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Naturally occurring potentially toxic elements in groundwater from the volcanic landscape around Mount Meru, Arusha, Tanzania and their potential health hazard

Ines Tomašek, Hassina Mouri, Antoine Dille, George Bennett, Prosun Bhattacharya, Natacha Brion, Marc Elskens, Karen Fontijn, Yue Gao, Patrick Kirita Gevera, et al.
(2022) SCIENCE OF THE TOTAL ENVIRONMENT. 807(Part 1).
Author
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Abstract
The population of the semi-arid areas of the countries in the East African Rift Valley (EARV) is faced with serious problems associated with the availability and the quality of the drinking water. In these areas, the drinking water supply largely relies on groundwater characterised by elevated fluoride concentration (> 1.5 mg/L), resulting from interactions with the surrounding alkaline volcanic rocks. This geochemical anomaly is often associated with the presence of other naturally occurring potentially toxic elements (PTEs), such as As, Mo, U, V, which are known to cause adverse effects on human health. This study reports on the occurrence of such PTEs in the groundwater on the populated flanks of Mt. Meru, an active volcano situated in the EARV. Our results show that the majority of analysed PTEs (Al, As, Ba, Cd, Cr, Cu, Fe, Mn, Ni, Se, Sr, Pb, and Zn) are within the acceptable limits for drinking purpose in samples collected from wells, springs and tap systems, suggesting that there is no immediate health risk associated with these PTEs. However, some of the samples were found to exceed the WHO tolerance limit for U (> 30 μg/L) and Mo (> 70 μg/L). The sample analysis also revealed that in some of the collected samples, the concentrations of total dissolved solids, Na+ and K+ exceed the permissible limits. The concerning levels of major parameters and PTEs were found to be associated with areas covered with debris avalanche deposits on the northeast flank, and volcanic ash and alluvial deposits on the southwest flanks of the volcano. The study highlights the need to extend the range of elements monitored in the regional groundwater and make a more routine measurement of PTEs to ensure drinking water safety and effective water management measures.
Keywords
Pollution, Waste Management and Disposal, Environmental Chemistry, Environmental Engineering, Potentially toxic elements, Groundwater quality, Health risk assessment, Meru volcano, Tanzania, East African Rift Valley, EAST-AFRICAN RIFT, MAIN ETHIOPIAN RIFT, DRINKING-WATER, TRACE-ELEMENTS, HEAVY-METALS, TUNGSTEN, VANADIUM, CONTAMINATION, MOBILIZATION, MOLYBDENUM

