Assessment of Heavy Metal Concentration in Soils Around Geita the Gold Mine, Tanzania
Corresponding Author(s) : mariam mgendi
Journal of Humanities & Social Science (JHSS),
Vol. 9 No. 3 (2021)
Abstract
Health issues related to gold mining cannot be underestimated. Gold mining produce acid
mine drainage (AMD), which in turn releases heavy metals into the nearby environment,
hence causing environmental pollution. Heavy metals are naturally very toxic, thus pose a
great health concern especially when their concentration exceeds the recommended
permissible limits. In this study, concentrations of five heavy metals—including Pb, Ni, Cr,
Cu and Zn—were assessed in the soil around Geita Gold Mine (GGM). A total of 17 sampling
sites were established from which the soil samples were collected at 0-15cm and 15-30cm
soil depth. The concentration of both total and available metal concentrationsfrom each soil
sample was determined using the Inductive Coupled Plasma-Optic Emission Spectrometry
(ICP-OES) Varian 720-ES. Soil characteristics—namely pH, CEC, organic carbon percentage
and clay—were also determined to assess their influence on heavy metals availability. The
highest total metal concentration observed in the soil was 212.4mg/kg for Cr, followed by
71.0mg/kg, 66.2mg/kg, 61.2mg/kg and 50.2mg/kg for Zn, Cu, Pb and Ni, respectively; while
the highest available metal concentration observed was 26.16mg/kg, 20.13mg/kg,
17.99mg/kg, 7.43mg/kg and 2.10mg/kg for Cu, Zn, Pb, Ni, and Cr,respectively. Generally, the
concentration of all heavy metals studied—except Zn—were found higher than the safe
permissible limits, indicating some degrees of soil pollution. Such trends raise a concern
about the quality of local foods grown in the area, and the need to remedy the polluted soil.
However, a Monte Carlo Permutation test showed that none of the soil characteristics
assessed had significant influence on heavy metals availability in the soil (P> 0.05).
Keywords
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- Allen, S. E. 1989. Chemical Analysis of Ecological Materials, 2nd Edn London.
- Almås, Å. R. & M. L. Manoko. 2012. Trace Element Concentrations in Soil, Sediments, and Waters
- in the Vicinity of Geita Gold Mines and North Mara Gold Mines in Northwest Tanzania. Soil and
- Sediment Contamination: An International Journal, 21(2): 135–159.
- Aydinalp, C. & S. Marinova. 2003. Distribution and Forms of Heavy Metals in Some Agricultural Soils.
- Polish Journal of Environmental Studies, 12(5)
- Bitala, M. F., C. Kweyunga & M. L. Manoko. 2009. Levels of Heavy Metals and Cyanide in Soil,
- Sediment and Water from the Vicinity of North Mara Gold Mine in Tarime District, Tanzania.
- Report Presented to the Christian Council of Tanzania, Dodoma.
- Bitala, M. F. 2008. Evaluation of Heavy Metals Pollution in Soil and Plants Accrued from Gold Mining
- Activities in Geita. Tanzania. Dar es Salaam, Tanzania, University of Dar es Salaam.
- Brady, N. C., R. R. Weil & R. R. Weil. 2008. The Nature and Properties of Soils (Vol. 13), pp. 662–710.
- Upper Saddle River, NJ: Prentice Hall.
- Dean, J. R. 2003. Methods for Environmental Trace Analysis (Vol. 12). John Wiley and Sons.
- Duruibe, J. O., M. O. C. Ogwuegbu & J. N. Egwurugwu. 2007. Heavy Metal Pollution and Human
- Biotoxic Effects. International Journal of Physical Sciences, 2(5): 112–118.
- Evjen, C. 2011. Arsenic and Trace Metals in Hair, Nails and Blood of Villagers from the Vicinity of a
- Gold Mine in Tanzania (Master's Thesis).
