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Anthropogenic antimony flow analysis and evaluation in China
Jianwen Chu1, Jiansu Mao1, Mengchang He1
1State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China.
The Science of the Total Environment
|June 1, 2019
Summary
China
Area of Science:
- Environmental Science
- Resource Management
- Material Flow Analysis
Background:
- China faces critical antimony (Sb) resource scarcity and escalating environmental pollution.
- The global antimony market is influenced by China's resource status and emission challenges.
Purpose of the Study:
- To quantify antimony (Sb) flows within China's lithosphere, anthroposphere, and biosphere.
- To assess the sustainability of antimony resource utilization and identify emission hotspots.
Main Methods:
- Substance Flow Analysis (SFA) was employed to track antimony from 2006 to 2016.
- Analysis focused on ore depletion risks, import dependency, and net export rates.
Main Results:
- China's antimony ore reserves face depletion risks, with increasing concentrate imports (30.22% by 2016).
- The antimony industry exhibits low resource efficiency and recycling ratios.
- Significant antimony emissions (1915.58 Gg) were released into the biosphere from 2006-2016, primarily from manufacturing and usage.
Conclusions:
- Urgent measures are needed to address China's antimony resource depletion and environmental pollution.
- Improving resource efficiency and reducing emissions are crucial for sustainable antimony management.
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