulation of heavy metals. It is important to monitor the other toxic metals as well, in order to evaluate the heavy metal accumulation variation and the toxicity value of each metal in agricultural soils from both rural and industrial areas.

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  1. Department of Chemistry and Chemical Engineering, Ovidius University of Constanta, 124, Mamaia Avenue, 900527 9, Constanta, Romania

    Semaghiul Birghila, Nicoleta Matei, Simona Dobrinas, Viorica Popescu, Alina Soceanu & Anamaria Niculescu

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  1. Semaghiul Birghila
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  2. Nicoleta Matei
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Birghila, S., Matei, N., Dobrinas, S. et al. Assessment of Heavy Metal Content in Soil and Lycopersicon esculentum (Tomato) and Their Health Implications. Biol Trace Elem Res 201, 1547–1556 (2023). https://doi.org/10.1007/s12011-022-03257-9

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