Sustainability of artisanal mining of cobalt in DR Congo
Open accessAbstract
The sustainability of cobalt is an important emerging issue because this critical base metal is an essential component of lithium-ion batteries for electric vehicles. More than half the world's cobalt mine production comes from the Katanga Copperbelt in DR Congo, with a substantial proportion (estimated at 15-20%) being extracted by artisanal miners. Here we show, in a case study performed in the town of Kolwezi, that people living in a neighbourhood that had been transformed into an artisanal cobalt mine, had much higher levels of cobalt in urine and blood than people living in a nearby control area. The differences were most pronounced for children, in whom we also found evidence of exposure-related oxidative DNA damage. It was already known that industrial mining and processing of metals have led to severe environmental pollution in the region. This field study provides novel and robust empirical evidence that the artisanal extraction of cobalt that prevails in the DR Congo may cause toxic harm to vulnerable communities. This strengthens the conclusion that the currently existing cobalt supply chain is not sustainable.
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The extensive exploitation of Li resources raises concerns about its environmental impacts.
“While the primary aim of using Li in electric vehicles is to improve the sustainability of transportation (Agrawal and Rajapatel 2020, Wang et al 2023), the extensive exploitation of Li resources, raises concerns about its environmental impacts (Agusdinata et al 2018, Banza Lubaba Nkulu et al 2018).”
From Environmental impacts of lithium supply chains from Australia to China (2024) · cites this paper as Banza Lubaba Nkulu et al 2018
The Abstract and Discussion link cobalt to lithium-ion batteries for electric vehicles and document environmental degradation from cobalt mining in DR Congo. They do not examine exploitation of lithium resources or its environmental impacts; the source supports the concern for a related battery material, not Li itself. (LLM, conf=0.84)
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- Authors
- Banza Lubaba Nkulu, C., Casas, L., Haufroid, V., De Putter, T., Saenen, N. D., Kayembe-Kitenge, T., Musa Obadia, P., Kyanika Wa Mukoma, D., Lunda Ilunga, J.-M., Nawrot, T. S., Luboya Numbi, O., Smolders, E., & Nemery, B.
- Affiliations
- UCLouvain (BE)
- Hasselt University (BE)
- KU Leuven (BE)
- ORCID
- Venue
- Nature Sustainability
- Published
- 2018-09-14
- Volume
- 1
- Issue
- 9
- Pages
- 495-504
- ISSN
- 2398-9629 (ISSN-L)
- PMC
- PMC6166862
- OpenAlex
- W2889657886
- Cited by
- 537
- References
- 38
- Citations by year
- 2026: 73 · 2025: 79 · 2024: 76 · 2023: 88 · 2022: 79 · 2021: 74 · 2020: 49 · 2019: 18 · 2018: 1
- FWCI
- 28.43
- Type
- journal article
- Language
- en
- Open access
- green
- europepmc.org
- Licence
- Locations
- Nature Sustainability (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Lirias (submittedVersion, other-oa)
- RePEc: Research Papers in Economics (submittedVersion)
- DIAL (Catholic University of Leuven) (submittedVersion, other-oa)
- Document Server@UHasselt (UHasselt) (submittedVersion)
- Funders
- Fonds Wetenschappelijk Onderzoek
- Vlaamse Interuniversitaire Raad (ZRDC2015PR090)
- Vlaamse regering
- VLIRUOS
- Topics
- Physical Sciences › Engineering › Building and Construction › Mining and Resource Management
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Heavy Metal Exposure and Toxicity
- Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
- Keywords
- cobalt exposure, oxidative DNA damage, child health, Kolwezi, lithium-ion batteries, critical metals, environmental pollution
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