The use of water hyacinths to determine trace metal concentrations in the tropical Morichal Largo River, Venezuela

Schorin, H.; Benzo, Zully; Bastidas, Carolina; Velosa, M.; Marcano, Eunice

doi:10.1016/0883-2927(91)90029-o

Cited by 8 publications

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Cu levels in E. crassipes were similar to the ones obtained by Klumpp et al (2002), but much lower than the ones obtained by Soltan and Rashed (2003). Zn levels in E. crassipes are similar to the ones obtained by Schorin et al (1990) but lower than reported by other authors (Pfeiffer et al, 1986;Soltan and Rashed, 2003). Pb levels in E. crassipes showed higher values compared to the ones obtained by Schorin et al (1990).…”

Section: Minor and Trace Elements In Macrophytessupporting

confidence: 78%

“…Zn levels in E. crassipes are similar to the ones obtained by Schorin et al (1990) but lower than reported by other authors (Pfeiffer et al, 1986;Soltan and Rashed, 2003). Pb levels in E. crassipes showed higher values compared to the ones obtained by Schorin et al (1990). The same species showed lower concentration of Co, Cu, Cr and Pb than the ones published by Soltan and Rashed (2003).…”

Section: Minor and Trace Elements In Macrophytessupporting

confidence: 76%

See 1 more Smart Citation

Accumulation of metals in macrophytes from water reservoirs of a power supply plant, Rio de Janeiro State, Brazil

Valitutto

Sella

Silva-Filho

et al. 2006

Water Air Soil Pollut

View full text Add to dashboard Cite

Aquatic macrophytes are well known accumulators for heavy metals, the reason why they are used as bioindicators for water quality and in phytoremediaton strategies. This study reports on the elemental concentrations in four free-floating aquatic macrophytes (S. auriculata; P. stratiotes; E. crassipes and E. azurea) growing in two water reservoirs (Santana e Vigário, Rio de Janeiro State, Brazil) of an electric power plant that receive input from the polluted Paraíba do Sul River. Filtered water samples and water suspended solids from these environments were also analysed. Inductively coupled plasma mass spectrometry was used as the principal method, allowing the determination of up to 41 elements, including the rare-earth elements (REEs) and other trace metals not assayed before in these macrophytes. The results show that all elements studied are accumulated by the macrophytes R. S. Valitutto · S. M. Sella ( ) · E. V. Silva-Filho (PUC-Rio), 22451-900, Rio de Janeiro, Rua Marquês de São Vicente, 225 with concentration ratios (CR = [plant]: [water]) varying from about 1,000 to 200,000, based on the dry weight of the plant species. With a few exceptions, highest accumulations were observed in E. crassipes in which CRs increase in the sequence: Cu < Mo < Cr < Pb < Tl < Fe < La < Zn < Ce< Mn. Surprisingly high CRs (e.g. Ce: 74,000) and corresponding mass concentrations were observed for the rare-earth elements (e.g. REE: 112 mg kg −1 ), also measured in the water suspended particle fraction. The results show that this fraction acts as an effective sink for trace metals in the aquatic system studied and seems to play also an important role in the transfer of metals from water to the plant species.

show abstract

Section: Minor and Trace Elements In Macrophytessupporting

confidence: 78%

Section: Minor and Trace Elements In Macrophytessupporting

confidence: 76%

Accumulation of metals in macrophytes from water reservoirs of a power supply plant, Rio de Janeiro State, Brazil

Valitutto

Sella

Silva-Filho

et al. 2006

Water Air Soil Pollut

View full text Add to dashboard Cite

show abstract

“…Para os outros metais, a inter-relação linear foi pouco pronunciada, ou seja, a concentração do metal na raiz da planta não aumentou com a elevação da concentração na água. 55 As plantas removem os metais do corpo de água pela adsorção superficial e/ou pela absorção e os incorporam dentro de seu sistema ou os armazenam em uma forma química. …”

