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Related Experiment Video

Updated: Aug 10, 2025

Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies

Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies

Published on: July 1, 2016

Waterborne asbestos: Good practices for surface waters analyses.

Chiara Avataneo^1,2, Silvana Capella^1,2, Mariagrazia Luiso³

¹Department of Earth Sciences, University of Turin, Turin, Italy.

Frontiers in Chemistry

|February 10, 2023

Summary

This study found that current analytical methods for detecting asbestos in water samples lack reproducibility. Improving these methods is crucial for accurate environmental monitoring and public health protection regarding asbestos exposure.

Keywords:

analytical methods asbestos analysis guidelines surface waters waterborne asbestos

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Area of Science:

Environmental Science
Analytical Chemistry
Mineralogy

Background:

Asbestos monitoring has historically focused on air, with limited attention to water matrices.
Waterborne asbestos poses non-conventional exposure risks and can be a source of airborne asbestos through water-to-air migration.
Regulatory approaches for studying waterborne asbestos are fragmented due to scarce research.

Purpose of the Study:

To test the reliability and interlaboratory reproducibility of an existing analytical method for natural waters.
To identify error-prone steps in the analytical protocol for waterborne asbestos detection.
To propose best practices for reliable asbestos analysis in surface water samples.

Main Methods:

Scanning Electron Microscopy (SEM) analysis of a standard chrysotile sample in a water matrix.
Mimicking stream water conditions as per the Piedmont Environmental Protection Agency protocol.
Testing the method with different operators and analytical setups to assess reproducibility.

Main Results:

Three datasets generated from the same sample exhibited low interlaboratory reproducibility.
Variability in results suggests potential issues with the current analytical protocol.
Specific analytical steps contributing to discrepancies were identified and discussed.

Conclusions:

The existing analytical method for waterborne asbestos shows poor reproducibility.
Standardization and refinement of analytical protocols are necessary for reliable detection.
Proposed good practices aim to improve regulatory consistency and accuracy in asbestos monitoring in water.