- Knight, D. 2001. Tanzanian Gold Mine Pollution Causing Deaths. Journal of Cleaner Production, 9(2):
- –189.
- Fifield, F. W. & P. J. Haines, (eds.). 2000. Environmental Analytical Chemistry.
- Getis, A., J. Getis & J. D. Fellmann. 2004. Introduction to Geography. 9th Edition. Mcgraw-Hill Higher
- Education.
- Ghosh, M. & S. P. Singh. 2005. A Review on Phytoremediation of Heavy Metals and Utilization of its
- By-products. Asian J Energy Environ, 6(4): 18.
- Iwegbue, C. A., N. O. Isirimah, C. Igwe & E. S. Williams. 2006. Characteristic Levels of Heavy Metals in
- Soil Profiles of Automobile Mechanic Waste Dumps in Nigeria. Environmentalist, 26(2): 123–128.
- Jennings, S. R., D. Neuman & P. Blicker. 2008. Acid Mine Drainage and Effects on Fish Health and
- Ecology: A Review Reclamation Research Group. LLC, Bozeman, Montana.
- Jung, M. C. 2008. Heavy Metal Concentrations in Soils and Factors Affecting Metal Uptake by Plants
- in the Vicinity of a Korean Cu-W Mine. Sensors, 8(4): 2413–2423.
- Klute, A. 1996. Methods of Soil Analysis: Part 1. Physical and Mineralogical Methods. Madison, Wisconsin.
- Kim, D. S., K. G. An & K. H. Kim. 2003. Heavy Metal Pollution in the Soils of Various Land Use Types
- Based on Physicochemical Characteristics. Journal of Environmental Science and Health, Part A,
- (5): 839–853.
- Matini, L., P. R. Ongoka & J. P. Tathy. 2011. Heavy Metals in Soil on Spoil Heap of an Abandoned
- Lead Ore Treatment Plant, SE Congo-Brazzaville. African Journal of Environmental Science and
- Technology, 5(2): 89–97.
- Mclean, E. O. 1983. Soil Ph and Lime Requirement. Methods of Soil Analysis: Part 2 Chemical and
- Microbiological Properties, 9: 199–224.
- Mart?nez, C. E. & H. L. Motto. 2000. Solubility of Lead, Zinc and Copper Added to Mineral Soils.
- Environmental Pollution, 107(1): 153–158.
- Nyatwere, M., L. K. M. Mkabwa & K. R. Zachariah. 2012. Distribution Patterns of Plant Species
- Around North Mara Gold Mine in Tanzania. International Journal of Agriscience, 2(4): 302-312.
- Owojori, O. J., A. J. Reinecke & A. B. Rozanov. 2010. Influence of Clay Content on Bioavailability of
- Copper in the Earthworm Eisenia Fetida. Ecotoxicology and Environmental Safety, 73(3): 407–414.
- Bitala, M. F., C. Kweyunga & M. L. Manoko. 2009. Levels of Heavy Metals and Cyanide in Soil,
- Sediment and Water from the Vicinity of North Mara Gold Mine in Tarime District, Tanzania.
- Report Presented to the Christian Council of Tanzania, Dodoma.
- Bitala, M. F. 2008. Evaluation of Heavy Metals Pollution in Soil and Plants Accrued from Gold Mining
- Activities in Geita. Tanzania. Dar es Salaam, Tanzania, University of Dar es Salaam.
- Brady, N. C., R. R. Weil & R. R. Weil. 2008. The Nature and Properties of Soils (Vol. 13), pp. 662–710.
- Upper Saddle River, NJ: Prentice Hall.
- Dean, J. R. 2003. Methods for Environmental Trace Analysis (Vol. 12). John Wiley and Sons.
- Duruibe, J. O., M. O. C. Ogwuegbu & J. N. Egwurugwu. 2007. Heavy Metal Pollution and Human
- Biotoxic Effects. International Journal of Physical Sciences, 2(5): 112–118.
