Evidence map›Paper›PMID 32592051›Full record

ArticleEnvironmental science and pollution research international2020

Chemical fractionation and risk assessment of surface sediments in Luhun Reservoir, Luoyang city, China.

Mengmeng Wang, Gangfu Song, Chao Zhang, Fujie Zhai, Wenchuan Wang, Zhixin Song

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Article in Environmental science and pollution research international, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

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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

6 authors.

Mengmeng WangState Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 10085, People's Republic of China.
Gangfu SongSchool of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou, 450046, People's Republic of China. sgf@ncwu.edu.cn.
Chao ZhangState Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 10085, People's Republic of China. chaozhang@rcees.ac.cn.
Fujie ZhaiState Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 10085, People's Republic of China.
Wenchuan WangSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou, 450046, People's Republic of China.
Zhixin SongSchool of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou, 450046, People's Republic of China.

Funding

Natural Science Foundation of China 41907267
6 · The paper itself

Abstract

To understand the potential risks of heavy metals, including their bioavailability and toxicity, 15 surface sediment samples were collected from Luhun Reservoir in Luoyang city, China. Total concentrations and chemical fractions of Cd, Cr, Cu, Ni, Pb, and Zn were analyzed. Various rating methods were used to evaluate the degree, risk, and toxicity of the heavy metal pollution. Results showed that Cd and Pb were preferentially associated with exchangeable (55.77-69.76%) and reducible (53.54-69.43%) fractions, respectively, and therefore exhibited high potential availability. Cr (57.14-86.56%) and Ni (32.21-72.77%) occurred primarily in the residual fraction. Metal concentrations in the effective fraction of the sediment decreased in the order: Cd (96.32%) > Pb (91.61%) > Cu (64.54%) > Zn (57.23%) > Ni (41.51%) > Cr (21.68%). Risk assessment indicated that the risk for Cd is extremely high (62.96%); Cu, Pb, and Zn are ranked as medium risk. Based on the potential ecological risk index, these metals (especially Cd) showed higher potential risk near the dam region. Toxic unit values (2.89-6.05) in more than 60% of sediment sites exceeded a value of 4, and Pb had a relatively higher contribution (1.06-2.65). Cd and Pb are the main contaminants in sediments of Luhun Reservoir and should be paid more attention in the future.

Indexed as

Chemical FractionationChinaCitiesEnvironmental MonitoringGeologic SedimentsMetals, HeavyRisk AssessmentWater Pollutants, ChemicalMetals, HeavyWater Pollutants, ChemicalChemical fractionHeavy metalLuhun ReservoirRisk assessmentSediment

Identifiers

PMID32592051

What OpenQuestion holds

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Registered trials

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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.