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Rare earth elements unintentionally released from global industrial activities.

Jianghui Yun1, Qiuting Yang1, Guorui Liu2

  • 1State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resource and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.

Journal of Hazardous Materials
|October 15, 2024
PubMed
Summary

Rare earth elements (REY) in airborne fine particles (PM) from industrial fly ash pose health risks. Research on REY in PM, especially from coal-fired power plants, is crucial for environmental protection and reducing human exposure.

Keywords:
Biological effectsFly ashIndustrial particle mattersRare earth elements (REY)Tracer application

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Area of Science:

  • Environmental Science
  • Toxicology
  • Atmospheric Chemistry

Background:

  • Industrial activities release fly ash containing rare earth elements (REY) into the atmosphere as fine particulate matter (PM).
  • Limited data exists on the human health hazards and biological effects of REY in industrially sourced fine PM, particularly for the general population.
  • REY serve as effective tracers for identifying industrial sources of airborne PM.

Purpose of the Study:

  • To provide a comprehensive overview of current research on REY in fine PM from industrial processes.
  • To analyze the distribution, influencing factors, tracer applications, and biological effects of REY in fine PM, with a focus on coal-fired power plants.
  • To identify research gaps and suggest future directions for understanding and mitigating REY exposure.

Main Methods:

  • Literature review and synthesis of existing research on REY in fine PM.
  • Analysis of REY distribution characteristics and factors influencing their presence in PM.
  • Examination of REY's role as tracers for industrial PM and their known biological effects.

Main Results:

  • REY are present in fine PM from industrial fly ash, posing environmental and potential health risks.
  • REY's properties make them valuable tracers for industrial airborne PM, aiding in source identification.
  • Current knowledge on the specific health impacts of REY in fine PM for non-occupational populations is scarce.

Conclusions:

  • Further research is essential to fully understand the health implications of REY in fine PM.
  • Characterizing REY in industrial PM is vital for environmental monitoring and pollution control strategies.
  • Addressing the knowledge gaps concerning REY's biological effects will inform public health policies and reduce exposure risks.