Mobility, ecotoxicity, bioaccumulation and sources of trace elements in the bottom sediments of the Rożnów reservoir

Szara-Bąk, Magdalena; Baran, Agnieszka; Klimkowicz‐Pawlas, Agnieszka; Tkaczewska, Joanna; Wojtasik, Barbara

doi:10.1007/s10653-021-00957-4

Cited by 19 publications

(11 citation statements)

References 43 publications

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“…They were then freeze-dried at -40 °C. On the same day, freeze-dried samples were ground into powder for analysis (Szara-Bąk et al, 2021). Sample analysis resumed in less than 12 hours.…”

Section: Sediment Sampling and Digestionmentioning

confidence: 99%

Bioavailability of heavy metals in surface sediment of Anzali International Wetland, Iran

Amini¹,

Hatami-manesh²,

Aazami

et al. 2022

Preprint

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The study aimed to determine the metal concentration, mobility, bioavailability, ecological risk, and toxicity in the surface sediment of Anzali International Wetland. Pb, As, Cd, Cr, Ni, Zn, and Fe Concentrations in 33 samples are reported here. A five-step sequential extraction technique was used to determine the chemical forms of metals. To assess ecological risk (Er), Risk Index (RI), Toxic Unit (TU), the sum of Toxic Units (ΣTUs), Toxic Risk Index (TRI), and modified Hazard Quotients (mHQ) were calculated. Mean concentrations of heavy metals (mean ± S.D.) were Zn (95.46±20.71) > Cr (19.79±2.79) > Ni (18.49±5.23) > Pb (13.97±3.20) > As (6.45±1.87) > Cd (0.90±0.34). Cd exhibited the highest mobility and bioavailability, while Cr, Pb, Zn, Ni, and As, were found mainly in residual fractions, which are non-bioavailable and pose a little ecological risk. Cd showed the highest levels in the reducible and organic phases; Cr, Pb, Zn, and Ni had the lowest ones. Ecological risk assessment suggested that Cd had “moderate” to “considerable” risk potential at some sampling sites. Risk index indicated that Anzali sediment had “low” to “moderate” risk potential (150 < RI < 300). Based on values of RI, ∑TUs, and mHQ we conclude that sediment of Anzali Wetland has low to moderate risk potential and low toxicity.

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“…They were then freeze-dried at -40 °C. On the same day, freeze-dried samples were ground into powder for analysis (Szara-Bąk et al, 2021). Sample analysis resumed in less than 12 hours.…”

Section: Sediment Sampling and Digestionmentioning

confidence: 99%

Bioavailability of heavy metals in surface sediment of Anzali International Wetland, Iran

Amini¹,

Hatami-manesh²,

Aazami

et al. 2022

Preprint

View full text Add to dashboard Cite

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“…Total contents of macronutrients (Ca, Mg, K, P) and trace elements (Fe, Mn, Cd, Cr, Cu, Ni, Pb, Zn) were determined after digestion in a mixture of HNO 3 (65%) and HCl (30%) (3:1 v/v), (Suprapur MERCK) and solution in a microwave system (AntonPaar Multiwave 3000). The mobility of trace elements (Cd, Cr, Cu, Ni, Pb, Zn) contained in the media was analysed by a four-step sequential chemical extraction by the modified BCR method (BCR Information Reference Materials 2001; Szara-Bąk et al 2021). The method allowed the determination of four metal fractions: fraction F1-exchangeable, easily soluble in an acidic medium (extracted with 0.11 M CH 3 COOH, pH = 2); fraction F2-reducible, bound to Fe and Mn oxides (extracted with 0.5 M NH 2 OHHCl, pH = 1.5), fraction F3-oxidable, bound to organic matter (extracted with hot 30% H 2 O 2 and (3: 2 v/v)) (Baran et al 2019c;Szara-Bąk et al 2021).…”

Section: Chemical Analyses Of Soil-sediment Mixtures and Plantsmentioning

confidence: 99%

Recycling of bottom sediment to agriculture: effects on plant growth and soil properties

