Spatial distribution, source identification and pollution assessment of metal content in the surface sediments of Nansi Lake, China

Wang, LongFeng; Yang, Liyuan; Kong, Lingqian; Li, Shuang; Zhu, Jingru; Wang, Yun-Qian

doi:10.1016/j.gexplo.2014.02.008

Cited by 63 publications

(28 citation statements)

References 43 publications

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“…Its advantage is that it offers the possibility of assessing sediment contamination in various sedimentary environments. In the case of aquatic ecosystems, this index is commonly used for marine (Özkan 2012;Attia and Ghrefat 2013;Ong et al 2013), fluvial (Bojakowska and Sokołowska 1998;Ghrefat and Yusuf 2006;Nikolaidis et al 2010;Kabir et al 2011;Rabee et al 2011;Rubin et al 2011;Varol and Sen 2012;Yahaya et al 2012;Kalender and Uçar 2013), lake (Zeng and Wu 2009;Choiński et al 2010;Bing et al 2011;Hu et al 2011;Cáceres Choque et al 2013;Alikaj et al 2014; El- Sayed et al 2015;Gao et al 2015;Guo et al 2015) and reservoir sediments (Loska and Wiechuła 2003;Saleem et al 2012;Young et al 2012;Bąk et al 2013;Goher et al 2014;Tang et al 2014;Wang et al 2014;Palma et al 2015) as well as in marshes and peats (Bai et al 2012) in various climatic zones. Modern applications of the I geo are also varied; even for the algorithm for calculating, it takes different forms.…”

Section: Methodsmentioning

confidence: 99%

“…Bottom sediments in Lake Hope in Ohio, USA, contain 0.26-0.52 mg kg −1 of Cd on average (Lopez et al 2010). Many lakes in China in which the Cd content in the bottom sediments was measured exhibit low concentrations, often <1 of mg kg −1 : Nansi Lake-from 0.058 to 0.458 mg kg −1 (Wang et al 2014); Mangla Lake-from 0.05 to 4.08 mg kg −1 (Saleem et al 2012); Taihu Lake-from 0.027 to 4.086 mg kg −1 (Tao et al 2012) and 0.11 mg kg −1 (Zeng et al 2013); Hulun Lake-0.02 mg kg −1 (Zeng et al 2013);…”

Section: Cadmium In Silesian Reservoirsmentioning

confidence: 99%

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Cadmium contamination of sediments in the water reservoirs in Silesian Upland (southern Poland)

Rzętała

2016

J Soils Sediments

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Purpose Cadmium (Cd) is considered a toxic element and its concentrations are relevant to human health and the environment. Therefore, the purpose of the study was to determine the extent to which the bottom sediments of water bodies (artificial lakes and ponds) in the Silesian Upland in southern Poland are contaminated with Cd; an attempt was also made to determine the factors that condition spatial differences in the concentration of this element between individual water bodies in the region. Materials and methods Measurements of the Cd content in bottom sediments were carried out in 35 water bodies in southern Poland in 2011 and 2012. Depending on the surface area and morphometric characteristics, from two to nine samples representative in terms of sediment thickness were collected in each water body. Cadmium concentrations were determined for 92 0.25 g aliquots using the TD-ICP method. Results and discussion Cadmium content in all samples (0.7-580.0 mg kg ) and, with a few exceptions, was also higher than the preindustrial concentration (1.0 mg kg ) as the baseline for the geoaccumulation index (I geo ), the sediments examined can be classified as extremely and heavily contaminated (and moderately contaminated in a small number of cases). The assessment of sediment quality based on I geo, with the regional geochemical background (2.5 mg kg −1 ) adopted as the baseline, results in non-contaminated and moderately contaminated sediments being dominant with a far smaller number of heavily and extremely contaminated ones. Conclusions In the case of several water bodies, Cd concentrations were at record levels that have not been found anywhere else in the world. On the basis of the I geo , sediments of varying quality were found-from virtually uncontaminated to extremely contaminated. The I geo index as an indicator of the quality of bottom sediments is a measure that requires careful interpretation, especially when different concentration levels regarded as natural are used for determining its value.