- Evjen, C. 2011. Arsenic and Trace Metals in Hair, Nails and Blood of Villagers from the Vicinity of a
- Gold Mine in Tanzania (Master's Thesis).
- Knight, D. 2001. Tanzanian Gold Mine Pollution Causing Deaths. Journal of Cleaner Production, 9(2):
- –189.
- Fifield, F. W. & P. J. Haines, (eds.). 2000. Environmental Analytical Chemistry.
- Getis, A., J. Getis & J. D. Fellmann. 2004. Introduction to Geography. 9th Edition. Mcgraw-Hill Higher
- Education.
- Ghosh, M. & S. P. Singh. 2005. A Review on Phytoremediation of Heavy Metals and Utilization of its
- By-products. Asian J Energy Environ, 6(4): 18.
- Iwegbue, C. A., N. O. Isirimah, C. Igwe & E. S. Williams. 2006. Characteristic Levels of Heavy Metals in
- Soil Profiles of Automobile Mechanic Waste Dumps in Nigeria. Environmentalist, 26(2): 123–128.
- Jennings, S. R., D. Neuman & P. Blicker. 2008. Acid Mine Drainage and Effects on Fish Health and
- Ecology: A Review Reclamation Research Group. LLC, Bozeman, Montana.
- Jung, M. C. 2008. Heavy Metal Concentrations in Soils and Factors Affecting Metal Uptake by Plants
- in the Vicinity of a Korean Cu-W Mine. Sensors, 8(4): 2413–2423.
- Klute, A. 1996. Methods of Soil Analysis: Part 1. Physical and Mineralogical Methods. Madison, Wisconsin.
- Kim, D. S., K. G. An & K. H. Kim. 2003. Heavy Metal Pollution in the Soils of Various Land Use Types
- Based on Physicochemical Characteristics. Journal of Environmental Science and Health, Part A,
- (5): 839–853.
- Matini, L., P. R. Ongoka & J. P. Tathy. 2011. Heavy Metals in Soil on Spoil Heap of an Abandoned
- Lead Ore Treatment Plant, SE Congo-Brazzaville. African Journal of Environmental Science and
- Technology, 5(2): 89–97.
- Mclean, E. O. 1983. Soil Ph and Lime Requirement. Methods of Soil Analysis: Part 2 Chemical and
- Microbiological Properties, 9: 199–224.
- Mart?nez, C. E. & H. L. Motto. 2000. Solubility of Lead, Zinc and Copper Added to Mineral Soils.
- Environmental Pollution, 107(1): 153–158.
- Nyatwere, M., L. K. M. Mkabwa & K. R. Zachariah. 2012. Distribution Patterns of Plant Species
- Around North Mara Gold Mine in Tanzania. International Journal of Agriscience, 2(4): 302-312.
- Owojori, O. J., A. J. Reinecke & A. B. Rozanov. 2010. Influence of Clay Content on Bioavailability of
- Copper in the Earthworm Eisenia Fetida. Ecotoxicology and Environmental Safety, 73(3): 407–414.
References
Allen, S. E. 1989. Chemical Analysis of Ecological Materials, 2nd Edn London.
Almås, Å. R. & M. L. Manoko. 2012. Trace Element Concentrations in Soil, Sediments, and Waters
in the Vicinity of Geita Gold Mines and North Mara Gold Mines in Northwest Tanzania. Soil and
Sediment Contamination: An International Journal, 21(2): 135–159.
Aydinalp, C. & S. Marinova. 2003. Distribution and Forms of Heavy Metals in Some Agricultural Soils.
Polish Journal of Environmental Studies, 12(5)
Bitala, M. F., C. Kweyunga & M. L. Manoko. 2009. Levels of Heavy Metals and Cyanide in Soil,
Sediment and Water from the Vicinity of North Mara Gold Mine in Tarime District, Tanzania.
Report Presented to the Christian Council of Tanzania, Dodoma.
