Tracing and tracking wastewater-derived substances in freshwater lakes and reservoirs: Anthropogenic gadolinium and geogenic REEs in Lake Paranoá, Brasilia

Merschel, Gila; Bau, Michael; Baldewein, Linda; Dantas, Elton Luiz; Walde, Detlef Hans-Gert; Bühn, Bernhard

doi:10.1016/j.crte.2015.01.004

Cited by 81 publications

(20 citation statements)

References 61 publications

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“…3b) is related not only to the competition with Ca 2+ similar to other REEs, but also to the fact that Eu 3+ , the most reactive rare element, easily reduces to Eu 2+ , increasing its ability to substitute Ca 2+ in physiological processes (Kruk et al 2003;Zeng et al 2003;Censi et al 2014Censi et al , 2017. The Sm-positive anomaly suggests an environmental pollution due to an anthropogenic contamination of water used for irrigation (Brioschi et al 2013;Kulaksiz and Bau 2013;Merschel et al 2015).…”

Section: Distribution Of Elements In Soil and Leaf Samplesmentioning

confidence: 99%

Chemical elements as fingerprints of geographical origin in cultivars of Vitis vinifera L. raised on the same SO4 rootstock

Pepi

Grisenti

Sansone

et al. 2017

Environ Sci Pollut Res

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The uptake of major and trace elements in grapevine (Vitis vinifera L.) can be influenced by soil, climate, geographic origin, and rootstock type. Rootstocks were mainly selected to resist phylloxera and for specific tolerance to lime, mineral uptake, drought, and salinity. The relationship among concentrations of major, trace, and rare earth elements was studied in soil and leaves from two Italian grapevine cultivars, "Cabernet Sauvignon" and "Corvina," employed to produce renowned controlled designation of origin (DOC) wines. The cultivars were raised on the same rootstock SO4 in two different areas of the Veneto Region (Northern Italy). The elements were studied by X-ray fluorescence and inductively coupled plasma mass spectrometry, and data were elaborated by non-parametric tests and multivariate linear discrimination analysis. The related index of bioaccumulation was calculated to define the specific assimilation of the elements from soil to leaves. A statistically significant correspondence between soil and leaf samples was observed for Mg, Sm, V, and Zr. The results allowed to discriminate soil and leaf samples of the two cultivars according to geographical provenance, possibly providing geochemical markers (fingerprints) useful against fraudulent use of DOC wine labels.

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Section: Distribution Of Elements In Soil and Leaf Samplesmentioning

confidence: 99%

Chemical elements as fingerprints of geographical origin in cultivars of Vitis vinifera L. raised on the same SO4 rootstock

Pepi

Grisenti

Sansone

et al. 2017

Environ Sci Pollut Res

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“…Berlin, London), anthropogenic Gd can even be detected in tap water (Kulaksiz and Bau, 2011), since bank filtration does not prevent the migration of Gd-complexes into the hydrosphere (Möller et al, 2000). The extent of the anthropogenic Gd anomaly depends on the population density in the river catchment, the level of the health care system and the ratio of Gd-contaminated discharge from WWTPs to uncontaminated natural river discharge (Bau et al, 2006;Kulaksiz and Bau, 2007;Merschel et al, 2015). From the rivers, these micropollutants eventually reach coastal seawater Bau, 2011, 2007;Nozaki et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore they are used for removing pollutants from industrial wastewater effluents in constructed wetlands (Khan et al 2009). In spite of several studies that have shed light on the hydrological and geological behaviour of the anthropogenic Gd complexes, only a few studies deal with the impact of Gd complexes on aquatic organisms (Kulaksiz and Bau, 2013;Merschel and Bau, 2015). No single publication addresses the issue of whether GBCA-s can be accumulated by aquatic macrophytes.…”

Section: Introductionmentioning

confidence: 99%

Can aquatic macrophytes be biofilters for gadolinium based contrasting agents?

