Geochemical Assessment of Upper Mahaweli River and Polgolla Reservoir Sediments, Sri Lanka

Young, Sansfica M.; Ishiga, Hiroaki; Pitawala, H.M.T.G.A.

doi:10.1016/j.apcbee.2012.03.010

Cited by 3 publications

(3 citation statements)

References 5 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%

“…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%

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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: Methodsmentioning

confidence: 99%

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

Rzętała

2016

J Soils Sediments

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“…Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License and most of them have toxic effects on living organisms when they exceed a certain concentration (MacFarlane and Burchett, 2000;Ekeanyanwu et al, 2010;Raphael et al, 2011;Aikpokpodion et al, 2012;Ahmed et al, 2013). Heavy metals are of high ecological significance since they are not removed from water as a result of self purification, but accumulate and enter the food chain which inevitably affects the human health resulting in extremely disrupted biological processes (Loska and Wiechula, 2003;Igwe and Abia, 2006;Akpor and Muchie, 2010;Young et al, 2012). The bio-removal/ processes could offer the possibility to destroy or render various contaminants using natural biological activity.…”

Section: Introductionmentioning

confidence: 99%

Application of bacterial biomass as a potential heavy metal bio-removal agent

Daboor¹

2014

Afr. J. Microbiol. Res.

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Water has been the most important element for saving life; the major global health problem has been water pollution that may be due to the wastewater discharge into the water bodies. Several techniques have been used for water treatment that is, physical, chemical and biological methods. Recently, the third method was the most effective one for the wastewater treatment. In this work twenty bacterial isolates were isolated from River Nile, Egypt to study their capability to remove some heavy metals from its solution. Agar plates amended with different concentrations of some heavy metals were used for screening the bacterial capability for removing the tested heavy metals. According to the identification procedures based on the BIOLOG system the bacterial isolate MSNIOF11 showed a similarity of 97% to Bacillus subtilis var. globigii, so it was given the name as Bacillus subtilis var. globigii MSNIOF11. The heavy metal removal process was pH and temperature dependent, where the maximum growth and heavy metal removal was recorded at 30°C with neutral pH (7.0). In the first 24 h there was an increase of the metal removal and there was no significant change after 30 h.

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A review on dust pollution levels in urban environment of Sri Lanka with special emphasis on heavy metals in dust

Pitawala,

Samaradiwakara

2023

Environ Dev Sustain

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Geochemical Assessment of Upper Mahaweli River and Polgolla Reservoir Sediments, Sri Lanka

Cited by 3 publications

References 5 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)

Application of bacterial biomass as a potential heavy metal bio-removal agent

A review on dust pollution levels in urban environment of Sri Lanka with special emphasis on heavy metals in dust

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