Bitala, M. F. 2008. Evaluation of Heavy Metals Pollution in Soil and Plants Accrued from Gold Mining
Activities in Geita. Tanzania. Dar es Salaam, Tanzania, University of Dar es Salaam.
Brady, N. C., R. R. Weil & R. R. Weil. 2008. The Nature and Properties of Soils (Vol. 13), pp. 662–710.
Upper Saddle River, NJ: Prentice Hall.
Dean, J. R. 2003. Methods for Environmental Trace Analysis (Vol. 12). John Wiley and Sons.
Duruibe, J. O., M. O. C. Ogwuegbu & J. N. Egwurugwu. 2007. Heavy Metal Pollution and Human
Biotoxic Effects. International Journal of Physical Sciences, 2(5): 112–118.
Evjen, C. 2011. Arsenic and Trace Metals in Hair, Nails and Blood of Villagers from the Vicinity of a
Gold Mine in Tanzania (Master's Thesis).
Knight, D. 2001. Tanzanian Gold Mine Pollution Causing Deaths. Journal of Cleaner Production, 9(2):
–189.
Fifield, F. W. & P. J. Haines, (eds.). 2000. Environmental Analytical Chemistry.
Getis, A., J. Getis & J. D. Fellmann. 2004. Introduction to Geography. 9th Edition. Mcgraw-Hill Higher
Education.
Ghosh, M. & S. P. Singh. 2005. A Review on Phytoremediation of Heavy Metals and Utilization of its
By-products. Asian J Energy Environ, 6(4): 18.
Iwegbue, C. A., N. O. Isirimah, C. Igwe & E. S. Williams. 2006. Characteristic Levels of Heavy Metals in
Soil Profiles of Automobile Mechanic Waste Dumps in Nigeria. Environmentalist, 26(2): 123–128.
Jennings, S. R., D. Neuman & P. Blicker. 2008. Acid Mine Drainage and Effects on Fish Health and
Ecology: A Review Reclamation Research Group. LLC, Bozeman, Montana.
Jung, M. C. 2008. Heavy Metal Concentrations in Soils and Factors Affecting Metal Uptake by Plants
in the Vicinity of a Korean Cu-W Mine. Sensors, 8(4): 2413–2423.
Klute, A. 1996. Methods of Soil Analysis: Part 1. Physical and Mineralogical Methods. Madison, Wisconsin.
Kim, D. S., K. G. An & K. H. Kim. 2003. Heavy Metal Pollution in the Soils of Various Land Use Types
Based on Physicochemical Characteristics. Journal of Environmental Science and Health, Part A,
(5): 839–853.
Matini, L., P. R. Ongoka & J. P. Tathy. 2011. Heavy Metals in Soil on Spoil Heap of an Abandoned
Lead Ore Treatment Plant, SE Congo-Brazzaville. African Journal of Environmental Science and
Technology, 5(2): 89–97.
Mclean, E. O. 1983. Soil Ph and Lime Requirement. Methods of Soil Analysis: Part 2 Chemical and
Microbiological Properties, 9: 199–224.
Mart?nez, C. E. & H. L. Motto. 2000. Solubility of Lead, Zinc and Copper Added to Mineral Soils.
Environmental Pollution, 107(1): 153–158.
Nyatwere, M., L. K. M. Mkabwa & K. R. Zachariah. 2012. Distribution Patterns of Plant Species
Around North Mara Gold Mine in Tanzania. International Journal of Agriscience, 2(4): 302-312.
Owojori, O. J., A. J. Reinecke & A. B. Rozanov. 2010. Influence of Clay Content on Bioavailability of
Copper in the Earthworm Eisenia Fetida. Ecotoxicology and Environmental Safety, 73(3): 407–414.
Bitala, M. F., C. Kweyunga & M. L. Manoko. 2009. Levels of Heavy Metals and Cyanide in Soil,
Sediment and Water from the Vicinity of North Mara Gold Mine in Tarime District, Tanzania.
