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Antimony pollution in China.

Mengchang He1, Xiangqin Wang, Fengchang Wu

  • 1State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China. hemc@bnu.edu.cn

The Science of the Total Environment
|July 12, 2011
PubMed
Summary
This summary is machine-generated.

Antimony (Sb) contamination from mining and smelting is widespread in China, particularly in Guangxi, Hunan, Yunnan, and Guizhou provinces. High Sb levels in soil, water, and plants pose significant risks to human health in affected areas.

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Area of Science:

  • Environmental Science
  • Geochemistry
  • Toxicology

Background:

  • Antimony (Sb) is a naturally occurring element released into the environment through mining, smelting, and coal combustion.
  • China possesses significant antimony deposits, with major concentrations in Guangxi, Hunan, Yunnan, and Guizhou provinces.
  • Industrial activities have led to substantial environmental antimony contamination, particularly around mining and smelting sites.

Purpose of the Study:

  • To provide an integrated overview of antimony distribution in Chinese environments.
  • To assess the human health risks associated with antimony contamination in mining and smelting areas.
  • To identify key sources and pathways of environmental antimony pollution in China.

Main Methods:

  • Review and synthesis of existing data on antimony concentrations in soil, sediment, water, and plants across China.
  • Analysis of geographical distribution of antimony deposits and contamination hotspots.
  • Evaluation of plant uptake of antimony and potential human exposure routes.

Main Results:

  • Antimony concentrations in soils varied, with some provinces showing extreme enrichment (Yunnan, Guangxi, Guizhou, Hunan).
  • Elevated antimony levels were observed in water and sediments near mining and smelting areas, significantly exceeding those in remote locations.
  • Plants in contaminated soils accumulated high levels of antimony, surpassing tolerable limits and indicating a potential human health threat.

Conclusions:

  • Antimony mining and smelting are primary drivers of severe environmental contamination in specific Chinese regions.
  • The widespread presence of antimony in soil, water, and biota poses a considerable risk to local ecosystems and human health.
  • Effective management strategies are crucial to mitigate antimony pollution and protect public health in affected areas.