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[Screening Method of Priority Control Pollutants in Groundwater Based on Contamination Assessment].

Peng Zhao1, Jiang-Tao He1, Man-Li Wang1

  • 1Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences(Beijing), Beijing 100083, China.

Huan Jing Ke Xue= Huanjing Kexue
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A new contamination assessment method effectively screens priority groundwater pollutants in data-scarce regions. This approach identified 10 key chemical parameters in Golmud, China, offering a reliable alternative to complex risk assessments.

Keywords:
contamination assessmentenvironmental managementindex classificationpriority control pollutants in groundwaterrisk assessment

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Area of Science:

  • Environmental Science
  • Hydrogeology
  • Analytical Chemistry

Context:

  • Groundwater pollution poses significant environmental and health risks.
  • Effective environmental management requires efficient screening of priority control pollutants.
  • Regions with limited basic information face challenges in groundwater pollution assessment.

Purpose:

  • To develop and validate a simple, data-efficient screening method for priority groundwater pollutants.
  • To establish a contamination assessment-based system suitable for regions with weak basic information.
  • To compare the contamination assessment method with a risk assessment-based system.

Summary:

  • A novel screening method for priority groundwater pollutants based on contamination assessment was developed.
  • The method utilizes pollution index classification and frequency score superposition.
  • Applied in Golmud, China, it identified TDS, total hardness, chloride, sulfate, sodium, fluorine, total iron, pyrene, phenanthrene, and aluminum as priority pollutants.
  • Results were validated against a risk assessment method, showing high reliability.

Impact:

  • Provides a practical tool for environmental management in data-limited areas.
  • Enhances the ability to prevent and control groundwater pollution.
  • Offers a simpler, more accessible alternative to complex risk assessment models for pollutant screening.