Ecological risk assessment and heavy metal contamination in the surface sediments of Haizhou Bay, China

Liu, Baiqiong; Xu, Min; Wang, Jing; Wang, Zaifeng; Zhao, Lin

doi:10.1016/j.marpolbul.2020.111954

Cited by 63 publications

(28 citation statements)

References 34 publications

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“…In general, As concentrations observed in sediments from Algeciras Bay were similar than those found in Cadiz Bay, where the values ranged from 6.77 to 14.48 mg/kg and 1–2 times higher than the ones found in other ecosystems from China, such as the Jiaozhou Bay and Haizhou Bay [ 56 , 58 , 59 ]. However, they are 24–25 times below the levels found in the Ría de Huelva, where As concentrations ranged from 85.1 to 615.4 mg/kg [ 38 , 39 ].…”

Section: Resultssupporting

confidence: 63%

“…Ni and Cr values in Algeciras Bay were above the concentrations found in other ecosystems, such as the Galician coast (affected by the oil spill from the tanker Prestige in November 2002), where Ni was found in the range 1.04–16.2 mg/kg [ 60 ], the Bohay Bay in China, where these metal concentrations ranged from 23.4 to 52.7 mg/kg for Ni and from 60.1 to 224.5 mg/kg for Cr [ 61 ] and other ecosystems, such as the Jiaozhou Bay and Haizhou Bay in China [ 56 , 58 , 59 ] or the Todos los Santos Bay in Brazil [ 62 ]. Morillo et al, 2007 found 3.7–5.0 times lower levels of Ni in Cadiz Bay (2.2–39.3 mg/kg) and up to 2 times lower in the same area of Algeciras Bay (16–100 mg/kg) [ 15 ].…”

Section: Resultsmentioning

confidence: 99%

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Comprehensive Assessment and Potential Ecological Risk of Trace Element Pollution (As, Ni, Co and Cr) in Aquatic Environmental Samples from an Industrialized Area

Díaz-de-Alba¹,

Granado-Castro²,

Riaño³

et al. 2021

IJERPH

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A global assessment of arsenic (As), nickel (Ni), cobalt (Co) and chromium (Cr) was performed in environmental samples from an important industrial bay. Different fractions of water, sediments and tissues from four species of fish were analysed. Samples were collected from selected sampling sites during four consecutive samplings in spring and autumn seasons, in order to evaluate concentrations and their possible correlations among the aquatic compartments. While a higher availability of Cr and Ni was found in water, Co and As were the most available elements in sediments. In fish, the liver was the tissue with the highest proportion of As and Co, and gills showed the highest concentrations of Ni and Cr. Significance differences were observed among sites showing the pollution sources. In sediments, high correlations were found between total Co content and the most available fractions. Total Ni content highly correlated with the oxidisable fraction, while Cr total content tightly correlated with the least available fractions. Quality guideline values for sediments were frequently exceeded. In sediments and biota, concentrations were slightly higher than in other ecosystems, indicating that maritime, industrial and urban activities are affecting this type of ecosystem with great anthropogenic influence.

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Section: Resultssupporting

confidence: 63%

Section: Resultsmentioning

confidence: 99%

Comprehensive Assessment and Potential Ecological Risk of Trace Element Pollution (As, Ni, Co and Cr) in Aquatic Environmental Samples from an Industrialized Area

Díaz-de-Alba¹,

Granado-Castro²,

Riaño³

et al. 2021

IJERPH

View full text Add to dashboard Cite

show abstract

“…This method obtains the pollution coefficient of PTEs through the single factor index method, combined with the toxicity coefficient of different metal elements, to evaluate the degree of harm of PTEs quickly and easily to the ecological environment [ 44 , 45 ]. The RI was calculated using Equations (5) and (6) [ 6 ]:

where C i is the content of metal i in the sediment; C i n is the background content of metal i in the sediment ( Table 1 . Background Value); E i r is the potential ecological risk coefficient of element i; and T i r is the toxicity response factor of each element (T Cu r = 5; T Pb r = 5; T Cd r = 30; T Zn r = 1; T Cr r = 40; T As r = 1; T Hg r = 10).…”

Section: Methodsmentioning

confidence: 99%

“…This method obtains the pollution coefficient of PTEs through the single factor index method, combined with the toxicity coefficient of different metal elements, to evaluate the degree of harm of PTEs quickly and easily to the ecological environment [44,45]. The RI was calculated using Equations ( 5) and ( 6) [6]:…”

Section: Ecological Risk Assessmentmentioning

confidence: 99%

“…Due to its higher stability than that of water , sediment can more accurately indicate the quality status and trend of the marine environment [ 2 , 3 , 4 ]. Potentially toxic elements (PTEs) are important pollutants of concern in the marine environment and mainly originate from surface runoff, atmospheric deposition and direct offshore pollution [ 5 , 6 , 7 , 8 ]. They can be deposited in sediments through the adsorption of suspended particulates [ 5 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Human Activities on the Spatial Distribution, Ecological Risk and Sources of PTEs in Coastal Sediments

Wang

Lin

Wang

et al. 2021

IJERPH

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Potentially toxic elements (PTEs) have attracted substantial attention because of their widespread sources, long residue time and easy accumulation. PTEs in the surface sediments of inshore waters are strongly affected by human activities because these waters are a zone of interaction between the ocean and land. In the present study, to explore the environmental geochemical behaviour and source of PTEs in the surface sediments of coastal waters, the contents and spatial distributions of copper (Cu), lead (Pb), zinc (Zn), cadmium (Cd), chromium (Cr), mercury (Hg) and arsenic (As) in different regions of Xiamen Bay were investigated. The data were processed by multivariate statistical methods, and the distribution characteristics of PTEs in the surface sediments of Xiamen Bay were analysed. In addition, the pollution load index (PLI), geo-accumulation index (Igeo) and potential ecological index(RI) were used to evaluate the pollution degree and potential risk in the surface sediments of Xiamen Bay, and the positive matrix factorisation (PMF) model was used to analyse the source. The results show that Zn had the highest mean concentration, followed by Pb, Cr, Cu, As, Cd and Hg, among the seven PTEs. The mean contents of Pb, Zn, Cd, Cu and Hg, and especially Hg and Cd, were higher than the corresponding environmental background values. The average PLI value indicated that the Xiamen Bay sediment was moderately contaminated by PTEs. The Igeo results showed that Xiamen Bay was moderately to strongly polluted by Cd and Hg. The proportions of samples with low, medium and strong risk levels were 11.63%, 74.42%, and 13.95% in surface sediments, respectively. PMF models showed that the input of chemical fertilizer and medication, anthropogenic atmospheric components and terrestrial detritus were the main sources of PTEs in the surface sediment of Xiamen Bay.

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Iron-Based Modified Nanomaterials for the Efficacious Treatment of Cr(VI) Containing Wastewater: A Review

Kumari

Sinha

Singh

2023

Energy, Environment, and Sustainability

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Ecological risk assessment and heavy metal contamination in the surface sediments of Haizhou Bay, China

Cited by 63 publications

References 34 publications

Comprehensive Assessment and Potential Ecological Risk of Trace Element Pollution (As, Ni, Co and Cr) in Aquatic Environmental Samples from an Industrialized Area

Comprehensive Assessment and Potential Ecological Risk of Trace Element Pollution (As, Ni, Co and Cr) in Aquatic Environmental Samples from an Industrialized Area

Effects of Human Activities on the Spatial Distribution, Ecological Risk and Sources of PTEs in Coastal Sediments

Iron-Based Modified Nanomaterials for the Efficacious Treatment of Cr(VI) Containing Wastewater: A Review

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