Clarke Carl, Upson Sophie
Risk & Policy Analysts Ltd., Farthing Green House, 1 Beccles Road, Loddon, Norfolk NR14 6LT, UK.
Neurotoxicology. 2017 Jan;58:173-179. doi: 10.1016/j.neuro.2016.03.013. Epub 2016 May 13.
In 2013/14, Risk & Policy Analysts Ltd undertook the first global study on the socio-economic value of Manganese (Mn). Based on a top-down analysis of the key supply chains for Mn, it outlined the economic importance of Mn ore and alloys in terms of their direct and indirect economic value, as well as their effects on employment (jobs and wages). In 2013, global production of Mn ore was worth an estimated US$ 10.2-11.1 billion. Taking into account multiplier effects in the supply chain, the total economic value of Mn ore production globally in 2013 is estimated at US$ 21-23 billion. Direct employment related to Mn ore production is estimated at 44,000-78,000 people worldwide (with total wages estimated at US$ 2.7-4.6 billion per year), plus 33,000-59,000 jobs are created through indirect and induced employment effects. Meanwhile, the production of Mn alloy contributes around US$ 23 billion per year to the global economy (based on global production of around 19 million mt and 2013 market prices). In total, the value of Mn alloy production worldwide, taking into account downstream multiplier effects in the supply chain, is estimated at around US$ 146 billion per year. Direct employment related to Mn alloy production is estimated at 67,000-86,000 jobs worldwide (with total wages estimated at US$ 613-796 million per year), plus 217,000-278,000 jobs created through indirect & induced employment effects. In addition, numerous industries/sectors, products and/or applications are heavily dependent on Mn production and use. Mn is a critical raw material input and alloying element for the steel industry, for which there are no known alternatives. It can be argued that without Mn the entire steel industry (based on the current physico-chemical properties of steel) would not exist and, as a result, the value of the steel industry - an estimated US$ 964 billion to US$ 1446 billion in 2013 - is reliant on the continued supply and use of Mn. Besides its use in steel, Mn is also a critical element in the manufacture of dry cell and other batteries (notably, those used in electric vehicles) and the production of aluminium alloys (e.g. for beverage cans). Mn is also a micronutrient needed for plant growth and plays a vital role in agricultural production. It is also essential for maintaining the health and well-being of the human body and is used in food supplements and medicines. Furthermore, its use in developing applications (such as advanced steel products in automotive applications and batteries for electric vehicles) has the potential to provide socio-economic and environmental benefits in the future through enhancing vehicle safety and reducing fuel use/emissions.
2013/14年,风险与政策分析有限公司开展了关于锰(Mn)社会经济价值的首次全球研究。基于对锰关键供应链的自上而下分析,该研究概述了锰矿石和合金在直接和间接经济价值方面的经济重要性,以及它们对就业(工作岗位和工资)的影响。2013年,全球锰矿石产量估计价值102亿至111亿美元。考虑到供应链中的乘数效应,2013年全球锰矿石生产的总经济价值估计为210亿至230亿美元。与锰矿石生产直接相关的就业人数估计在全球为44000 - 78000人(每年总工资估计为27亿至46亿美元),另外通过间接和诱导就业效应创造了33000 - 59000个工作岗位。同时,锰合金生产每年为全球经济贡献约230亿美元(基于全球约1900万吨的产量和2013年市场价格)。总体而言,考虑到供应链下游的乘数效应,全球锰合金生产的价值估计每年约为1460亿美元。与锰合金生产直接相关的就业人数估计在全球为67000 - 86000个工作岗位(每年总工资估计为6.13亿至7.96亿美元),另外通过间接和诱导就业效应创造了217000 - 278000个工作岗位。此外,众多行业/部门、产品和/或应用严重依赖锰的生产和使用。锰是钢铁行业关键的原材料投入和合金元素,目前尚无已知替代品。可以说,没有锰,整个钢铁行业(基于钢铁当前的物理化学性质)将不复存在,因此,2013年估计价值9640亿至14460亿美元的钢铁行业的价值依赖于锰的持续供应和使用。除了用于钢铁,锰也是干电池和其他电池(特别是用于电动汽车的电池)制造以及铝合金生产(如用于饮料罐)中的关键元素。锰也是植物生长所需的微量营养素,在农业生产中发挥着至关重要的作用。它对于维持人体健康和福祉也必不可少,用于食品补充剂和药品中。此外,其在开发应用(如汽车应用中的先进钢铁产品和电动汽车电池)中的使用未来有可能通过提高车辆安全性和减少燃料使用/排放提供社会经济和环境效益。