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Haloacetic Acids Formation Potential of Tropical Peat Water DOM Fractions and Its Correlation with Spectral Parameters

Abstract

Tropical peat water dissolved organic matter (DOM) fractions spectral parameters correlate with the formation of carcinogenic disinfection by-products (DBPs), haloacetic acids (HAAs). Peat water DOM has been fractionated using Superlite DAX-8, Amberlite XAD-4, and Amberlite IRA-958 resins to separate hydrophobic acid (HPOA), transphilic (TPH), hydrophilic-charged (HPIC), and hydrophilic-neutral (HPIN). The formation potential of HAA was determined using the total concentration of 5 HAAs (HAA5). The DOM characteristic was determined using dissolved organic carbon (DOC) and ultraviolet–visible (UV–Vis) absorbance was evaluated at 200–700 nm. The HPOA fraction dominates the DOM of tropical peat water with a 40% DOC concentration when the HPIC fraction was the slighter. The spectral absorbance ratios (E4/E6 and A253/A203) and spectral slopes (S206–213, S251–280, S281–295, and S>295) have a strong positive correlation with HAA5 formation potential (HAA5FP). Similarly, the absorbance ratio A210/A254 and spectral slopes S200–205 are strongly correlated to HAA5FP, but in a negative direction. In contrast, the E2/E3 and A280/A350 spectral ratio, and spectral slopes (S214-227, and S228–250), has a weaker correlation with HAA5FP. The E2/E3 and A280/A350 ratios and S251–280 S200–205 spectral slope show a strong relationship with the brominated HAA5FP (B-HAA5FP). The spectral parameters of DOM fractions can be used as surrogate parameters of HAA5FP of peat water.

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Acknowledgements

The authors express gratitude to the Integrated Laboratory, Poltekkes Kemenkes Bandung, for providing a laboratory analysis facility.

Funding

This research was funded by The Indonesia Endowment Fund for Education (Lembaga Pengelola Dana Pendidikan/LPDP), Ministry of Finance Indonesia, Grant No. 201705210110920.

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Muammar Qadafi: conceptualization, methodology, investigation, data analysis, writing—original draft, project administration.

Suprihanto Notodarmojo: Supervision, conceptualization.

Yuniati Zevi: Supervision, validation, investigation.

Corresponding author

Correspondence to Muammar Qadafi.

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The authors declare no competing interests.

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Qadafi, M., Notodarmojo, S. & Zevi, Y. Haloacetic Acids Formation Potential of Tropical Peat Water DOM Fractions and Its Correlation with Spectral Parameters. Water Air Soil Pollut 232, 319 (2021). https://doi.org/10.1007/s11270-021-05271-4

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  • DOI: https://doi.org/10.1007/s11270-021-05271-4

Keywords

  • Haloacetic acids
  • Dissolved organic matter fractions
  • Spectral parameters
  • Tropical peat water