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Related Concept Videos

Sampling Methods: Sample Types01:18

Sampling Methods: Sample Types

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Sampling materials are classified into three main types: solid, liquid, and gas.
Solid samples include a variety of substances, such as sediments from water bodies, soil, metals, and biological tissues. Two standard methods for extracting sediments from water bodies are grab sampling and piston coring. Grab sampling involves using a device to collect a discrete sediment sample from the bottom of a water body with minimal disturbance. Grab samples do not always represent the entire area due to...
1.0K

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Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris
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Sampling and processing methods of microplastics in river sediments - A review.

Yasmin Adomat1, Thomas Grischek1

  • 1Faculty of Civil Engineering, University of Applied Sciences Dresden, 01069 Dresden, Germany.

The Science of the Total Environment
|December 10, 2020
PubMed
Summary

Knowledge on microplastics (MP) in river sediments is limited due to non-standardized methods. This review highlights techniques and emphasizes the need for standardization to accurately assess MP pollution and protect freshwater ecosystems.

Keywords:
FreshwaterMicroplasticsProcessingSamplingSediments

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Area of Science:

  • Environmental Science
  • Ecotoxicology
  • Analytical Chemistry

Background:

  • Microplastics (MP) pose risks to ecosystems, but research on their presence in freshwater sediments, particularly rivers, lags behind marine environments.
  • Existing studies on MP in sediments and soils lack standardized sampling and processing methods, hindering reliable data comparison.
  • Quality assurance and control (QA/QC) procedures are vital for accurate MP quantification.

Purpose of the Study:

  • To review and evaluate reports on microplastic occurrence in river sediments.
  • To assess current sampling and sample processing techniques for microplastics in river sediments.
  • To identify challenges and propose solutions for accurate microplastic quantification and monitoring.

Main Methods:

  • Systematic literature review of over 47 articles on microplastics in river sediments.
  • Analysis of various sampling techniques, equipment, and processing approaches.
  • Evaluation of quality assurance and quality control (QA/QC) procedures in microplastic analysis.

Main Results:

  • Significant variability exists in reported microplastic concentrations due to diverse methodologies.
  • Current quantification techniques can lead to overestimation or underestimation of microplastic levels.
  • Lack of standardized methods impedes the comparability and reliability of microplastic data in river sediments.

Conclusions:

  • Standardization of sampling and processing methods is essential for accurate microplastic monitoring in river sediments.
  • Harmonized techniques will enable reliable data for effective environmental management and policy decisions.
  • Consistent methodologies are crucial for safeguarding the ecological integrity of freshwater environments from microplastic pollution.