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Section: Methodsmentioning

confidence: 99%

Section: Cadmium In Silesian Reservoirsmentioning

confidence: 99%

Cadmium contamination of sediments in the water reservoirs in Silesian Upland (southern Poland)

Rzętała

2016

J Soils Sediments

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“…Previous research has implied that the contents of TN, TP and TOC have been progressively augmented over time according to the analysis of sediments cores sampled in Nansi Lake [4][5][6][7]. Agricultural, aquacultural and industrial activities have been increasingly intensified at an unprecedented rate in Nansi Lake catchment since the Reform and Open Policy of China [8,9], leading to a series of environmental issues along with significant contribution to local gross domestic product. Therefore, an extensive survey on spatial variation, pollution assessment and possible sources identification of major nutrients (TP, TN and TOC) in the surface sediments of Nansi Lake was conducted.…”

Section: Study Areamentioning

confidence: 99%

“…Although the average shale values or average crustal abundance are often used, the best alternative is to compare the contents of polluted and mineralogically and texturally comparable sediments with unpolluted ones [8,24]. The survey data in the main stream sediments of the Yellow River were regarded as the background levels in this study with the consideration that Nansi Lake originated from the flooding of Yellow River [9,25], which has already gained general recognition in China.…”

Section: Sediments Nutrients Pollution Evaluationmentioning

confidence: 99%

Spatial Variation, Pollution Assessment and Source Identification of Major Nutrients in Surface Sediments of Nansi Lake, China

Wang

Xia

et al. 2017

Water

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Nansi Lake has been seriously affected by intensive anthropogenic activities in recent years. In this study, an extensive survey on spatial variation, pollution assessment as well as the possible sources identification of major nutrients (Total phosphorus: TP, Total nitrogen: TN, and Total organic carbon: TOC) in the surface sediments of Nansi Lake was conducted. Results showed that the mean contents of TP, TN and TOC were 1.13-, 5.40-and 2.50-fold higher than their background values respectively. Most of the TN and TOC contents in the surface sediments of Nansi Lake were four times as high or higher and twice as high or higher than the background values except the Zhaoyang sub-lake, and the spatial distribution of TN and TOC contents were remarkably similar over a large area. Nearly all the TP contents in the surface sediments of Nansi Lake were all higher than its background values except most part of the Zhaoyang sub-lake. Based on the enrichment factor (EF) and the organic pollution evaluation index (Org-index), TP, TOC and TN showed minor enrichment (1.13), minor enrichment (2.50) and moderately severe enrichment (5.40), respectively, and most part of the Dushan sub-lake and the vicinity of the Weishan island were in moderate or heavy sediments organic pollution, while the other parts were clean. Moreover, according to the results of multivariate statistical analysis, we deduced that anthropogenic TN and TOC were mainly came from industrial sources including enterprises distributed in Jining, Yanzhou and Zoucheng along with iron and steel industries distributed in the southern of the Weishan sub-lake, whereas TP mainly originated from runoff and soil erosion coming from agricultural lands located in Heze city and Weishan island, the local aquacultural activities as well as the domestic sewage discharge of Jining city.

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“…In this region, the Magdalena River receives treated and untreated effluents from different industries related to oil activity, hydrocarbon transportation, deposition of compounds, and particles from industrial emissions. Although wastewaters from oil refineries are treated, several pollutants, such as heavy metals from crude oil or from catalysts used in the refining process, flow into the river and are incorporated into the sediments (Wang et al, 2014b). Girardot, where the Magdalena River receives waters from the River, presented high stress gene response, survival and locomotion inhibition.…”

Section: Cluster Analysismentioning

confidence: 99%

Pollution by metals and toxicity assessment using Caenorhabditis elegans in sediments from the Magdalena River, Colombia

Benítez

Flegal

Odigie

et al. 2016

Environmental Pollution

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a b s t r a c tThe Magdalena River is the most important river in Colombia, supplying over 70% of the population of fish and drinking water, and it also is the main river transportation way of the country. It receives effluents from multiple sources along its course such as contaminant agricultural and industrial discharges. To evaluate the toxicity profile of Magdalena River sediments through endpoints such as survival, locomotion, and growth, wild type strains of Caenorhabditis elegans were exposed to aqueous extracts of the sediments. To identify changes in gene expression, GFP transgenic strains were used as reporter genes. Physiological and biochemical data were correlated with metal concentration in the sediments, identifying patterns of toxicity along the course of the river. Levels of some metals such as Cd, Cu, and Ni were above TEC and PEC limits. Effects in survival, growth, and locomotion were observed in most of the samples, and changes in gene expression were evident in the genes mtl-2, sod-4, and gst-1 using fluorescence expression. Cadmium and lead were the metals which were primarily associated with sediment toxicity, and the sampling sites with the highest increased expression of stress response genes were Barrancabermeja and Girardot. However, the diverse nature of toxic profiles observed in C. elegans in the study area showed the pervasiveness of different types of discharges throughout the river system.

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Spatial distribution, source identification and pollution assessment of metal content in the surface sediments of Nansi Lake, China

Cited by 63 publications

References 43 publications

Cadmium contamination of sediments in the water reservoirs in Silesian Upland (southern Poland)

Cadmium contamination of sediments in the water reservoirs in Silesian Upland (southern Poland)

Spatial Variation, Pollution Assessment and Source Identification of Major Nutrients in Surface Sediments of Nansi Lake, China

Pollution by metals and toxicity assessment using Caenorhabditis elegans in sediments from the Magdalena River, Colombia

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