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Citation

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MLA
Tomašek, Ines, et al. “Naturally Occurring Potentially Toxic Elements in Groundwater from the Volcanic Landscape around Mount Meru, Arusha, Tanzania and Their Potential Health Hazard.” SCIENCE OF THE TOTAL ENVIRONMENT, vol. 807, no. Part 1, 2022, doi:10.1016/j.scitotenv.2021.150487.
APA
Tomašek, I., Mouri, H., Dille, A., Bennett, G., Bhattacharya, P., Brion, N., … Kervyn, M. (2022). Naturally occurring potentially toxic elements in groundwater from the volcanic landscape around Mount Meru, Arusha, Tanzania and their potential health hazard. SCIENCE OF THE TOTAL ENVIRONMENT, 807(Part 1). https://doi.org/10.1016/j.scitotenv.2021.150487
Chicago author-date
Tomašek, Ines, Hassina Mouri, Antoine Dille, George Bennett, Prosun Bhattacharya, Natacha Brion, Marc Elskens, et al. 2022. “Naturally Occurring Potentially Toxic Elements in Groundwater from the Volcanic Landscape around Mount Meru, Arusha, Tanzania and Their Potential Health Hazard.” SCIENCE OF THE TOTAL ENVIRONMENT 807 (Part 1). https://doi.org/10.1016/j.scitotenv.2021.150487.
Chicago author-date (all authors)
Tomašek, Ines, Hassina Mouri, Antoine Dille, George Bennett, Prosun Bhattacharya, Natacha Brion, Marc Elskens, Karen Fontijn, Yue Gao, Patrick Kirita Gevera, Julian Ijumulana, Mary Kisaka, Martine Leermakers, Ceven Shemsanga, Kristine Walraevens, Joanna Wragg, and Matthieu Kervyn. 2022. “Naturally Occurring Potentially Toxic Elements in Groundwater from the Volcanic Landscape around Mount Meru, Arusha, Tanzania and Their Potential Health Hazard.” SCIENCE OF THE TOTAL ENVIRONMENT 807 (Part 1). doi:10.1016/j.scitotenv.2021.150487.
Vancouver
1.
Tomašek I, Mouri H, Dille A, Bennett G, Bhattacharya P, Brion N, et al. Naturally occurring potentially toxic elements in groundwater from the volcanic landscape around Mount Meru, Arusha, Tanzania and their potential health hazard. SCIENCE OF THE TOTAL ENVIRONMENT. 2022;807(Part 1).
IEEE
[1]
I. Tomašek et al., “Naturally occurring potentially toxic elements in groundwater from the volcanic landscape around Mount Meru, Arusha, Tanzania and their potential health hazard,” SCIENCE OF THE TOTAL ENVIRONMENT, vol. 807, no. Part 1, 2022.
@article{8723031,
  abstract     = {{The population of the semi-arid areas of the countries in the East African Rift Valley (EARV) is faced with serious problems associated with the availability and the quality of the drinking water. In these areas, the drinking water supply largely relies on groundwater characterised by elevated fluoride concentration (> 1.5 mg/L), resulting from interactions with the surrounding alkaline volcanic rocks. This geochemical anomaly is often associated with the presence of other naturally occurring potentially toxic elements (PTEs), such as As, Mo, U, V, which are known to cause adverse effects on human health. This study reports on the occurrence of such PTEs in the groundwater on the populated flanks of Mt. Meru, an active volcano situated in the EARV.

Our results show that the majority of analysed PTEs (Al, As, Ba, Cd, Cr, Cu, Fe, Mn, Ni, Se, Sr, Pb, and Zn) are within the acceptable limits for drinking purpose in samples collected from wells, springs and tap systems, suggesting that there is no immediate health risk associated with these PTEs. However, some of the samples were found to exceed the WHO tolerance limit for U (> 30 μg/L) and Mo (> 70 μg/L). The sample analysis also revealed that in some of the collected samples, the concentrations of total dissolved solids, Na+ and K+ exceed the permissible limits. The concerning levels of major parameters and PTEs were found to be associated with areas covered with debris avalanche deposits on the northeast flank, and volcanic ash and alluvial deposits on the southwest flanks of the volcano. The study highlights the need to extend the range of elements monitored in the regional groundwater and make a more routine measurement of PTEs to ensure drinking water safety and effective water management measures.}},
  articleno    = {{150487}},
  author       = {{Tomašek, Ines and Mouri, Hassina and Dille, Antoine and Bennett, George and Bhattacharya, Prosun and Brion, Natacha and Elskens, Marc and Fontijn, Karen and Gao, Yue and Gevera, Patrick Kirita and Ijumulana, Julian and Kisaka, Mary and Leermakers, Martine and Shemsanga, Ceven and Walraevens, Kristine and Wragg, Joanna and Kervyn, Matthieu}},
  issn         = {{0048-9697}},
  journal      = {{SCIENCE OF THE TOTAL ENVIRONMENT}},
  keywords     = {{Pollution,Waste Management and Disposal,Environmental Chemistry,Environmental Engineering,Potentially toxic elements,Groundwater quality,Health risk assessment,Meru volcano,Tanzania,East African Rift Valley,EAST-AFRICAN RIFT,MAIN ETHIOPIAN RIFT,DRINKING-WATER,TRACE-ELEMENTS,HEAVY-METALS,TUNGSTEN,VANADIUM,CONTAMINATION,MOBILIZATION,MOLYBDENUM}},
  language     = {{eng}},
  number       = {{Part 1}},
  pages        = {{13}},
  title        = {{Naturally occurring potentially toxic elements in groundwater from the volcanic landscape around Mount Meru, Arusha, Tanzania and their potential health hazard}},
  url          = {{http://doi.org/10.1016/j.scitotenv.2021.150487}},
  volume       = {{807}},
  year         = {{2022}},
}
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