Characteristics of heavy metals and Pb isotopic signatures in sediment cores collected from typical urban shallow lakes in Nanjing, China

Hu, Xin; Chao, Wang; Zou, Li-Min

doi:10.1016/j.jenvman.2010.10.016

Cited by 41 publications

(18 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…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%

“…The essence of the problems arising in relation to interpretation is the value of the geochemical background that is used in the calculation of the index for the element in question. Some researchers base their interpretations of element concentrations in sediments on a calculation formula that uses the presence of the element in question in a certain type of rock in the Earth's crust as the geochemical background (Loska and Wiechula 2003;Ghrefat and Yusuf 2006;Hu et al 2011;Saleem et al 2012;Young et al 2012;Goher et al 2014;El-Sayed et al 2015). Most commonly, the geochemical background for individual elements is used (Turekian and Wedepohl 1961;Bowen 1966;Li 2000;Li and Schoonmaker 2005).…”

Section: Methodsmentioning

confidence: 99%

“…In the sediments of lakes located in the urban areas of Beijing, Cd is present in amounts ranging from 0.14 to 1.22 mg kg −1 (Xuanwu Lake) and from 0.62 to 1.19 mg kg −1 (Mochou Lake) (Hu et al 2011).…”

Section: Cadmium In Silesian Reservoirsmentioning

confidence: 99%

See 2 more Smart Citations

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

Rzętała

2016

J Soils Sediments

View full text Add to dashboard Cite

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.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

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

Rzętała

2016

J Soils Sediments

View full text Add to dashboard Cite

show abstract

“…In assessing the metal contamination, geo-accumulation index (I geo ) and the enrichment factor (EF), respectively, are often used (Rubio et al 2000;Abrahim and Parker 2008;Deveza-Rey et al 2009;Botsou et al 2011;Louriño-Cabala et al 2011;Hu et al 2011;Asa et al 2013;Cukrov et al 2013;and Swarnalatha et al 2013). The metal pollution load index, ecological and geo-accumulated risk (Kabir et al 2011), trace metal to iron ratios (Bartoli et al 2012), heavy metal fractionation and KSPEF calculation (Yang et al 2012), ecological toxicity (sum of the toxic units), and potential ecological risk index method (Gao et al 2013) are also very popular in evaluating the heavy metal contamination status.…”

Section: Introductionmentioning

confidence: 99%

“…Louriño-Cabala et al (2011) used international and national reference contents as the geochemical background for the selected metals while calculating the Igeo. Hu et al (2011) calculated Igeo and EF. EF was calculated with Al and average shale concentrations of metals.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of sediment contamination with heavy metals: the importance of determining appropriate background content and suitable element for normalization

Sakan

Dević

Relić

et al. 2014

Environ Geochem Health

View full text Add to dashboard Cite

In the present study, concentrations of heavy metals (Cd, Cu, Co, Mn, Cr, Ni, Pb, and Zn) were determined at 35 river sediments in Serbia. The anthropogenic heavy metals input and quantification of the metal enrichment degree in sediments were estimated by calculating geo-accumulation indices (I(geo)) and enrichment factors (EF). These pollution indices have been calculated using different background values (continental crust and local background values) and different element used for normalization (Al and Fe), followed by result comparison. The EF values calculated with continental crust as background (minor to extremely severe enrichment) were higher than when regional background values were used (minor to moderate enrichment). Significant influence of background values on the I(geo) values is observed. Values of geo-accumulation index (<2) revealed that studied river sediments are remaining unpolluted to moderately polluted with Co, Mn, Cr, and Ni. Significant pollution in the sediments was observed for Cd, Cu, Pb, and Zn elements. The results of this study confirm the relevance of precise and accurate determining of local background concentrations while assessing sediment pollution. The values of EFs for studied elements were more influenced by the choice of background values than selection of element used for normalization. Our recommendation would be to use the local and regional background content in quantification of metal contamination in sediments, since these values differ and are site and region dependent.

show abstract

Assessment of Metal Concentrations in Sediments from Lake Bafa (Western Anatolia): An Index Analysis Approach

Yilgor

Küçüksezgi̇n

Özel

2012

Bull Environ Contam Toxicol

View full text Add to dashboard Cite

Metals, organic carbon contents were determined in surficial and core sediment samples from Lake Bafa, Western Anatolia in 2010. The ranges of Fe, Mn, Pb, Cu, Ni, Cr, Zn and Hg contents of sediments from the Bafa Lake were 9.4-35 g kg(-1), 250-780, 2.3-20, 5.8-55, 1.2-480, 63-278, 26.6-79.9 and 0.013-0.273 mg kg(-1), respectively. The mean metal concentrations in surficial sediments obtained in this study decreased in the following order; Fe > Mn > Ni > Cr > Zn > Cu > Pb > Hg for Bafa lake. Total organic carbon concentrations of the bottom sediments from the Bafa Lake varied between 0.35% and 3.58%. The mean concentrations of metal were lower than the background levels in earth crust except Cr and Ni in the core sediments. The metal levels were evaluated according to the New Geo-accumulation Index, enrichment and contamination factors. The results confirmed that the Bafa Lake is not facing serious environmental pollution risk due to metal contamination except Hg. The levels of Cr, Ni, Cu, Fe, Zn and Mn generally appear to be uniformly distributed with depth except Hg and Pb due to anthropogenic sources in the core sediments.

show abstract

Characteristics of heavy metals and Pb isotopic signatures in sediment cores collected from typical urban shallow lakes in Nanjing, China

Cited by 41 publications

References 48 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)

Evaluation of sediment contamination with heavy metals: the importance of determining appropriate background content and suitable element for normalization

Assessment of Metal Concentrations in Sediments from Lake Bafa (Western Anatolia): An Index Analysis Approach

Contact Info

Product

Resources

About