Evidence map›Paper›PMID 36901474›Full record

ArticleInternational journal of environmental research and public health2023

Improved Method of Background Value Determination for Sb and Cd in Freshwater Sediment-Insights from Controlling Factors on Spatial Variability.

Lingchen Mao, Ruijie Wang, Kai Kang, Feipeng Li, Zheng Zhang, Qingyang Che, Qinyi Tang

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Article in International journal of environmental research and public health, 2023. 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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5 · Who and what money

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7 authors.

Lingchen MaoSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
Ruijie WangSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
Kai KangSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
Feipeng LiSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
Zheng ZhangSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
Qingyang CheSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
Qinyi TangSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.

Funding

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6 · The paper itself

Abstract

Variability in the distribution of natural total Sb and Cd in freshwater sediments leads to difficulties in background value (BV) determination. This study aimed to establish a method to determine BV more accurately by investigating the vertical distribution of Sb and Cd in sediment cores collected from a typical river in alluvial plain in China and revealed the factors that control the variation of Sb and Cd BV, which has not been studied in alluvial freshwater sediment. The results suggested that uncontaminated samples for BV calculation should be determined by statistical analysis as human and natural disturbance led to high variation in contamination depth, from <5 cm to >55 cm. The sequential chemical extraction method showed a considerable amount of non-residual fractions of Sb and Cd, which accounted for 48% and 43% of the total, respectively. Acid extractable Cd (16%) was associated to the limestone geology in the area. Fine particles which governed by sedimentary environment contained more natural Sb and Cd, as strong positive correlation was found between clay content and Sb concentration (r = 0.89,

Indexed as

Metals, HeavyWater Pollutants, ChemicalCadmiumChinaEnvironmental MonitoringGeologic SedimentsHumansRisk AssessmentRiversCadmiumMetals, HeavyWater Pollutants, Chemicalgeoaccumulation indexparent materialsedimentary environmentsequential chemical extraction

Identifiers

PMID36901474
PMCPMC10001654

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