The Current Trends in Lead Contamination in Zambian Towns: Save the Innocents
DOI:
https://doi.org/10.6092/issn.2281-4485/12548Keywords:
human health, lead contamination, lead toxicity, remediation, ZambiaAbstract
Lead (Pb) is a heavy metal which was actively mined in Kabwe, in Zambia’s Central Province and to a lesser extent, on the Copperbelt. Though the lead-zinc mine in Kabwe closed almost three decades ago, the risks associated with chronic exposure to the toxic heavy metal have not been addressed and remain a source of grave concern. Kabwe still remains one of the most lead contaminated towns in the world. Studies have shown that lead levels in soil, water and sediment far exceed permissible limits set by the World Health Organization. Recent investigations on the children under the age of seven in the mining towns have revealed arming levels of lead in their blood. Similarly, high level of lead has also been recorded in livestock in the same towns. Lead affects all organs of the body, particularly the nervous system. This paper identifies the various sources of Pb contamination in Zambian towns and the effects of lead toxicity on human health. Currently there are no any mitigation measures in place to protect people and livestock from excessive exposure to lead in the mining towns. The paper proposes sustainable bioremediation measures that can be used to reduce lead contamination in Zambian mining towns.
References
BANDEMEHR A. (2020) Overview of lead paint laws in Africa. ECOWAS regional Meeting on Lead in Paint. US EPA; Global Alliance to Eliminate Lead Paint. http://www.saicm.org/Portals/12/Documents/GEF-Project/ECOWAS/US-EPA_Africa_ Region_Lead_Paint_Laws_August_2020-EN.pdf.
BBC News (2020) Zambia: Anglo American sued for 'mass lead poisoning'. https://www.bbc.com/news/world-africa-54634511?xtor=AL-72-%5Bpartner%5D-%5Bmicrosoft%5D-%5Bheadline%5D-%5Bnews%5D-%5Bbizde%E2%80%A6%202.
BRANAN N. (2008). Mining leaves nasty legacy in Zambia (American Geological Institute) Geotimes/ EARTH Magazine: http://www.geotimes.org/jan08/article.html?id=nn_zambia. html.
BRINK S. (2019). Whatever Happened To ... The Kids Whose Lead Levels Were Off The Charts? (NPR) Goats and Soda: https://www.npr.org/sections/goatsandsoda /2019/08/29/ 754391827/whatever-happened-to-the-kids-whose-lead-levels-were-off-the-charts.
BURGA D., SAUNDERS K. (2019) Understanding and mitigating lead exposure in Kabwe: a One health approach. Lusaka; Zambia: Southern African Institute for Policy and Research. http://saipar.org/wp-content/uploads/2020/03/Saunders.Burga_.CCZ_-1.pdf
CARAVANOS J., FULLER R., RICHARDSON S. (2014) Severe environmental contamination and elevated blood lead levels amoong children - Zambia, 2014. Morbidity and Mortality Weekly Report, 3(44):1013. PMCID: PMC5779487
ETTLER V., KRIBEK B., MAJER V., KNESL I., MIHALJEVIC M. (2011) Differences in the bioaccessibility of metals/metalloids in soils from mining and smelting areas (Copperbelt, Zambia). Journal of Geochemical Exploration, 113:68 -75. ISBN 978-80-7075-781-9
ETTLER V., STEPANEK D., MIHALJEVIC M., DRAHOTA P., JEDLICKA R., KRÍBEK B., NYAMBE I. (2020) Slag dusts from Kabwe (Zambia): Contaminant mineralogy and oral bioaccessibility. Chemosphere, 260:1-10. Doi: 10.1039/D0EM00447B
FESTIN E.S., TIGABU M., CHILESHE M.N., SYAMPUNGANI S., ODE´N P.C. (2019) Progresses in restoration of post-mining landscape in Africa. Journal of Forestry Research, 30(2):381–396. https://doi.org/10.1007/s11676-018-0621-x
HUMAN RIGHTS WATCH (2018) Problems that lead is causing for children and their rights in Zambia. New York: Human Rights Watch. https://www.hrw.org/news/2019/08/23/ zambia-lead-contamination-imperils-children
HUMAN RIGHTS WATCH (2019) We have to be worried: the impact of lead contamination on children's rights in Kabwe, Zambia. New York: Human Rights watch. https://www.hrw.org/news/2019/10/22/why-children-kabwe-zambia-still-suffer-lead-poisoning
IKENAKA Y., NAKAYAMA S.M., MUROYA T., YABE J., KONNAI S., DARWISH W.S., ISHIZUKA M. (2012) Effects of environmental lead contamination on cattle in a lead/zinc mining area: changes in cattle immune systems on exposure to lead in vivo and in vitro. Environmental Toxicology and Chemistry, 31:1-6. Doi: 10.1002/etc.1951
