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Environ Sci Technol ; 49(2): 974-81, 2015 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-25453363

RESUMO

Recent legislation has focused attention on the supply chains of tin, tungsten, tantalum, and gold (3TG), specifically those originating from the eastern part of the Democratic Republic of Congo. The unique properties of these so-called "conflict minerals" lead to their use in many products, ranging from medical devices to industrial cutting tools. This paper calculates per product use of 3TG in several information, communication, and technology (ICT) products such as desktops, servers, laptops, smart phones, and tablets. By scaling up individual product estimates to global shipment figures, this work estimates the influence of the ICT sector on 3TG mining in covered countries. The model estimates the upper bound of tin, tungsten, tantalum, and gold use within ICT products to be 2%, 0.1%, 15%, and 3% of the 2013 market share, respectively. This result is projected into the future (2018) based on the anticipated increase in ICT device production.


Assuntos
Ouro/análise , Mineração/tendências , Tantálio/análise , Estanho/análise , Tungstênio/análise , República Democrática do Congo , Eletrônica , Ouro/provisão & distribuição , Modelos Teóricos , Tantálio/provisão & distribuição , Estanho/provisão & distribuição , Tungstênio/provisão & distribuição
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