Evidence map›Paper›PMID 42347426›Full record

ArticleToxics2026

Spectral Characteristics of Dissolved Organic Matter and Their Associations with Heavy Metal Distribution in Multi-Media of a Typical Frozen Eutrophic Lake.

Zhijian Lv, Xuezheng Yu, Weiying Feng, Yu Qiao, Chia Min Ho, Jiayue Gao, Fanhao Song, Wenhuan Yang, Sundaravelpandian Kalaipandian

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Toxics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Zhijian LvSchool of Materials Science and Engineering, Beihang University, Beijing 100191, China.
Xuezheng YuSchool of Materials Science and Engineering, Beihang University, Beijing 100191, China.
Weiying FengSchool of Materials Science and Engineering, Beihang University, Beijing 100191, China.ORCID 0000-0001-8478-1171
Yu QiaoSchool of Materials Science and Engineering, Beihang University, Beijing 100191, China.
Chia Min HoSchool of Materials Science and Engineering, Beihang University, Beijing 100191, China.
Jiayue GaoSchool of Materials Science and Engineering, Beihang University, Beijing 100191, China.
Fanhao SongState Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
Wenhuan YangSchool of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, China.
Sundaravelpandian KalaipandianQueensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane City 4072, Australia.

Funding

National Natural Science Foundation of China 42177400the Key Research and Development and Technology Transfer Program of Inner Mongolia Autonomous Region in China 2025YFHH0145
6 · The paper itself

Abstract

In cold arid regions, the relationships between dissolved organic matter (DOM) characteristics and heavy metal distributions across ice, water, and sediment interfaces remain insufficiently resolved. This study characterized DOM spectral features and examined their associations with measured metal distributions in a typical frozen eutrophic lake using excitation-emission matrices coupled with parallel factor analysis (EEMs-PARAFAC), ultraviolet-visible absorption spectroscopy (UV-Vis), and Fourier-transform infrared spectroscopy (FTIR). Protein-like substances dominated ice DOM, whereas water and sediment-derived DOM contained more humified fluorescent components. Fluorescence indices confirmed a primarily biological origin across all media, with ice showing the highest autochthonous microbial contribution (BIX = 1.23) but the lowest humification (HIX = 0.26), suggesting a greater contribution of recently produced protein-like fluorescent DOM in the ice samples. Water DOM showed the highest average HIX (1.88), followed by sediment-derived DOM (0.61) and ice DOM (0.26). The measured hydrochemical conditions, including weak alkalinity, elevated total dissolved solids (TDS), and locally low dissolved oxygen, provide environmental context for differences in metal distributions. Exploratory Spearman analysis at 17 matched water stations identified the strongest DOM-metal associations for HIX-As (rho = 0.474,

Indexed as

cold arid regiondissolved organic matterEEMs-PARAFACice–water–sediment

Identifiers

PMID42347426
PMCPMC13307569

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.