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Trace element content in cereals from a gold mining site in Burkina Faso and intake risk assessment

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Abstract
Cereals grown close to mining sites could contain high levels of trace elements which could jeopardize local population health through intake of those crops. This study investigated for the first time the concentration of trace elements, namely arsenic, cadmium, cobalt, chromium, copper, iron, manganese, nickel, lead and zinc in four types of cereals (two of maize and two of sorghum) grown within the perimeter of a gold mine and at three surrounding villages in Burkina Faso. A total of 47 samples were taken. Cereal consumption surveys in those villages were undertaken to evaluate the intake hazard. Average arsenic content trend was Site (0.31 +/- 0.56 mg kgdw(-1)) > Songo (0.18 +/- 0.17 mg kgdw(-1)) > Sighnoguin (0.15 +/- 0.10 mg kgdw(-1)) > Youga (0.10 +/- 0.00 mg kgdw(-1)); subsequently, the average estimated daily intake of Arsenic followed this pattern: Site > Songo > Sighnoguin > Youga with 1.93, 1.08, 0.89 and 0.63 lig kgbw(-1) day(-1) respectively which all fall below a target hazard quotient of 1. Non-parametric Kruskal-Wallis tests confirmed significant difference of Co, Cu, Fe, Mn and Ni between locations whilst not significant differences were found for As, Cd, Pb and Zn. Considering cereals types, yellow corn from the mine site exhibited As value higher than the Referential dose (2.14 mu g kgbw(-1) day(-1)) and consequently a target hazard quotient of 1.97. This finding indicates that there is an intake risk to the local population from dietary intake. Contamination by As could be linked to mining activities on parent rocks that contain As with spread by wind to Songo and Youga. Sighnoguin village is more subject to contamination by agricultural practices. Decontamination of the site and selection of cereals with low uptake capability and some changes to agricultural practices could reduce the hazards.
Keywords
Cereal contaminations, Hazard index, Intake risk assessment, Mining site, Local population cereals intake, Target hazards quotient, HEAVY-METALS, HEALTH-RISKS, SORGHUM PLANTS, FOOD CROPS, HELIANTHUS-ANNUUS, ACCUMULATION, SOIL, CONSUMPTION, VICINITY, GRAIN

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MLA
Compaore, Wendkuuni Florentin, et al. “Trace Element Content in Cereals from a Gold Mining Site in Burkina Faso and Intake Risk Assessment.” JOURNAL OF ENVIRONMENTAL MANAGEMENT, vol. 248, 2019, doi:10.1016/j.jenvman.2019.109292.
APA
Compaore, W. F., Dumoulin, A., & Rousseau, D. (2019). Trace element content in cereals from a gold mining site in Burkina Faso and intake risk assessment. JOURNAL OF ENVIRONMENTAL MANAGEMENT, 248. https://doi.org/10.1016/j.jenvman.2019.109292
Chicago author-date
Compaore, Wendkuuni Florentin, Ann Dumoulin, and Diederik Rousseau. 2019. “Trace Element Content in Cereals from a Gold Mining Site in Burkina Faso and Intake Risk Assessment.” JOURNAL OF ENVIRONMENTAL MANAGEMENT 248. https://doi.org/10.1016/j.jenvman.2019.109292.
Chicago author-date (all authors)
Compaore, Wendkuuni Florentin, Ann Dumoulin, and Diederik Rousseau. 2019. “Trace Element Content in Cereals from a Gold Mining Site in Burkina Faso and Intake Risk Assessment.” JOURNAL OF ENVIRONMENTAL MANAGEMENT 248. doi:10.1016/j.jenvman.2019.109292.
Vancouver
1.
Compaore WF, Dumoulin A, Rousseau D. Trace element content in cereals from a gold mining site in Burkina Faso and intake risk assessment. JOURNAL OF ENVIRONMENTAL MANAGEMENT. 2019;248.
IEEE
[1]
W. F. Compaore, A. Dumoulin, and D. Rousseau, “Trace element content in cereals from a gold mining site in Burkina Faso and intake risk assessment,” JOURNAL OF ENVIRONMENTAL MANAGEMENT, vol. 248, 2019.
@article{8632854,
  abstract     = {Cereals grown close to mining sites could contain high levels of trace elements which could jeopardize local population health through intake of those crops. This study investigated for the first time the concentration of trace elements, namely arsenic, cadmium, cobalt, chromium, copper, iron, manganese, nickel, lead and zinc in four types of cereals (two of maize and two of sorghum) grown within the perimeter of a gold mine and at three surrounding villages in Burkina Faso. A total of 47 samples were taken. Cereal consumption surveys in those villages were undertaken to evaluate the intake hazard. Average arsenic content trend was Site (0.31 +/- 0.56 mg kgdw(-1)) > Songo (0.18 +/- 0.17 mg kgdw(-1)) > Sighnoguin (0.15 +/- 0.10 mg kgdw(-1)) > Youga (0.10 +/- 0.00 mg kgdw(-1)); subsequently, the average estimated daily intake of Arsenic followed this pattern: Site > Songo > Sighnoguin > Youga with 1.93, 1.08, 0.89 and 0.63 lig kgbw(-1) day(-1) respectively which all fall below a target hazard quotient of 1. Non-parametric Kruskal-Wallis tests confirmed significant difference of Co, Cu, Fe, Mn and Ni between locations whilst not significant differences were found for As, Cd, Pb and Zn. Considering cereals types, yellow corn from the mine site exhibited As value higher than the Referential dose (2.14 mu g kgbw(-1) day(-1)) and consequently a target hazard quotient of 1.97. This finding indicates that there is an intake risk to the local population from dietary intake. Contamination by As could be linked to mining activities on parent rocks that contain As with spread by wind to Songo and Youga. Sighnoguin village is more subject to contamination by agricultural practices. Decontamination of the site and selection of cereals with low uptake capability and some changes to agricultural practices could reduce the hazards.},
  articleno    = {109292},
  author       = {Compaore, Wendkuuni Florentin and Dumoulin, Ann and Rousseau, Diederik},
  issn         = {0301-4797},
  journal      = {JOURNAL OF ENVIRONMENTAL MANAGEMENT},
  keywords     = {Cereal contaminations,Hazard index,Intake risk assessment,Mining site,Local population cereals intake,Target hazards quotient,HEAVY-METALS,HEALTH-RISKS,SORGHUM PLANTS,FOOD CROPS,HELIANTHUS-ANNUUS,ACCUMULATION,SOIL,CONSUMPTION,VICINITY,GRAIN},
  language     = {eng},
  pages        = {10},
  title        = {Trace element content in cereals from a gold mining site in Burkina Faso and intake risk assessment},
  url          = {http://dx.doi.org/10.1016/j.jenvman.2019.109292},
  volume       = {248},
  year         = {2019},
}

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