Proposal for a metal speciation study in sediments

Campanella, Luigí; D'Orazio, D.; Petronio, B.M.; Pietrantonio, Eva

doi:10.1016/0003-2670(95)00025-u

Cited by 121 publications

(64 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Following these two basic schemes, some modified procedures with different sequences of reagents or operational conditions have been developed (Borovec et al, 1993;Campanella et al, 1995;Zdenek, 1996;Gomez Ariza et al, 2000). Considering the diversity of procedures and lack of uniformity in different protocols, a BCR (now the European Community (EC) Standards Measurement and Testing Programme) method was proposed (Ure et al, 1993).…”

Section: Introductionmentioning

confidence: 99%

Speciation of heavy metals in marine sediments from the East China Sea by ICP-MS with sequential extraction

Yuan

Shi

et al. 2004

Environment International

428

171

View full text Add to dashboard Cite

Twelve elements (V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo, Sn, Cd and Pb) in 24 sediment samples at eight sites (S1 -S8) from the East China Sea were analyzed with the BCR sequential extraction (SE) protocol to obtain the metal distribution patterns in this region. The results showed that the heavy metal pollutions in S4 and S8 were more severe than in other sampling sites, especially Cd and Pb pollution. In the top sediments at S4 and S8, both the total contents and the most dangerous non-residual fractions of Cd and Pb were extremely high. More than 90% of the total concentrations of V, Cr, Mo and Sn existed in the residual fraction. Fe, Co, Ni, Cu and Zn mainly (more than 60%) occurred in the residual fraction. While Mn, Pb and Cd dominantly presented in the non-residual fractions in the top sediments. The metal distribution patterns with depth and the correlations between total organic carbon (TOC) and the total Fe -Mn content were also investigated. The results showed that, for most of the elements except Fe, the concentration of elements in fraction A in the top sediments was higher than that in other depth. The similar rule was also found in fraction B but not in fraction C. Besides, the distributions of V, Cd in fraction B and Pb, Cd, Cu in fraction C might be affected by TOC. D

show abstract

Section: Introductionmentioning

confidence: 99%

Speciation of heavy metals in marine sediments from the East China Sea by ICP-MS with sequential extraction

Yuan

Shi

et al. 2004

Environment International

428

171

View full text Add to dashboard Cite

show abstract

“…SE procedures available in the literature are limited to the analysis of soil and sediments samples (Borovec et al, 1993;Campanella et al, 1995;Zdenek, 1996;Gomez et al, 2000). A sequential leaching procedure has been modified following the extraction schemes of Tessier et al (1979) and Kersten and Forstner (1986).…”

Section: Sequential Extraction Methodsmentioning

confidence: 99%

“…Among the SE schemes proposed to investigate the distribution of heavy metals in soil and sediments, the fivestep and six-step extraction schemes developed by Tessier et al (1979) and Kersten and Forstner (1986), respectively, have been the most widely used. Following these two basic schemes, some modified procedures with different sequences of reagents or operational conditions have been developed (Borovec et al, 1993;Campanella et al, 1995;Zdenek, 1996;Gomez et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Study of chemical forms of heavy metals collected from the sediments of tin mining catchment