IKENAKA Y., NAKAYAMA S.M., MUZANDU K., CHOONGO K., TERAOKA H., MIZUNO N., ISHIZUKA M. (2010) Heavy metal contamination of soil and sediment in Zambia. African Journal of Environmental Science and Technology, 4(11):729-739. Doi: 10.4314/ajest.v4i11.71339
IPEN- International Pollutant Elimination Network (2020) Global lead paint elimination report. Gothenburg; Sweden: International Pollutant Elimination Network (IPEN). https://ipen.org/sites/default/files/documents/ipen-global-lead-report-2020-v1_3a-en.pdf
KACHENGA L. (2017) Phytoremediation potential of indigenous plants at Nchanga Mine, Chingola, Zambia. Lusaka, Zambia: University of Zambia. http://dspace.unza.zm/handle/ 123456789/6259
KAPUNGWE E.M. (2013) Heavy metal contaminated food crops irrigated with wastewater in peri urban areas, Zambia. (3, Ed.) Open Journal of Metal, 77-88. Doi: 10.4236/ojmetal.2013.32A1010
KORDAS K., RAVENSCROFT J., CAO Y., MCLEAN E.V. (2018) Lead exposure in low and middle-income countries: Perspectives and lessons on patterns, injustices, economics and politics. International Journal of Environmental Research and Public Health, 15(2351). Doi: 10.3390/ijerph15112351
LEIGHDAY (2020) Anglo American sued on behalf of children and women poisoned by the world's most toxic lead mine. https://www.leighday.co.uk/latest-updates/news/2020-news/anglo-american-sued-on-behalf-of-children-and-women-poisoned-by-the-worlds-most-toxic-lead-mine/
LETEINTURIER B., LAROCHE J., MATERA J., MALAISSE F. (2001) Reclamation of lead-zinc processing wastes at Kabwe, Zambia: a phytogeochemical approach. South African Journal of Science, 97:624-627. https://hdl.handle.net/10520/EJC97230
LINDAHL J. (2014) Evironmental impacts f mining in Zambia: Towards better environmental management and sustainable exploitation of mineral resources. Uppsala: SGU. http://resource.sgu.se/produkter/sgurapp/s1422-rapport.pdf
M’KANDAWIRE E., CHOONGO K., YABE J., MWASE M., SAASA N., NAKAYAMA S.M., BLINDAUER C.A. (2017) Sediment metal contamination in the Kafue River of Zambia and ecological risk assessment. Bulletin of Environmental Contamination and Toxicology, 99:108–116. Doi: 10.1007/s00128-017-2089-3
MAJER V., KNESL I., KRIBEK B., NYAMBE I.A., ZIWA G., MIHALJEVIC M., SRACEK O. (2011) Soil contamination and health risks associated with former Pb and Zn ore smelting in Kabwe, Zambia. IGCP/ SIDA Project 594, Inaugural Workshop (págs. 43 - 47). Kabwe; Zambia: Czech Geological Survey. https://doi.org/10.1016/j.gexplo. 2018.11.018
MAKONDO C.C., MUNDIKE J., MWAANGA P. (2013).Lead deposition from mobile sources: A case study of Ndola-Kitwe dual carriage highway. American Journal of Environmental Protection, 2(6):128-133. doi: 10.11648/j.ajep.20130206.12
MBEWE G., MUTONDO M., MASEKA K., SICHILONGO K. (2016) Assessment of heavy-metal pollution in sediments and Tilapia fish species in Kafue River of Zambia. Archives of Environmental Contamination and Toxicology, 71:383–393. Doi: 10.1007/s00244-016-0295-3
MIHALJEVIC M., ETTLER V., SEBEK O., SRACEK O., KRIBEK B., KYNCL T., VESELOVSKY F (2011) Lead isotopic and metallic pollution record in tree rings from the Copperbelt mining–smelting area, Zambia. Water, Air, & Soil Pollution, 216:657–668. https://doi.org/10.1016/j.gexplo.2005.08.025
MUSENGA M., MBEWE A.R., BANDA L. (2017) Lead in solvent-based paints for home use in Zambia. Livingstone, Zambia: Children’s Environmental Health Foundation (CEHF) & International Pollutants Elimination Network (IPEN). https://ipen.org/sites/default/ files/documents/ipen-zambia-lead-report%20final.pdf
MWAANGA P., SILONDWA M., KASALI G., BANDA P.M. (2019) Preliminary review of mine air pollution in Zambia. Heliyon, 5. Doi: 10.1016/j.heliyon.2019.e02485
MWASE M., VIKTOR T., NORRGREN L. (1998) Effects on tropical fish of soil sediments from Kafue River, Zambia. Bulletin of Environmental Contamination and Toxicology, 61: 96-101. Doi: 10.1007/s001289900734
MWENDA M. (2020) Zambian villagers sue mining giant for poisoning thousands of children in Kabwe. LifeGate: https://www.lifegate.com/kabwe-lead-poisoning-lawsuit.