Report Presented to the Christian Council of Tanzania, Dodoma.
Bitala, M. F. 2008. Evaluation of Heavy Metals Pollution in Soil and Plants Accrued from Gold Mining
Activities in Geita. Tanzania. Dar es Salaam, Tanzania, University of Dar es Salaam.
Brady, N. C., R. R. Weil & R. R. Weil. 2008. The Nature and Properties of Soils (Vol. 13), pp. 662–710.
Upper Saddle River, NJ: Prentice Hall.
Dean, J. R. 2003. Methods for Environmental Trace Analysis (Vol. 12). John Wiley and Sons.
Duruibe, J. O., M. O. C. Ogwuegbu & J. N. Egwurugwu. 2007. Heavy Metal Pollution and Human
Biotoxic Effects. International Journal of Physical Sciences, 2(5): 112–118.
Evjen, C. 2011. Arsenic and Trace Metals in Hair, Nails and Blood of Villagers from the Vicinity of a
Gold Mine in Tanzania (Master's Thesis).
Knight, D. 2001. Tanzanian Gold Mine Pollution Causing Deaths. Journal of Cleaner Production, 9(2):
–189.
Fifield, F. W. & P. J. Haines, (eds.). 2000. Environmental Analytical Chemistry.
Getis, A., J. Getis & J. D. Fellmann. 2004. Introduction to Geography. 9th Edition. Mcgraw-Hill Higher
Education.
Ghosh, M. & S. P. Singh. 2005. A Review on Phytoremediation of Heavy Metals and Utilization of its
By-products. Asian J Energy Environ, 6(4): 18.
Iwegbue, C. A., N. O. Isirimah, C. Igwe & E. S. Williams. 2006. Characteristic Levels of Heavy Metals in
Soil Profiles of Automobile Mechanic Waste Dumps in Nigeria. Environmentalist, 26(2): 123–128.
Jennings, S. R., D. Neuman & P. Blicker. 2008. Acid Mine Drainage and Effects on Fish Health and
Ecology: A Review Reclamation Research Group. LLC, Bozeman, Montana.
Jung, M. C. 2008. Heavy Metal Concentrations in Soils and Factors Affecting Metal Uptake by Plants
in the Vicinity of a Korean Cu-W Mine. Sensors, 8(4): 2413–2423.
Klute, A. 1996. Methods of Soil Analysis: Part 1. Physical and Mineralogical Methods. Madison, Wisconsin.
Kim, D. S., K. G. An & K. H. Kim. 2003. Heavy Metal Pollution in the Soils of Various Land Use Types
Based on Physicochemical Characteristics. Journal of Environmental Science and Health, Part A,
(5): 839–853.
Matini, L., P. R. Ongoka & J. P. Tathy. 2011. Heavy Metals in Soil on Spoil Heap of an Abandoned
Lead Ore Treatment Plant, SE Congo-Brazzaville. African Journal of Environmental Science and
Technology, 5(2): 89–97.
Mclean, E. O. 1983. Soil Ph and Lime Requirement. Methods of Soil Analysis: Part 2 Chemical and
Microbiological Properties, 9: 199–224.
Mart?nez, C. E. & H. L. Motto. 2000. Solubility of Lead, Zinc and Copper Added to Mineral Soils.
Environmental Pollution, 107(1): 153–158.
Nyatwere, M., L. K. M. Mkabwa & K. R. Zachariah. 2012. Distribution Patterns of Plant Species
Around North Mara Gold Mine in Tanzania. International Journal of Agriscience, 2(4): 302-312.
Owojori, O. J., A. J. Reinecke & A. B. Rozanov. 2010. Influence of Clay Content on Bioavailability of
Copper in the Earthworm Eisenia Fetida. Ecotoxicology and Environmental Safety, 73(3): 407–414.