Ashraf

Maah²,

Yusoff³

2012

Chemical Speciation & Bioavailability

View full text Add to dashboard Cite

The chemical speciation of heavy metals (arsenic, chromium, copper, lead, zinc and tin) in the sediments of the former tin mining catchment Bestari Jaya, Peninsular Malaysia was determined using the latest version of the Community Bureau of Reference, the BCR 3-step, sequential extraction procedure. A fourth step was introduced for the digestion and analysis of the residue. The analysis of total metal content was carried out using microwave-assisted acid digestion. The percentage of each metal obtained from the four steps extraction (acid-soluble + reducible + oxidisable + residual) is in good agreement with the percentage of total metal content obtained from microwave digestion, which implies that the accuracy of the procedure. The degree of pollution in catchment sediments was assessed using geoaccumulation index I geo and pollution intensity I POLL . The results indicates that: (1) the sediments have been polluted with arsenic (8.8%), chromium (12.9%), copper (17.4%), lead (19.5%), zinc (14.9%) and tin (33.8%) and have high anthropogenic influences; (2) the calculation of geo-accumulation index suggests that catchment sediments have background concentrations of all the studied metals (Igeo < 0); (3) high I POLL showed that all of these heavy metals pose a high environmental risk; and (4) the mobility order of metals in sediments at S1 and S2 was Sn>Pb>Zn>Cr >Cu >As, whereas at S3, S4 and S5 it was Cu>Pb>Zn>Cr>Sn>As. In conclusion, acidic pH, total organic carbon, scavenging ability and co-precipitation (inclusion, occlusion and adsorption) of studied metals with nonmetals could account for changes in the geochemistry of the catchment sediments.

show abstract

“…This relatively simple method has been reworked and improved by several researchers that they modified the reagents used for the extraction (Borovec et al, 1993;Campanella et al, 1995;Zdenek, 1996;Gomez-Ariza et 5 al., 2000;Maiz et al, 2000;Pagnanelli et al, 2004). Therefore several different methods are applied around the world.…”

Section: Introductionmentioning

confidence: 99%

Determination of heavy metal fractions in the sediments of oxbow lakes to detect the human impact on the fluvial system (Tisza River, SE Hungary)

Tamás

Farsang

2016

Preprint

View full text Add to dashboard Cite

Abstract. Hungary is rich of natural values, but often the condition of them does not meet our expectations.Oxbow lakes and floodplain areas of the South-Plain represent very significant value, not only from landscape, ecological or national tourism point of view, but it is also important from conservation aspect. The scale and ecological risk of contaminations deducted on rivers that are trapped in floodplains, especially in beds of oxbow 15 lakes, can be judged by examining the sediment of the oxbow lakes. Though data from sludge analysis can provide information about the condition of the oxbow lakes, from which long-term processes or potential ruination of oxbow lakes can be concluded.In autumn 2011 we have collected samples of sediment from seven oxbow lakes of Lower-Tisza, out of these four were located in floodplain and three outside the dam. Following the suggested method of Commission of 20 the European Communities Bureau of Reference we analyzed the sample's arsenic, zinc, cadmium, lead, nickel, cobalt, manganese, chromium and copper content with four step BCR sequential extraction, in this way we defined the acid extractable, reducible, oxidisable and residual phases of the heavy metals can be found in the sediment.It can be stated in all fractions that the contamination matter content in floodplain oxbow lakes is higher than 25 outside the dam. Arsenic, manganese and zinc are present in the sediment of the oxbow lakes in an easily mobilizable form. Regarding the third fraction of arsenic a high metal proportion (15% < III. fraction < 55%) can be observed, whilst examining cadmium and in some cases manganese in specific oxbow lakes a high proportion of fraction one and two can be identified. Lead and chromium are present in a strongly bounded form (IV. fraction > 90%). During utilization and re-cultivation of oxbow lakes a close attention to be paid to elements in 30 an easily mobilizable form like arsenic, cadmium, zinc and manganese, as these elements can damage the natural vegetation, respectively can get into the food chain through fishing, irrigation or by outplacing sludge onto plough-land.

show abstract

Proposal for a metal speciation study in sediments

Cited by 121 publications

References 12 publications

Speciation of heavy metals in marine sediments from the East China Sea by ICP-MS with sequential extraction

Speciation of heavy metals in marine sediments from the East China Sea by ICP-MS with sequential extraction

Study of chemical forms of heavy metals collected from the sediments of tin mining catchment

Determination of heavy metal fractions in the sediments of oxbow lakes to detect the human impact on the fluvial system (Tisza River, SE Hungary)

Contact Info

Product

Resources

About