Cited by 30Water Treatment and DisinfectionAquatic Ecosystems and Phytoplankton DynamicsMarine and coastal ecosystems

Dynamic Changes of Disinfection Byproduct Precursors following Exposures of Microcystis aeruginosa to Wildfire Ash Solutions

Tsai, Kuo-Pei, Uzun, Habibullah, Karanfil, Tanju, Chow, Alex T.·2017·Environmental Science & Technology

Abstract

Wildfires can elevate dissolved organic matter (DOM) levels due to ash input and algal growth in source waters, and consequently impacting disinfection byproduct (DBP) formation in finished water; however, it remains unclear how quality and quantity of overall allochthonous and autochthonous DOM as well as associated DBP formation are changed during an entire algal life cycle. Microcystis aeruginosa was cultured in the medium containing low and high concentrations [10% and 65% (v/v)] of black and white ash water extracts (BE and WE) to study dynamic changes of carbonaceous, nitrogenous, and oxygenated DBP precursors during algal growth. DOM was characterized by absorption and fluorescence spectroscopy and chlorination/chloramination-based DBP formation experiments. Throughout the entire experiment, C-DBP precursors in the control ranged from 2.41 to 3.09 mmol/mol-C. In the treatment with 10% BE, the amount of C-DBP precursors decreased from 6.8 to 3.0 mmol/mol-C at initial-exponential phase then increased to 4.2 mmol/mol-C at death phase. The same trend was observed for O-DBP precursors. However, these dynamic changes of C- and O-DBP precursors exhibited opposite patterns in 65% extracts. Similar patterns were also observed in the WE treatments. On the other hand, N-DBP precursors continuously declined in all treatments. These results indicate that postfire ash loading and algal bloom stage may significantly affect DBP formation in source water.

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Crossref · 10.1021/acs.est.7b01541

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  • Release of soluble elements and particulate matter from eroded ash and underlying soil into aquatic systems following fires can cause increases in water turbidity, pH, organic matter, suspended sediment and conductivity and depletion of dissolved oxygen.

    “The release of soluble elements and particulate matter from eroded ash and underlying soil into aquatic systems following fires can cause increases in water turbidity, pH, organic matter, suspended sediment and conductivity and depletion of dissolved oxygen, among other effects (Smith et al. 2011;Tsai et al. 2017).”

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Authors
Tsai, K.-P., Uzun, H., Karanfil, T., & Chow, A. T.
Affiliations
Clemson University (US)
Corresponding author
Chow, Alex T.
Venue
Environmental Science & Technology
Published
2017-07-19
Volume
51
Issue
15
Pages
8272-8282
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2725957603
Cited by
30
References
85
Citations by year
2026: 2 · 2025: 4 · 2024: 5 · 2023: 2 · 2022: 2 · 2021: 1 · 2020: 6 · 2019: 6 · 2018: 2
FWCI
2.06
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science & Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of Food and Agriculture (SCN-2013-02784)
  • U.S. Environmental Protection Agency (R835864)
  • Joint Fire Science Program (14-1-06-11, 14-1-06-19)
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Water Treatment and Disinfection
  • Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
Keywords
disinfection by-product precursors, Microcystis aeruginosa, wildfire ash, dissolved organic matter, algal blooms, chlorination, chloramination, algal life cycle, raw water quality
MeSH terms
Disinfection, Water Pollutants, Chemical, Water Purification, Microcystis, Halogenation

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