NACHIYUNDE K., IKEDA H., OKUDA T., NISHIJIMA W. (2013) Assessment of dissolved heavy metal pollutionn in five provinces of Zambia. Journal of Environmental Protection, 4:80-85. Doi: 10.4236/jep.2013.41B015
NAKAYAMA S.M., IKENAKA Y., HAMADA K., MUZANDU K., CHOONGO K., TERAOKA H., ISHIZUKA M. (2011) Metal and metalloid contamination in roadside soil and wild rats around a Pb-Zn mine in Kabwe, Zambia. Environmental Pollution, 159(1):175 -181. Doi: 10.1016/j.envpol.2010.09.007
NAKAYAMA S.M., IKENAKA Y., HAMADA K., MUZANDU K., CHOONGO K., YABE J., MAYUMIISHIZUKA M. (2013) Accumulation and biological effects of metals in wild rats in mining areas of Zambia. Environmental Monitoring and Assessment, 185:4907–4918. Doi: 10.1007/s10661-012-2912-6
NYAMBE I.A., CHIRWA M., CHAZIYA B. (2014) Impacts of past mining activities on the ecosystem and on human health in Kabwe town, Zambia. Workshop on environmental and health impacts of mining activities in the Sub-Saharan African countries. https://scholar.google.com/scholar?cluster=3694193544449993289&hl=en&oi=scholarr
PHIRI P. (2016) Locals at Zambia mine site call threat of lead poisoning better than starvation. Washington, D.C: Global Press Journal. https://globalpressjournal.com/africa/ zambia/scavengers-zambia-mine-site-call-threat-lead-poisoning-better-starvation/
PLUMLEE G.S., MORMAN,S.A. (2011) Mine wastes and human health. Elements, 7:399-404. Doi: 10.2113/gselements.7.6.399
PURE EARTH (2014) Completion project report: Kabwe lead smelter clean-up. New York: Pure Earth. https://www.pureearth.org/wp-content/uploads/2014/03/Kabwe-Project-Completion.pdf
PURE EARTH (2017) Global lead programme: Proven strategies to remediate lead pollution and reduce public health risks. New York: Pure Earth. http://www.pureearth.org/wp-content/uploads/2017/10/Pure-Earth-Global-Lead-Program-10.30.17.pdf
REES N., FULLER R. (2020) The toxic truth: Children’s exposure to lead pollution undermines a generation of future potential. New York: UNICEF/ Pure Earth-Blacksmith Institute. https://www.unicef.org/sites/default/files/2020-07/The-toxic-truth-children% E2%80%99s-exposure-to-lead-pollution-2020.pdf
SYAKALIMA M.S., CHOONGO K.C., CHILONDA P., AHMADU B., MWASE M., ONUMA M., NAKAZATO Y. (2001) Bioaccumulation of lead in wildlife dependent on the contaminated environment of the Kafue Flats. Bulletin of Environmental Contamination and Toxicology, 67:438–445. Doi: 10.1007/s001280143
TANGVIROON P., NOTO K., IGARASHI T., KAWASHIMA T., ITO M., SATO T., ISHIZUKA M. (2020) Immobilization of lead and zinc leached from mining residual materials in Kabwe, Zambia: Possibility of chemical immobilization by dolomite, calcined dolomite, and magnesium oxide. Minerals, 10(763), 16. https://doi.org/10.3390/ min10090763
TEMBO B.D., SICHILONGO K., CERNAK J. (2006) Distribution of copper, lead, cadmium and zinc concentrations in soils around Kabwe town in Zambia. Chemosphere, 63: 497-501. Doi: 10.1016/j.chemosphere.2005.08.002