2022

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Purpose The use of bottom sediments in agriculture reduces the storage of excavated material and allows the nutrients it contains to be applied for soil fertilisation and improvement. However, the direct application of sediments to soil may cause numerous problems. Therefore, the addition of other waste materials may be a promising and useful method in the production of bottom-sediment-based growing media. The aim of the study was to evaluate the effect of growing media prepared on the basis of bottom sediments and various waste materials on the properties of soil as well as on the yield and chemical composition of courgette biomass. Methods The growing media were prepared with substrates in the form of mixtures with bottom sediments taken from the Rożnów reservoir. The effect of mixtures on plant growth was determined in a laboratory pot experiment. Air-dry mixtures (M1—bottom sediment with water treatment sludge (BS + SW); M2—bottom sediment with biomass ash (BS + BA); M3—bottom sediment with coffee hulls (BS + CH)) were mixed with soil (S) in the following proportions: combination I—25%, combination II—50%, combination III—75%, and combination IV—100% mixture. Results The media did not have harmful effects on the plant or the soil environment. They had deacidifying properties; high contents of calcium, magnesium, potassium, and phosphorus; low total trace element content; and posed little risk of metal mobility. Heterocypris incongruens was the organism most sensitive to the substances contained in the studied media. The use of bottom-sediment-based media reduced the biomass of the test plant and, at the same time, limited the accumulation of trace elements in its aboveground parts. Conclusion Most of the analysed media were low-toxic to the test organisms and can potentially be used in agriculture, horticulture, or the reclamation of degraded land.

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“…For this reason, reservoirs and their sediments are often studied for metal(loid) contamination [6,7,10,12]. Reservoir sediments often exhibit differences in the spatial distribution of metal(loid) concentrations [13], in the temporal tendencies of contaminant accumulation [14,15], or in the release of metal(loid)s into the water phase [16][17][18]. Therefore, in order to estimate the sink and source functions of a reservoir, it is important to know the extent to which the sediment quality in reservoirs may differ within a large geologic unit due to the differences in land-use history, catchment characteristics and relief conditions.…”

Section: Introductionmentioning

confidence: 99%

Sink and Source Functions for Metal(loid)s in Sediments and Soils of Two Water Reservoirs of the Ore Mountains, Saxony, Germany

et al. 2022

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Since reservoirs can act as sinks for potential contaminants, such as metal(loid)s, sediment management is a challenge for reservoir operators. To exemplify the variability of concentrations of arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb), vanadium (V) and zinc (Zn), the sediments of two differently constituted reservoirs located in the Ore Mountains (Saxony, Germany) were comparatively investigated. In the sediments of the Einsiedel Reservoir, which has a catchment area dominated by forestry, the median values showed an enrichment of Cd (6.7 mg/kg), Co (31.4 mg/kg), Hg (0.57 mg/kg), Ni (39.0 mg/kg) and Zn (283 mg/kg), mainly due to an elevated geogenic background and a preferential input of these elements from the soils of the catchment area. Sediments of the Berthelsdorf Smelter Pond, which has a predominantly agricultural catchment, had relatively high median concentrations of As (62.9 mg/kg), Cd (10.3 mg/kg), Cr (43.1 mg/kg), Cu (50.2 mg/kg), Hg (0.51 mg/kg), Pb (204 mg/kg), V (57.0 mg/kg) and Zn (626 mg/kg), which was due to an elevated geogenic background and heavy anthropogenic metal(loid) inputs over the past. Statistical analyses indicated that site-specific differences (e.g., in the content of organic matter or in the physicochemical properties of sediments) may influence the sink and source functions of the reservoirs for metal(loid)s. In this context, a strong influence of the specific catchment characteristics on the sediment composition of the reservoirs was concluded. Based on the German Federal Soil Protection Ordinance, the status quo of the metal(loid) contamination of the two reservoirs was evaluated and recommendations for further management and investigations were derived.

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Mobility, ecotoxicity, bioaccumulation and sources of trace elements in the bottom sediments of the Rożnów reservoir

Cited by 19 publications

References 43 publications

Bioavailability of heavy metals in surface sediment of Anzali International Wetland, Iran

Bioavailability of heavy metals in surface sediment of Anzali International Wetland, Iran

Recycling of bottom sediment to agriculture: effects on plant growth and soil properties

Sink and Source Functions for Metal(loid)s in Sediments and Soils of Two Water Reservoirs of the Ore Mountains, Saxony, Germany

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