September 12, 2025Environmental Science & Technology Letters

Potential Unintended Artifacts of Ascorbic and Sulfuric Acids for DBP Sample Preservation

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Authors

DPDai PengTianjin University SBSehnaz Sule Kaplan BekarogluSüleyman Demirel University TKTanju KaranfilClemson University

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Implication

This study evaluates how ascorbic acid and sulfuric acid affect disinfection byproduct quenching, suggesting that improper premixing leads to measurement bias.

Key Points

Premixing ascorbic acid and sulfuric acid before sampling significantly impacts disinfection byproduct levels.
Dichloroacetaldehyde and trichloroacetaldehyde formation increased with premixing, especially under chlorination.
Field data validated that premixing caused substantial bias in haloacetaldehyde measurements across treatment plants.
To ensure accurate disinfection byproduct levels, ascorbic acid should be added at sampling time, followed by pH adjustment.

Cite This Study

Peng et al. (2025) studied this question.

synapsesocial.com/papers/68d41ed9713b0b5dfea67f03 https://doi.org/10.1021/acs.estlett.5c00780

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Implication

This study evaluates how ascorbic acid and sulfuric acid affect disinfection byproduct quenching, suggesting that improper premixing leads to measurement bias.

Potential Unintended Artifacts of Ascorbic and Sulfuric Acids for DBP Sample Preservation

Discussion

Member takes

Implication

Key Points

Cite This Study

Potential Unintended Artifacts of Ascorbic and Sulfuric Acids for DBP Sample Preservation

Discussion

Member takes

Implication

Key Points

Cite This Study

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Also Consider