et al. 2018

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The use of gadolinium-based contrasting agents (GBCA) is increasing because of the intensive usage of these agents in magnetic resonance imaging (MRI). Waste-water treatment does not reduce anthropogenic Gd-concentration significantly. Anomalous Gd-concentration in surface waters have been reported worldwide. However, removal of GBCA-s by aquatic macrophytes has still hardly been investigated. Four aquatic plant species (Lemna gibba, Ceratophyllum demersum, Elodea nuttallii, E. canadensis) were investigated as potential biological filters for removal of commonly used but structurally different GBCA-s (Omniscan, Dotarem) from water. These plant species are known to accumulate heavy metals and are used for removing pollutants in constructed wetlands. The Gd uptake and release of the plants was examined under laboratory conditions. Concentration-dependent infiltration of Gd into the body of the macrophytes was measured, however significant bioaccumulation was not observed. The tissue concentration of Gd reached its maximum value between day one and four in L. gibba and C. demersum, respectively, and its volume was significantly higher in C. demersum than in L. gibba. In C. demersum, the open-chain ligand Omniscan causes two-times higher tissue Gd concentration than the macrocyclic ligand Dotarem. Gadolinium was released from Gd-treated duckweeds into the water as they were grown further in Gd-free nutrient solution. Tissue Gd concentration dropped by 50% in duckweed treated by Omniscan and by Dotarem within 1.9 and 2.9 days respectively. None of the macrophytes had a significant impact on the Gd concentration of water in low and medium concentration levels (1-256 μg L). Biofiltration of GBCA-s by common macrophytes could not be detected in our experiments. Therefore it seems that in constructed wetlands, aquatic plants are not able to reduce the concentration of GBCA-s in the water. Furthermore there is a low risk that these plants cause the accumulation of anthropogenic Gd in the food chain.

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“…During the past few decades, rivers, lakes, and WWTPs have been documented as having distinct positive Gd anomalies [13,14,15,17,22,51,56]. The anomaly was first revealed by Bau and Dulski in 1996 [17], derived from the gadopentetic acid (Gd-DTPA) used in magnetic resonance imaging (MRI) in the hospitals.…”

Section: Resultsmentioning

confidence: 99%

Anthropogenic Rare Earth Elements: Gadolinium in a Small Catchment in Guizhou Province, Southwest China

Zhang

Wang

et al. 2019

IJERPH

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Rare earth elements (REEs), known as “industrial vitamins”, are widely used in medical treatment, industry, agriculture, etc. However, with the increasing demand for REEs, excess REEs, such as gadolinium (Gd), are considered micropollutants in the environment. In this paper, the distributions of dissolved REEs were analyzed in three small streams, in order to determine the extent and occurrence of Gd anomalies. The shale-normalized REE patterns in the three streams were less smooth with heavy REEs higher than light REEs, for a weak reaction of the heavy REE complexes. A negative Ce (cerium) anomaly and positive samarium (Sm) and europium (Eu) anomalies were observed in the three streams and the negative Ce anomaly was affected by the pH of the alkaline rivers. However, a positive Gd anomaly was found in only a typical urban small stream, Jinzhong. With a population of approximately 60,000, Jinzhong runs by a hospital and through wastewater treatment plants (WWTPs). The concentrations of Gd in Jinzhong ranged from 1.54 to 86.65 ng/L with high anthropogenic Gd proportions (63.64%–98.07%). Anthropogenic Gd showed significant seasonal variations and distinct spatial disparities from upstream to downstream, and it was associated with certain ions such as Cl−. Anthropogenic Gd could be attributed to gadopentetic acid (Gd-DTPA), which is used in magnetic resonance imaging (MRI) in hospitals. This type of Gd was shown to be correlated with municipal wastewater. Due to the high stability and low particulate reactivity in water, anthropogenic Gd has great potential to serve as a tracer to prove the presence of medical wastewater.

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Tracing and tracking wastewater-derived substances in freshwater lakes and reservoirs: Anthropogenic gadolinium and geogenic REEs in Lake Paranoá, Brasilia

Cited by 81 publications

References 61 publications

Chemical elements as fingerprints of geographical origin in cultivars of Vitis vinifera L. raised on the same SO4 rootstock

Chemical elements as fingerprints of geographical origin in cultivars of Vitis vinifera L. raised on the same SO4 rootstock

Can aquatic macrophytes be biofilters for gadolinium based contrasting agents?

Anthropogenic Rare Earth Elements: Gadolinium in a Small Catchment in Guizhou Province, Southwest China

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