The concentration distribution and pollution assessment of heavy metals in surface sediments of the Bohai Bay, China

Ding, Xigui; Ye, Siyuan; Laws, Edward A.; Mozdzer, Thomas J.; Yuan, Hongming; Zhao, Guosong; Yang, Shixiong; He, Lei; Wang, Jin

doi:10.1016/j.marpolbul.2019.110497

Cited by 40 publications

(19 citation statements)

References 22 publications

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“…Even at low concentrations, the comprehensive evaluation results of I geo and RI showed that Hg was the primary heavy metal pollutant in sediments, followed by Cd and As. These results were similar to the study of Ding et al [31]. From this point of view, Hg emissions in the Daya Bay area should be effectively controlled, and it is necessary to conduct ecological risk analysis and evaluation on the uncertainty of heavy metal emissions in the Daya Bay area.…”

Section: Potential Ecological Riskssupporting

confidence: 89%

“…However, the results of the one-way analysis of variance showed that there was no significant difference in the concentrations of heavy metals from 1988 to 2020 (p > 0.05), which seems to indicate that the contribution of nuclear power plants sources to the contents of heavy metals in the sediment is limited. Compared with other bays along the coast of China, the levels of heavy metal concentration in Daya Bay were slightly higher than Beibu Gulf [20], but lower than Liaodong Bay, Bohai Bay, Jiaozhou Bay, Zhoushan Bay, and Quanzhou Bay [31][32][33][34][35]. Table 3 lists the overall heavy metal concentrations of 20 organism species collected in Daya Bay.…”

Section: Heavy Metal Concentrations In Sedimentsmentioning

confidence: 99%

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Biological Risk Assessment of Heavy Metals in Sediments and Health Risk Assessment in Marine Organisms from Daya Bay, China

Kuang

Rao

et al. 2020

JMSE

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The concentrations of heavy metals in sediments and marine organisms in Daya Bay were investigated, and the Monte Carlo method was used to analyze the uncertainty of the results of geo-accumulation characteristics and ecological and health risks. The mean concentrations of metal elements in sediments were in the following order: Zn > Cr > Cu > As > Cd > Hg, while those in marine organisms were Zn > Cu > As > Cr ≈ Cd > Hg. The geo-accumulation index (Igeo) indicated that the primary pollutant was Hg, with 5.46% moderately polluted, and 39.52% for unpolluted to moderately polluted. Potential ecological risks (RI) were between low and high risks, and the contributions of Hg, Cd, and As to ecological risks were 50.85%, 33.92%, and 11.47%, respectively. The total hazard coefficients (THQ) were less than 1, but on the basis of total carcinogenic risks (TCR), the probability of children and adults exceeded the unacceptable risk threshold of 22.27% and 11.19%, respectively. Sensitivity analysis results showed that the concentrations of carcinogenic elements contributed to risk in the order of As > Cd > Cr. Therefore, in order to effectively control heavy metals contamination in Daya Bay, it is necessary to strengthen the management of Hg, Cd, and As emissions.

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Section: Potential Ecological Riskssupporting

confidence: 89%

Section: Heavy Metal Concentrations In Sedimentsmentioning

confidence: 99%

Biological Risk Assessment of Heavy Metals in Sediments and Health Risk Assessment in Marine Organisms from Daya Bay, China

Kuang

Rao

et al. 2020

JMSE

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“…The consequent dendrogram of Q-mode hierarchical cluster analysis provides the grouping of samples according to the heavy metal, organic matter, grain size and depth. The dendrogram exhibits four groups, cluster 1 (12,24,20,10,13,18,19,9,11,5, 22 and 7) cluster 2 (16,25,6,21,26,27,17,8) cluster 3(14, 29, 23 and 15) cluster 4 (4, 28, 1, 2 and 3) (Fig. 7).…”

Section: Q Mode Clustermentioning

confidence: 99%

Assessment of Heavy Metal Pollution Indices in Surface Sediments From Southwestern Bay of Bengal, India

