alexa Investigation of Metals Accumulation in Some Vegetables Irrigated with Waste Water in Shahre Rey-Iran and Toxicological Implications


Journal of Clinical Toxicology

Author(s): Mohsen Bigdeli, Mohsen Seilsepour

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Vegetables grown at environmentally contaminated sites in Sahre Rey could take up and accumulate metals at concentrations that are probably toxic to human health. This study was conducted to analyze the metal contents of some vegetables in Sahre Rey-Iran with emphasis on their toxicological implications. Recently matured leaf and fruit samples of Shahre rey vegetable farms were sampled and analyzed to determine heavy metals. Data showed that metal uptake differences by the vegetables are attributed to plant differences in tolerance to heavy metals and vegetable species. The lead concentration in all vegetable samples was more than maximum permitted concentrations, while Cd pollution was observed in radish, Cress, Dill, spinach and eggplant. Data showed that Zn concentration in Celery, Mint, Dill, Spinach and Green pepper were more than Zn permitted level. There was no evidence about Cu contamination in vegetables. Data also showed that the intake of most of the metals constitutes less than the TMDI (theoretical maximum daily intake) at present and hence health risk is minimal. But with increase in vegetable consumption by the community the situation could worsen in the future. Treatment of industrial effluents and phyto-extraction of excess metals from polluted environments could reduce health risk.

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This article was published in American-Eurasian J. Agric. & Environ. Sci. and referenced in Journal of Clinical Toxicology

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