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Arsenic, Cadmium, and Mercury in Cocoyam (Xanthosoma sagititolium) and Watercocoyam (Colocasia esculenta) in Tarkwa a Mining Community

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Abstract

Cocoyam (Xanthosoma sagititolium) and Watercocoyam (Colocasia esculenta) have gained increased importance in the diets of majority of people in developing countries such as Ghana. The concentration levels of arsenic, cadmium, and mercury in Cocoyam (X. sagititolium) and Watercocoyam (C. esculenta) in Tarkwa and its surrounding villages a mining community in Ghana were measured in this study. From the results of the study, the levels of arsenic, cadmium and mercury in X. sagititolium and C. esculenta were higher than the WHO recommended levels. These root tubers absorb or uptake toxic chemicals from the soil as a result of the mining operations. This means that, the consumption of X. sagititolium and C. esculenta by humans from such environments may pose a serious health risk. There is therefore the need for a concerted effort by all to minimize the negative impact of gold mining in the study area.

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Acknowledgments

We thank the government of Ghana for his financial support and the farmers in the study area.

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Authors and Affiliations

  1. Environmental Research Group, Department of Chemistry, University of Cape Coast, Cape Coast, Ghana

    D. K. Essumang, D. K. Dodoo, S. Obiri & J. Y. Yaney

Authors
  1. D. K. Essumang
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  2. D. K. Dodoo
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  3. S. Obiri
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  4. J. Y. Yaney
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Correspondence to D. K. Essumang.

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Essumang, D., Dodoo, D., Obiri, S. et al. Arsenic, Cadmium, and Mercury in Cocoyam (Xanthosoma sagititolium) and Watercocoyam (Colocasia esculenta) in Tarkwa a Mining Community. Bull Environ Contam Toxicol 79, 377–379 (2007). https://doi.org/10.1007/s00128-007-9244-1

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  • DOI: https://doi.org/10.1007/s00128-007-9244-1

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