Spatial Distribution and Ecotoxicological Assessment of Heavy Metals in Bottom Sediments of Yellow River from Inner Mongolia, China

Ren, Haoyu; Tao, Ling; Guo, Yuanyuan; Ren, Jiali

doi:10.1134/s0016702921100074

Cited by 2 publications

References 41 publications

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Surface sediment properties and heavy metal contamination assessment in typical urban areas from middle and upper reaches of Yellow River

Wang,

Tao,

Ren

et al. 2024

Preprint

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River sediments are considered a source and sink of potential heavy metal pollutants and can provide important information for the health of aquatic ecosystems. Heavy metal pollution has become a serious problem in global river systems and adversely affects humans through the food chain.The contents of eight types of heavy metals (Fe, Mn, Cu, Ni, Zn, Cr, Pb, and Cd) in the sediments of six typical urban areas in the middle and upper reaches of the Yellow River were analyzed to explore the spatial distribution characteristics between cities and evaluate the degree of pollution.The main research objectives of this study were as follows: (1) to analyze the distribution characteristics of heavy metals in sediments along rivers in six typical urban areas to evaluate the degree of heavy metal pollution in sediments; (2) to reveal the enrichment characteristics and pollution level of eight types of heavy metals in six typical urban areas in the middle and upper reaches of the Yellow River; (3) to propose the ecological risk of heavy metals in sediments of six typical urban areas in the middle and upper reaches of the Yellow River using the potential ecological risk index method.

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Surface sediment properties and heavy metal contamination assessment in typical urban areas from middle and upper reaches of Yellow River

Wang,

Tao,

Ren

et al. 2024

Preprint

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Source Apportionment and Probabilistic Ecological Risk of Heavy Metal(loid)s in Sediments in the Mianyang Section of the Fujiang River, China

2022

Minerals

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The Mianyang section of the Fujiang River is Mianyang City’s main source of drinking water; therefore, we must ascertain this aquatic ecosystem’s heavy metal(loid)s (HMs) pollution status to protect the health of local residents. We examined 27 surface sediment samples using X-ray fluorescence spectrometry for 10 widely concerned HMs. We applied spatial interpolation, the positive matrix factorization, and a potential ecological risk index to determine the spatial distribution, source, and potential ecological risk of HMs in the sediment, respectively. Our results showed that Mn, Co, Cr, As, Zn, and Pb were disturbed by human activities. The levels of HM content at different sites were different due to the influence of urban human activities. Our source apportionment results showed that As, Cu, Pb, and Mn principally originated from mixed sources of industry and traffic; Ba and Co were chiefly derived from architectural sources; Ni, Zn, and V were mainly from natural sources; and Cr originated from industrial sources. Mixed, architectural, natural, and industrial sources account for 25.62%, 25.93%, 24.52%, and 23.93% of the total HM content, respectively. The HMs were of low ecological risk, which were mainly caused by As and Co. In our study, the mixed source was the priority anthropogenic source, and As and Co were the priority elements for further risk control in the Mianyang section of the Fujiang River.

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Spatial Distribution and Ecotoxicological Assessment of Heavy Metals in Bottom Sediments of Yellow River from Inner Mongolia, China

Cited by 2 publications

References 41 publications

Surface sediment properties and heavy metal contamination assessment in typical urban areas from middle and upper reaches of Yellow River

Surface sediment properties and heavy metal contamination assessment in typical urban areas from middle and upper reaches of Yellow River

Source Apportionment and Probabilistic Ecological Risk of Heavy Metal(loid)s in Sediments in the Mianyang Section of the Fujiang River, China

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