Yttrium and rare earth elements fractionation in salt marsh halophyte plants

Brito, Pedro; Malvar, Margarida; Galinha, Catarina; Caçador, Isabel; Canário, João; Araújo, M. Fátima; Raimundo, Joana

doi:10.1016/j.scitotenv.2018.06.291

Cited by 12 publications

(10 citation statements)

References 45 publications

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“…Similar observations on depletion of HREE relative to lighter rare earth elements were reported in previous studies [ 2 , 17 ]. LREE and MREE are likely more reactive than HREE [ 31 ].…”

Section: Discussionsupporting

confidence: 90%

“…In contrast, REE bioaccumulation and their effects as expressed through physiological responses such as growth and yield quality have been established in several non-mangrove species on soils with natural concentrations of REE [ 15 , 16 ]. Even though Brito et al [ 17 ] reported concentrations of REEs in salt marsh halophyte, to the best of our knowledge, investigation on REE bioaccumulation and quantitative assessments of the complete set of REE in sediment and mangrove A. marina are either few or lacking.…”

Section: Introductionmentioning

confidence: 99%

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Fractionation and Distribution of Rare Earth Elements in Marine Sediment and Bioavailability in Avicennia marina in Central Red Sea Mangrove Ecosystems

Alhassan

Aljahdali

2021

Plants

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Rare earth element fractionation and distribution in the coastal ecosystem have been of significant concern and are recognized worldwide as emerging micro-pollutants. However, unlike other metals such as trace elements, little is known about their uptake by aquatic plants such as the mangrove Avicennia marina, especially in the central Red Sea. We investigated the fractionation of rare earth elements in six mangrove ecosystems in the central Red Sea and bioavailability in mangrove A. marina. The concentrations of rare earth elements, sediment grain sizes, multi-elemental ratios, geo-accumulation index (Igeo) and bioconcentration factor (BCF) vary significantly (p < 0.05) across the six mangrove ecosystems. Higher concentrations of rare earth elements were recorded at Al Lith (LT) (101.53 mg/kg) and South Jeddah (SJ) (73.38 mg/kg) mangrove ecosystems. However, multi-elemental ratio R(M/L) reveals positive values. In contrast, multi-elemental ratio R(H/M) reveals negative values corresponding to fractionation patterns enriched with medium rare earth elements and heavy rare earth elements depletion across the six mangrove ecosystems. BCF values for rare earth elements were <1, but Lutetium (0.32) had the highest BCF among the rare earth elements, suggesting an efficient accumulation of Lutetium than any other rare earth elements. The scale of Igeo revealed strong contamination (4 ≤ Igeo ≥ 5) of sediment with Lanthanum, Cerium, Praseodynium, Samarium, Godolinium, Holmium, Erbium, Ytterbium, and moderate contamination with Thulium, Terbium, and Dysprosium (1 ≤ Igeo ≤ 3). Principal component analysis showed that clay silt sediment grain size influences rare earth element concentrations in the central Red Sea. Our results provide new evidence for rare earth element fractionation and accumulation in sediment and the potential use of mangrove A. marina for rare earth element monitoring in mangrove ecosystems in the central Red Sea.

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“…Similar observations on depletion of HREE relative to lighter rare earth elements were reported in previous studies [ 2 , 17 ]. LREE and MREE are likely more reactive than HREE [ 31 ].…”

Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Fractionation and Distribution of Rare Earth Elements in Marine Sediment and Bioavailability in Avicennia marina in Central Red Sea Mangrove Ecosystems

Alhassan

Aljahdali

2021

Plants

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“…They reported REE contents in sediments ranging between 32 and 190 mg kg −1 , which is similar to the values obtained in this study, although the sediments investigated in the Montviel area came from a zone that has not undergone human modification. On the other hand, the REE contents obtained from the aquatic Typha latifolia (TY) and terrestrial E. arvense (EQ) plants were far from those obtained from the halophyte plants analyzed by Reference [36], which are known to be good sequesters of metals. In the same study, no differences in the fractionation between the LREEs and the HREEs were observed between sediments and root plants.…”