Section: Resultsunclassified

Evaluation of the Potential use of Macrophytes as Heavy Metal Accumulator

Jesus¹,

Souza²,

Santos³

et al. 2015

Revista Virtual De Química

View full text Add to dashboard Cite

Abstract:The current study aims to evaluate the ability of different macrophyte species found in Subaé River headwaters to bioaccumulate heavy metals as well as to investigate whether the found concentrations reflect the environmental quality state in the region. Macrophyte collections were held in February and August 2012 in four points of Subaé Lagoon (one of Subaé River headwaters). The samples were dried, ground, sieved and digested using nitric acid and perchloric acid. The reading of the metals was determined by Flame Atomic Absorption Spectrophotometry (FAAS). The metal accumulation order varied according to the analyzed species, but manganese was the metal that showed the highest concentrations at all collection points. Although only Zn and Cu concentrations in water and macrophytes reflect significant bioaccumulative potential, there was high positive correlation regarding Mn and Pb (0.87 and 0.70, respectively). Typha dominguensis (Mn, Cu and Zn) and Acroceras zizanioides (Pb, Cr and Ni) were the species that stood out in relation to metal concentrations. Therefore, it is suggested that these species should be used in future environmental monitoring studies specific to Subaé River headwaters -Feira de Santana, Bahia.Keywords: Heavy metals; macrophytes; phytoremediation; bioaccumulation. ResumoO objetivo do presente estudo foi avaliar a capacidade de bioacumulação de metais pesados em diferentes espécies de macrófitas presentes nas nascentes do rio Subaé, Feira de Santana-Bahia e evidenciar se as concentrações encontradas refletem o estado de qualidade ambiental da região. As coletas das macrófitas foram realizadas em Fevereiro e Agosto de 2012, em quatro pontos da Lagoa do Subaé (uma das nascentes do rio Subaé). As amostras foram desidratadas, moídas, peneiradas e digeridas com ácido nítrico e ácido perclórico. A análise dos metais foi realizada empregando a espectrofotometria de absorção atômica por chama (EAA). A ordem de acumulação de metais variou conforme as espécies analisadas, porém o manganês foi o metal que apresentou as maiores concentrações, em todos os pontos de coleta. Apesar de apenas as concentrações de Zn e de Cu na água e nas macrófitas refletirem o potencial bioacumulador significativo, houve correlação positiva alta para Mn e Pb (0,87 e 0,70, respectivamente). As espécies que mais se destacaram em relação às concentrações de metais foram a Typha dominguensis (Mn, Cu e Zn) e a Acroceras zizanioides (Pb, Cr e Ni). Portanto, sugere-se que essas espécies sejam utilizadas em futuros estudos de monitoramento ambiental, específicos para as nascentes do rio Subaé-Feira de Santana, Bahia.Palavras-chave: Metais pesados; macrófitas; fitorremediação; bioacumulação.

show abstract

“…Los valores de Cd encontrados en la presente investigación son mayores a los registrados en raíces de E. crassipes del río Almendares en Cuba donde el mayor valor fue de 3.8 mg/kg (Lima et al 2005). La especie E. crassipes se ha propuesto como biomonitora de contaminación por metales y se ha utilizado en monitoreos de ríos en Cuba (Lima et al 2005) y Venezuela (Schorin et al 1991), donde se ha comprobado su potencial para detectar metales en los ríos, aun cuando estos se encuentren en bajas concentraciones. En este sentido, Pernía et al (2016) comprobaron la capacidad de E. crassipes de acumu-lar Cd de forma proporcional a la concentración de este metal en el agua, llegando a acumular 514.44 ± 208.11 mg/kg en hojas y 1482.66 ± 368.41 mg/kg en raíces al exponerla a 1 mg/L de Cd durante siete días.…”

Section: Concentraciones De CD En Eichhornia Crassipes De Los Ríos Guayas Daule Y Babahoyounclassified

CONCENTRACIÓN DE CADMIO EN AGUA, SEDIMENTOS, Eichhornia crassipes Y Pomacea canaliculata EN EL RÍO GUAYAS (ECUADOR) Y SUS AFLUENTES

Mero¹,

Pernía²,

Ramírez-Prado³

et al. 2019

Rev. Int. Contam. Ambie.

View full text Add to dashboard Cite

Palabras clave: contaminación, biomonitores, metal pesado, río Daule, río Babahoyo RESUMEN En Ecuador existen evidencias de contaminación por cadmio en el Golfo de Guayaquil, sin embargo, poco se conoce sobre la contaminación por este metal en sus ríos afluentes. El propósito de la investigación fue evaluar la contaminación por cadmio en agua, sedimentos, jacinto de agua Eichhornia crassipes y en el caracol Pomacea canaliculata en los ríos Guayas, Daule y Babahoyo. Para ello, se muestrearon nueve estaciones en total, se tomaron cinco muestras de agua, cinco de sedimentos y cinco de organismos por localidad, se determinaron las concentraciones de Cd y los factores de bioconcentración (FBC). Además, se midieron los parámetros pH, temperatura y salinidad. El Cd en agua no fue detectable en los sitios estudiados, mientras que en sedimentos ocho de las nueve estaciones excedieron los límites máximos permisibles según la norma ecuatoriana y la norma canadiense de calidad ambiental. Sin embargo, las concentraciones biodisponibles del metal en el sedimento fueron inferiores al nivel de efecto probable (PEL) y al valor de referencia canadiense, minimizando los posibles daños a la biota. El jacinto de agua acumuló mayores concentraciones de Cd que el gasterópodo y presentó FBC mayores a uno, indicando que es un buen biomonitor de Cd, a diferencia del caracol. También se evidenció correlación entre los parámetros físicos y químicos y la disponibilidad del metal en el sedimento y su acumulación en los organismos. Se concluye que existe contaminación por Cd en los tres ríos y se propone el monitoreo anual de estos, utilizando la especie E. crassipes como biomonitora.

show abstract

The use of water hyacinths to determine trace metal concentrations in the tropical Morichal Largo River, Venezuela

Cited by 8 publications

References 7 publications

Accumulation of metals in macrophytes from water reservoirs of a power supply plant, Rio de Janeiro State, Brazil

Accumulation of metals in macrophytes from water reservoirs of a power supply plant, Rio de Janeiro State, Brazil

Evaluation of the Potential use of Macrophytes as Heavy Metal Accumulator

CONCENTRACIÓN DE CADMIO EN AGUA, SEDIMENTOS, Eichhornia crassipes Y Pomacea canaliculata EN EL RÍO GUAYAS (ECUADOR) Y SUS AFLUENTES

Contact Info

Product

Resources

About