Evidence map›Paper›PMID 40763140›Full record

ArticlePloS one2025

Exploring dissolved organic matter diversity and water quality in the Tajan River using PARAFAC techniques.

Mohammad-Ali Zazouli, Zeinab Gholami, Yalda Hashempour, Esmaeil Babanezhad, Afsaneh Fendereski

Abstract read
In one paragraph

Article in PloS one, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

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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

5 authors.

Mohammad-Ali ZazouliDepartment of Environmental Health Engineering, School of Health, Mazandaran University of Medical Sciences, Sari, Iran.
Zeinab GholamiDepartment of Environmental Health Engineering, School of Health, Mazandaran University of Medical Sciences, Sari, Iran.
Yalda HashempourDepartment of Environmental Health Engineering, School of Health, Mazandaran University of Medical Sciences, Sari, Iran.ORCID https://orcid.org/0000-0002-3557-4472
Esmaeil BabanezhadDepartment of Environmental Health Engineering, School of Health, Mazandaran University of Medical Sciences, Sari, Iran.
Afsaneh FendereskiDepartment of Statistical, School of Health, Mazandaran University of Medical Sciences, Sari, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Rivers carry dissolved organic matter (DOM), which influences nutrient cycling, pollutant transport, and the distribution of microbial communities within aquatic ecosystems. This research investigates dissolved organic carbon (DOC) diversity and its impact on water quality within the Tajan River watershed. Sampling was conducted from March 2023 to February 2024 at ten stations, where key parameters including temperature, dissolved oxygen (DO), turbidity, electrical conductivity (EC), chemical oxygen demand (COD), DOC, total phosphorus (TP), total nitrogen (TN), and chlorophyll-a were measured using standard methods. Fluorescence was measured in the spectral range 200-550 nm excitation and 200-450 nm emission. Seasonal analysis revealed that EC, temperature, turbidity, TP, and specific ultraviolet absorbance (SUVA) were lower in winter; while COD and DOC concentrations were lowest in spring. The highest levels of TN and chlorophyll-a occurred in spring. Station 7 showed elevated concentration of EC, temperature, DOC, COD, and TP compared to other sites. Using the PARAFAC technique, seven fluorescence component (C1-C7) were identified, with C1 representing visible humic substances. C1 exhibited strong positive relationships with temperature, chlorophyll-a, TN, TP, UV254, and COD. The EEM-PARAFAC method effectively evaluates the link between the fluorescent components of DOM and water quality parameters, demonstrating its potential for surface water quality monitoring.

Indexed as

Environmental MonitoringOrganic ChemicalsRiversWater QualityBiological Oxygen Demand AnalysisCarbonChlorophyllChlorophyll ANitrogenOxygenPhosphorusSeasonsTemperatureCarbonChlorophyllChlorophyll ANitrogenOrganic ChemicalsOxygenPhosphorus

Identifiers

PMID40763140
PMCPMC12324095

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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.