Sadanandan¹,

Dharmalingam²,

Agarwal³

et al. 2021

Preprint

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The study of heavy metal distribution in the shelf sediments of Southwestern part of Bay of Bengal is essential in determining the distribution pattern and to understand the consequences of marine pollution beside the coastal environment. The south eastern coastal areas of India are affected by several disturbances and contamination associated with accelerated industrialization and urbanization. Twenty-nine surface sediment samples were collected from shelf region of Southwestern part of Bay of Bengal and analyzed for sediment texture, organic matter and heavy metals. Pollution indices such as Enrichment Factor (EF), Geoaccumulation Index (Igeo), Contamination Factor (CF) as well as multivariate statistical analyses were used to recognize the pollution pattern and probable sources for metal contamination. Comparatively, the concentration of heavy metals in the study area is closely associated with finer fractions and organic matter. The results demonstrate that Cu, Co, Mn, Pb, Zn, Cr and Ni in most of the sites are extremely contaminated in terms of Igeo. The computed values of CF indicate very high contamination of the metals like Pb, Zn and Cr followed by uncontamination to moderate contamination of Cu, Mn, Ni, Co. Based on factor analysis, domestic and industrial activities from adjacent land areas are found to be the major contributors of heavy metals in the shelf sediments.

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“…Changes in the sedimentary environment can release accumulated heavy metals that cause heavy metal pollution and deterioration of the marine environment. In such a case, sediment can be both the sink and source of heavy metals (Anderson Abel et al, 2016;Nethaji et al, 2017;Sun et al, 2017;Baysal and Akman, 2018;Ding et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…To evaluate the level of contamination and possible anthropogenic impact on the sediments, 2 different techniques, the enrichment factor (Ef) and contamination factor (Cf), are calculated for sediment samples (Zhang and Liu, 2002). These factors are popular indices that have been used by researchers (e.g., Bonnail et al, 2016;Costa et al, 2015;Zalewska et al, 2015;Remeikaitė-Nikienė et al, 2018;Desena et al, 2018;Ding et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Assessment of element concentrations in surface sediment samples from Sığacık Bay (eastern Aegean)

Bakak¹,

Küçüksezgi̇n²,

Özel³

2020

Turkish J Earth Sci

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Concentrations of Al, Fe, As, Co, Cr, Cu, Mn, Ni, Pb, Zn, Hg, and organic carbon, and grain size distribution were investigated in the surface sediments of 7 sampling stations in the Sığacık Bay (western Anatolia) in December 2016. At all of the sampling stations, the concentrations of Pb, Ni, Cr, and As were higher than the average shale values. The highest concentrations of Pb, Cu, Zn, As, and Hg were found at stations near Doğanbey Cape. The possible sources of pollution were evaluated using several parameters: the enrichment factor (Ef), contamination factor (Cf), and contamination degree (Cd). The Ef values ranged between 0.12 and 7.61 in the bay. The high Ef (>1.5) values of Pb, Cu, Ni, Co, and As were assessed to explain the influence of anthropogenic sources. Additionally, the Cf values ranged from 0.46 to 5.61, while the Cd values ranged from 11.69 to 20.45 in the study area. The Cd of the Cr and As ranged between moderate and considerable, and the highest Cd was measured at stations near Doğanbey Cape. Additionally, the pollution degrees were assessed using sediment quality guidelines (SQGs), the threshold effect level (TEL), the probable effect level (PEL), the effects range low (ERL), and the effects range median (ERM). It was demonstrated that the sediments were generally heavily polluted with Cr and Ni, and moderately with Pb and Cu, according to the numerical SQGs. The concentrations of Pb, Cr, Cu, Zn, and Ni were above the TEL, while Cr and Ni were also higher than the PEL levels for all of the samples.

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The concentration distribution and pollution assessment of heavy metals in surface sediments of the Bohai Bay, China

Cited by 40 publications

References 22 publications

Biological Risk Assessment of Heavy Metals in Sediments and Health Risk Assessment in Marine Organisms from Daya Bay, China

Biological Risk Assessment of Heavy Metals in Sediments and Health Risk Assessment in Marine Organisms from Daya Bay, China

Assessment of Heavy Metal Pollution Indices in Surface Sediments From Southwestern Bay of Bengal, India

Assessment of element concentrations in surface sediment samples from Sığacık Bay (eastern Aegean)

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