Distribution and contamination assessment of heavy metals in surface sediments of the Luanhe River Estuary, northwest of the Bohai Sea

Liu, Jinqing; Yin, Ping; Chen, Bin; Gao, Fei; Song, Huacan; Li, Meina

doi:10.1016/j.marpolbul.2016.05.020

Cited by 110 publications

(44 citation statements)

References 38 publications

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“…There were 54.5% and 31.8% sampling sites with the concentrations of Cr and Cu varying Class 1 and Class 2. According to the TEL and PEL, the adverse biological effect cannot occur when the concentrations of heavy metals are below the TEL, but it may emerge if the values reach the PEL [28,57]. Our results showed that the concentrations of Cd, Cr, Cu, Ni, Pb, and Zn in the sediments below the TEL accounted for 100%, 18.2%, 4.6%, 0%, 100%, and 9.1% of the total sampling sites, respectively.…”

Section: Contamination Assessment Of Heavymentioning

confidence: 67%

“…In addition, 59.1% of the sampling sites showed the Ni concentrations exceeding the TEL (Table 4). The EF > 1.5 commonly indicates a marked enrichment of heavy metals in the sediments [1,28]. As shown in Table 4, the EF of Cd were higher than 2.5 with the average of 3.44 suggesting a clear contamination in the sediments, whereas the sediments were not contaminated by Cu with its EF of 0.75-1.46.…”

Section: Contamination Assessment Of Heavymentioning

confidence: 88%

“…The toxicity of heavy metals is the priority in aquatic ecosystems [26][27][28]. In order to control the contamination of marine sediments and protect marine biological resources, China, USA, Canada, and other countries have established the standard of marine sediment quality for heavy metals [29,30].…”

Section: Introductionmentioning

confidence: 99%

“…Due to the presence of sandbanks and deep water depth, a large-scale reclamation project has been implemented in Caofeidian in 2003, and the project is basically finished in 2011. Now it becomes one of the busiest ports in the Bohai Sea with a cargo throughput of >5 billion tons in 2014 [28].…”

Section: Introductionmentioning

confidence: 99%

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Spatial Distribution and Contamination Assessment of Heavy Metals in Surface Sediments of the Caofeidian Adjacent Sea after the Land Reclamation, Bohai Bay

Zhu

Bing

Huang

et al. 2018

Journal of Chemistry

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Land reclamation can significantly influence spatial distribution of heavy metals in inshore sediments. In this study, the distribution and contamination of heavy metals (Cd, Cr, Cu, Ni, Pb, and Zn) in inshore sediments of Bohai Bay were investigated after the land reclamation of Caofeidian. The results showed that the concentrations of Cd, Cr, Cu, Ni, Pb, and Zn in the sediments were 0. 20-0.65, 27.16-115.70, 11.14-39.00, 17.37-65.90, 15.08-24.06, and 41.64-139.56 mg/kg, respectively. These metal concentrations were generally higher in the area of Caofeidian than in other Chinese bays and estuaries. Spatially, the concentrations of Cd, Cr, Cu, Ni, and Zn were markedly lower in the sediments close to Caofeidian compared with other regions, whereas the concentrations of Pb showed an opposite case. Hydrodynamic conditions after the land reclamation were the major factor influencing the distribution of heavy metals in the sediments. Grain sizes dominated the distribution of Cu and Zn, and organic matters and Fe/Mn oxides/hydroxides also determined the distribution of the heavy metals. Multiple contamination indices showed that the inshore sediments were moderately to highly contaminated by Cd and slightly contaminated by other heavy metals. Similarly, Cd showed a high potential ecorisk in the sediments, and other metals were in the low level. Chromium contributed to higher exposure toxicity than other metals by the toxicity unit and toxic risk index. The results of this study indicate that after the land reclamation of Caofeidian the contamination and ecorisk of heavy metals in the sediments markedly decreased in the stronger hydrodynamic areas.

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Section: Contamination Assessment Of Heavymentioning

confidence: 67%

Section: Contamination Assessment Of Heavymentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Spatial Distribution and Contamination Assessment of Heavy Metals in Surface Sediments of the Caofeidian Adjacent Sea after the Land Reclamation, Bohai Bay

Zhu

Bing

Huang

et al. 2018

Journal of Chemistry

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“…Multivariate statistical methods have been widely applied to investigate the concentrations, accumulation, and distribution of trace elements in water, soils, and suspended and bottom sediments [1,29,32,[41][42]. The multivariate statistical approach is used to identify the sources of heavy metals [11,31,[43][44][45][46][47][48][49]. CA, PCA, and FA have been frequently applied to explore the relationship between constituents andto identify the geochemical behavior and spatial variability between sites [1,31,45].…”

mentioning

confidence: 99%

Heavy Metal Transport in a River-Reservoir System: a Case Study from Central Poland

Sojka¹,

Siepak²,

Jaskuła³

et al. 2018

Pol. J. Environ. Stud.

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The development of dams alters the structure and function of river ecosystems. Dam reservoirs have an impact on flow regime, sediment transport, and water quality. Damming a river decreases water velocity, which leads to an increase in suspended sediments deposition. Reservoirs often are described as water treatment plants because they trap water contaminants and suspended sediments. Suspended sediments are the principal factor for heavy metals transport [1][2]. Human activity increased input of heavy metals to water bodies where sediments are deposited [3][4][5][6][7][8]. Amin et al. [9] and Zheng et. al. [10] reported that more than 90% of the heavy metal load in the water bodies has been associated with suspended particulate matter and sediments. The spatial and seasonal variations of heavy metal loads are controlled by suspended sediment concentrations as well as water pH, which controls the absorbance of heavy metals [11].The spatial distribution of sediments in a reservoir is not uniform [12]. Toward the dam, sediments are usually more fine-grained and lithologically uniform [13]. The heavy metals concentrations generally increased with the decrease of particle size and increase of organic matter. The concentration of heavy metals in Pol. AbstractThe aim of this study was to analyze the heavy metals transport in a river-reservoir system. Sediment samples from 25 locations (9 from the Powa River and 16 from the Stare Miasto Reservoir) were analyzed for trace metals contents (Cr, Ni, Cu, Zn, Cd, and Pb). The relationships between heavy metal concentrations and bottom sediment physical properties were determined with the use of the multivariate statistical techniques cluster analysis (CA), principal component analysis (PCA), and canonical correspondence analysis (CCA). The results showed that concentrations of heavy metals in the sediments of the reservoir were higher than those in the bottom sediments of the river. Concentrations of heavy metals in bottom sediments in the river above the reservoir were characterized by lower spatial variability. Decisive influence on heavy metal concentrations of bottom sediments had silt, clay, and total organic matter content.

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Heavy Metals Toxicity in Sediment and the Marine Environment

Joksimović

Perošević-Bajčeta

Pestorić

et al. 2021

The Handbook of Environmental Chemistry

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Distribution and contamination assessment of heavy metals in surface sediments of the Luanhe River Estuary, northwest of the Bohai Sea

Cited by 110 publications

References 38 publications

Spatial Distribution and Contamination Assessment of Heavy Metals in Surface Sediments of the Caofeidian Adjacent Sea after the Land Reclamation, Bohai Bay

Spatial Distribution and Contamination Assessment of Heavy Metals in Surface Sediments of the Caofeidian Adjacent Sea after the Land Reclamation, Bohai Bay

Heavy Metal Transport in a River-Reservoir System: a Case Study from Central Poland

Heavy Metals Toxicity in Sediment and the Marine Environment

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