Trace Elements in Sediments and Mussels – Spatial Distribution, Chemical Partitioning, and Risk Assessment

Khairy, Mohammed A.; Kolb, Marit; Schmidt, Christiane; Zachmann, Dieter; Mostafa, Alaa R.; El-Fiky, A.A.; Bahadir, Müfit

doi:10.1002/clen.201000145

Cited by 6 publications

(4 citation statements)

References 46 publications

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“…One of the most important methods developed in this area belongs to Long and MacDonald 49 and MacDonald et al 50 , who suggest “consensus-based” SQGs for assessing the environmental effects of metals. Consensus-based SQGs are determined as the geometric mean of different SQGs 51 , including those obtained using US-EPA and other similar guidelines 52 . Consensus-based SQGs contain two effect values, namely the threshold effect concentration (TEC) and the probable effect concentration (PEC).…”

Section: Resultsmentioning

confidence: 99%

Concentrations and sources of heavy metals in shallow sediments in Lake Bafa, Turkey

Algül

Beyhan

2020

Sci Rep

125

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the concentrations and sources of heavy metals in shallow sediments in Lake Bafa were investigated. the concentrations of nine heavy metals and the total organic carbon content in sediment samples were determined for between Summer 2015 and Spring 2016. The mean contents of heavy metals were in decreasing order fe > Mn > ni > cr > Zn > cu > co > pb > cd. Sediment quality guidelines indicate that Cr, Cu, and Ni pose a considerable threat to the aquatic ecosystem in Lake Bafa. Site L3 was found to be contaminated with cd, cr, and ni, and the pollution load indices suggest that these metals had anthropogenic sources. the sediment samples were notably enriched with cd and ni. there is no consistent trend for seasonal effect in terms of the sample locations. However, at all sampling points, an increase in heavy metal concentrations was observed in the autumn. the results of a multivariate analysis indicate that the sources of co, cu, fe, Mn, pb, and Zn were all natural, the sources of cd were anthropogenic, and the sources of ni and cr were both anthropogenic and natural. these results highlight that cd, cr, and particularly ni represent the most serious threat in terms of heavy metal pollution in the ecosystem of the lake. Heavy metals mainly enter aquatic environments as a result of a variety of human activities (e.g., agriculture, combustion, corroded underground pipes, industrial plants, sewage, smelting, and vehicles) 1-3. Exposure to heavy metals has been linked to various negative health effects, including cancer, behavioural problems, impaired intelligence, developmental problems, kidney damage, and miscarriage or stillbirth 4. Heavy metals are not readily degraded in the environment, and those that enter a water body can remain there for some time. They are usually found in low concentrations in aquatic systems 5 , and high concentrations of heavy metals in sediments can indicate anthropogenic rather than natural sources 6,7. Heavy metals are poorly soluble in water, so predominantly sorb to suspended particles that then settle as sediment 8. Heavy metals can thus enter the food chain in the aquatic environment, and become available for accumulation in biota 9. Fish, which are at the top of the food chain and are an important food source for humans, can accumulate heavy metals in their tissues 10 , and this characteristic makes them an effective indicator of pollution 11. Accordingly, assessment of pollution from heavy metals in sediments in the environment is very important in terms of its effects on aquatic organisms and human health 12. Lake sediments are a sink for heavy metals 13,14 , and heavy metal concentrations are generally higher in sediment than in water 15. Indeed, concentrations of heavy metals in water are sometimes lower than detection limits, meaning that sediment should be analysed to assess levels of contamination by heavy metals in the aquatic system 16-18. Lake sediments mostly act as a sink for heavy metals; on the other hand, they can also act as a source to the overlying water 19,20. C...

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Section: Resultsmentioning

confidence: 99%

Concentrations and sources of heavy metals in shallow sediments in Lake Bafa, Turkey

Algül

Beyhan

2020

Sci Rep

125

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“…As with the increased legislation on soil contamination by heavy metals, there is an increased demand for methods of risk assessment [23]. Some studies have proposed sequential extraction methods for risk assessment, especially for the potential solubility and mobility of metals in metal contaminated soils [24,25]. In European countries, the use of batch experiments as methods of risk assessment in metal contaminated soils is increasing [23].…”

Section: Introductionmentioning

confidence: 99%

Effect of Soil pH, Cattle Manure and Total Copper Load on Copper Solubility in Copper Contaminated Soils

Senkondo¹

2016

IJPSS

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Coffee fields in Kilimanjaro, Tanzania have been contaminated with copper (Cu) as a result of long term use of Cu-based fungicides. Solubility and mobility of Cu in soils may be detrimental to the environment and human health due to possible leaching thereby contaminating underground water resources. Cu solubility and bioavailability to plants may decrease with time through conversion of the contamination to less available forms, a process referred to as 'aging'. Therefore, this study explored the interaction effects of soil pH, cattle manure and the total Cu load on Cu solubility in long term Cu contaminated soils. Soils treated with and without cattle manure were leached with water adjusted to pH levels of 4, 5, 6 or 8.5. The results revealed that Cu solubility was higher in soils with higher total Cu load and that cattle manure had varied effects on Cu solubility at different pH levels. The soils buffering capacity were adequate enough to arrest fluctuations in soils pH and therefore acid rains as well as over liming may not cause excessive solubility of Cu in long term Cu contaminated soils.

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“…Giustui et al [19] confirmed that marine organisms" tissues in polluted area could accumulate heavy metals. Bivalves could serve as pollution bio-indicators for metals in Egyptian water [20] . Fe is more concentrated in date mussels" tissues followed by Zn> Cu >Cd >Pb> Cr> Co and Ni in the current study.…”

Section: Discussionmentioning

confidence: 99%

Health Status of Date Mussel "Lithophaga Lithophaga, Family: Mytilidae" in Alexanderia, Egypt: Potential Effects of the Heavy Metal Pollution

Salama

Mona

Ghoneium

2020

Egyptian Journal of Zoology

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Trace Elements in Sediments and Mussels – Spatial Distribution, Chemical Partitioning, and Risk Assessment

Cited by 6 publications

References 46 publications

Concentrations and sources of heavy metals in shallow sediments in Lake Bafa, Turkey

Concentrations and sources of heavy metals in shallow sediments in Lake Bafa, Turkey

Effect of Soil pH, Cattle Manure and Total Copper Load on Copper Solubility in Copper Contaminated Soils

Health Status of Date Mussel "Lithophaga Lithophaga, Family: Mytilidae" in Alexanderia, Egypt: Potential Effects of the Heavy Metal Pollution

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