Chemodiversity of coastal seawater dissolved organic matter shaped by wastewater treatment plant effluent in Tokyo Bay, Japan

IF 3.1 3区地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS

Applied Geochemistry Pub Date : 2025-02-01 DOI:10.1016/j.apgeochem.2025.106292

Yanhui Cheng , Jibao Liu , Manabu Fujii , Qing-Long Fu

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引用次数: 0

Abstract

The wastewater treatment plants (WWTPs) effluent can affect the chemodiversity of dissolved organic matter (DOM) in the aquatic systems. In this study, Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) was employed to reveal the effluence of WWTPs on the chemodiversity of coastal seawater DOM in Tokyo Bay, Japan. The average number of compounds identified in the background group with minor anthropogenic perturbation was 63.9% for the coastal seawater samples. Compared with the background samples, CHOS compounds were the predominant fraction of DOM in some coastal seawater receiving vast effluent from WWTPs. Additionally, the artificial sweetener sucralose was identified in coastal seawater samples. The intensity percentages of CHOS molecules in the coastal seawater linearly increased with the number of received WWTPs (R² = 0.786, P < 0.05). These findings suggested that DOM molecular composition in Tokyo Bay coastal seawater had been highly influenced by upstream WWTPs effluents and highlighted the great potential of FT-ICR MS in tracing anthropogenically derived molecular signatures in the environments.

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来源期刊

Applied Geochemistry 地学-地球化学与地球物理

CiteScore

6.10

自引率

8.80%

发文量

272

审稿时长

65 days

期刊介绍： Applied Geochemistry is an international journal devoted to publication of original research papers, rapid research communications and selected review papers in geochemistry and urban geochemistry which have some practical application to an aspect of human endeavour, such as the preservation of the environment, health, waste disposal and the search for resources. Papers on applications of inorganic, organic and isotope geochemistry and geochemical processes are therefore welcome provided they meet the main criterion. Spatial and temporal monitoring case studies are only of interest to our international readership if they present new ideas of broad application. Topics covered include: (1) Environmental geochemistry (including natural and anthropogenic aspects, and protection and remediation strategies); (2) Hydrogeochemistry (surface and groundwater); (3) Medical (urban) geochemistry; (4) The search for energy resources (in particular unconventional oil and gas or emerging metal resources); (5) Energy exploitation (in particular geothermal energy and CCS); (6) Upgrading of energy and mineral resources where there is a direct geochemical application; and (7) Waste disposal, including nuclear waste disposal.