Section: Unitsmentioning

confidence: 87%

“…Brito et al [36] studied the REE content in sediments and halophyte plants (Sarcocornia fruticosa and Spartina maritima) in research performed in a salt marsh with high human pressure. They reported REE contents in sediments ranging between 32 and 190 mg kg −1 , which is similar to the values obtained in this study, although the sediments investigated in the Montviel area came from a zone that has not undergone human modification.…”

Section: Unitsmentioning

confidence: 99%

Biogeochemical Cycle of Lanthanides in a Light Rare Earth Element-Enriched Geological Area (Quebec, Canada)

et al. 2019

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This work investigated a rare earth element (REE) natural biogeochemical cycle in an area with a light rare earth element (LREE)-rich ferrocarbonatite intrusion. An REE determination in this geological environment allowed us to trace REE natural transfers in order to better manage future REE mining exploitations. Our findings suggest that although REE concentrations in abiotic compartments (soil and freshwater systems) and biotic samples (terrestrial and aquatic plants) were low, the LREE fractionation observed in the parent material was maintained along compartments. Additionally, Nd anomalies observed in the sediment pore water suggest a potential different biogeochemical cycle of this element in aquatic systems. According to the potential bioaccumulation of REEs in the organisms of two studied plants belonging to terrestrial and aquatic compartments, Equisetum arvense L. and Typha latifolia L. (respectively), we observed that REEs were not accumulated and that they showed limited REE transfer inside plants, but with an increased uptake of Eu relative to the other REEs. Our results indicated a low mobility and transfer of REEs from REE-rich bedrocks in a natural area toward terrestrial and freshwater systems, but also pointed to a dilution of the REE content in the different compartments, maintaining the LREE fractionation. Our findings provide new knowledge about the REE biochemical cycle in a natural area (from rocks to plants) and represent a starting point for an environmentally friendly exploitation of future REE mining areas.

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“…Mangrove is an important intertidal coastal system, providing a myriad of ecological services and receives lots of terrestrial pollutants [10,11]. In mangrove sediments, REEs are relatively new pollutants, and provide insight into the elemental cycling in the coastal wetlands and the abundance of REEs in the source areas [12,13]. Wang et al (2017) reported that the total concentrations of rare earth elements (TREEs) ranged from 141.28 to 269.20 mg kg −1 in mangroves in Dongzhai Harbor, Hainan Island, China [14].…”

Section: Introductionmentioning

confidence: 99%

Occurrence and Contamination of Rare Earth Elements in Urban Mangroves of Shenzhen, South China

et al. 2021

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Mangroves acted as sinks of terrestrial pollutants, but the occurrence and contamination of rare earth elements (REEs) in urban mangroves lacked systematic evaluation. In rapidly developing Shenzhen, China, four typical urban mangroves were selected to determine the REEs in urban mangroves, including Baguang mangrove (BGM) and Futian mangrove (FTM) featured with ecological preserve and central business district, respectively; Xixiang mangrove (XXM) and Shajing mangrove (SJM) both featured with industry district. The mean concentrations of total REEs (TREEs) in sediment (0–25 cm depth, μg g-1) were SJM (465.28) > FTM (411.25) > XXM (342.76) > BGM (118.63), with Ce to be the dominant REEs element. The depositions of REEs in urban mangroves were significantly affected by sediment sulfur accumulation and fine sediment, including silt and clay fractions. The main fractionation pattern of REEs in urban mangroves was the enrichment of light REEs (LREEs) and loss of heavy REEs (HREEs). Geo−accumulation index, modified degree of contamination, pollution load index, and potential ecological risk index showed the moderately contaminated level of REEs in FTM, followed by SJM and XXM, with uncontaminated level in BGM. This study provided important information on REEs in urban mangroves for pollution prevention and remediation in the future.

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Yttrium and rare earth elements fractionation in salt marsh halophyte plants

Cited by 12 publications

References 45 publications

Fractionation and Distribution of Rare Earth Elements in Marine Sediment and Bioavailability in Avicennia marina in Central Red Sea Mangrove Ecosystems

Fractionation and Distribution of Rare Earth Elements in Marine Sediment and Bioavailability in Avicennia marina in Central Red Sea Mangrove Ecosystems

Biogeochemical Cycle of Lanthanides in a Light Rare Earth Element-Enriched Geological Area (Quebec, Canada)

Occurrence and Contamination of Rare Earth Elements in Urban Mangroves of Shenzhen, South China

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