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Setup of Capillary Electrophoresis-Inductively Coupled Plasma Mass Spectrometry (CE-ICP-MS) for Quantification of Iron Redox Species (Fe(II), Fe(III))
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Patterns of iron use in societal evolution.

Daniel B Müller1, Tao Wang, Benjamin Duval

  • 1Center for Industrial Ecology, School of Forestry and Environmental Studies, Yale University, 205 Prospect Street, New Haven, Connecticut 06511, USA. Daniel.Mueller@ntnu.no

Environmental Science & Technology
|December 3, 2010
PubMed
Summary
This summary is machine-generated.

Global iron stocks are plateauing in industrialized nations, reaching 8-12 tons per capita. This saturation highlights a future potential for recycling and resource management, impacting climate change mitigation strategies.

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Area of Science:

  • Materials Science
  • Environmental Science
  • Economics

Background:

  • Industrialized nations exhibit distinct patterns in their accumulation of iron stocks.
  • Understanding material flow is crucial for resource management and environmental policy.

Purpose of the Study:

  • To analyze iron stock patterns in use across six industrialized countries.
  • To estimate contemporary iron stocks in other nations based on economic activity.
  • To assess the implications of iron stock saturation for resource use and climate change.

Main Methods:

  • Dynamic material flow modeling was employed to analyze iron stock patterns.
  • Iron stock per economic activity was used to estimate stocks in non-analyzed countries.

Main Results:

  • Iron stocks have plateaued at 8-12 tons per capita in the US, France, and UK.
  • Japan, Canada, and Australia have not yet reached this plateau.
  • The global average iron stock is 2.7 tons per capita.
  • Reaching 10 tons per capita could deplete current reserves and necessitate a shift to secondary sources.

Conclusions:

  • Iron stock saturation in industrialized countries indicates a long-term potential for increased recycling of domestic scrap.
  • Developing countries with growing stocks have a lower immediate potential for domestic recycling and associated greenhouse gas savings.
  • Current climate change discussions may be underestimating the role of material stock dynamics in resource management.