THE NEW HUMANITARIAN (2005). Lead poisoning concern in mining town. (IRIN News/ The United Nations Office for the Coordination of Humanitarian Affairs https://www.thenewhumanitarian.org/feature/2005/03/08/lead-poisoning-concern-mining-town
THE WORLD BANK (2016) Zambia - Mining and Environmental Remediation and Improvement Project (P154683) - Project Appraisal Document. Washingstone, D.C: The World Bank. https://projects.worldbank.org/en/projects-operations/project-detail/P154683
THE WORLD BANK. (2020a) Living with Lead in Zambia: Creating Hope for the Children of Kabwe. Recuperado el 29 de December de 2020, de The World Bank: https://www.worldbank.org/en/news/feature/2020/12/17/living-with-lead-in-zambia-creating-hope-for-the-children-of-kabwe
THE WORLD BANK (2020b) Zambia - Mining and Environmental Remediation and Improvement Project (P154683) - Implementation Status & Results Report. Washingston, D.C: The World Bank, http://documents1.worldbank.org/curated/en/834491608582370666/ pdf/Disclosable-Version-of-the-ISR-Zambia-Mining-and-Environmental-Remediation-and-Improvement-Project-P154683-Sequence-No-08.pdf
THE WORLD HEALTH ORGANIZATION (2015) Lead exposure in African children: Contemporary sources and concerns. Brazaville, Republic of Congo: WHO Regional Office for Africa. ISBN: 978-0-86970-787-6
UCHIDA Y., BANDA K., TORU H., YOSHII Y., MUNTHALI K., MWANSA M., TAKAHASHI Y. (2017) Multidisciplinary field research in Kabwe, Zambia, towards better understanding of lead contamination of the city - A short report from a field survey. Doi: bioRxiv. 10.1101/096164
UNITED NATIONS ENVIRONMENT PROGRAMME (2010) Final review of scientific information on lead. Chemicals Branch, DTIE. Washington, DC: United Nations Environment Programme. https://wedocs.unep.org/bitstream/handle/20.500.11822/27635/ LeadRev.pdf
YABE J., NAKAYAMA S.M., IKENAKA Y., MUZANDU K., CHOONGO K., MAINDA G., UMEMURA T. (2013) Metal distribution in tissues of free-range chickens near a lead-zinc mine in Kabwe, Zambia. Environmental Toxicology and Chemistry, 32(1):189–192. https://doi.org/10.1002/etc.2029
YABE J., NAKAYAMA S.M., IKENAKA Y., MUZANDU K., ISHIZUKA M., UMEMURA T. (2011) Uptake of lead, cadmium and other metals in the liver and kidneys of cattle near a lead-zinc mine in Kabwe, Zambia. Environmental Toxicology and Chemistry, 30(8):1892–1897. https://doi.org/10.1002/etc.580
YABE J., NAKAYAMA S. M., IKENAKA Y., YOHANNES Y.B., BORTEY-SAM N., OROSZLANY B., ISHIZUKA M. (2015) Lead poisoning in children from townships in the vicinity of a lead-zinc mine in Kabwe, Zambia. Chemosphere, 119:941-947. https://doi.org/10.1016/j.chemosphere.2014.09.028
YAMADA, D., HIWATARI, M., HANGOMA, P., NARITA, D., MPHUKA, C., CHITAH, B., ISHIZUKA, M. (2020). Assessing the population wide exposure to lead pollution in Kabwe, Zambia: an econometric estimation based on survey data. Scientific Reports, 10: 15092. https://doi.org/10.1038/s41598-020-71998-5
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Copyright (c) 2021 Annette Lombe, John Pamba, George Kasali, Phenny Mwaanga, Rodrick S. Katete
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