Speciation and Sources of Toxic Metals in Sediments of Lake Chapala, Mexico

Trujillo-Cárdenas, Juan Luis; Saucedo-Torres, N. P.; Valle, Pedro F. Zárate del; Ríos-Donato, Nely; Mendizábal, Eduardo; Gómez-Salazar, Sergio

doi:10.29356/jmcs.v54i2.949

Cited by 12 publications

(10 citation statements)

References 24 publications

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“…The metal binding in individual fractions can be ordered in the following order: F1: Cd > Pb > Zn > Cu F2: Zn > Cd > Pb > Cu F3: Zn > Cd > Pb > Cu F4: Cu > Pb > Cd > Zn F5: Cu > Pb > Zn > Cd In the Mexican Lerma-Chapala Watershed study, in which only total concentration was analyzed, they found that the sediments transported by the Lerma river to Chapala lake are the final deposition destination of Cd, Cr, Ni, Cu, Pb, Zn. A proper risk assessment of the metal migration from contaminated sediments to water in Chapala lake was performed only in the following studies, using a five-step sequence of sequential metal extraction [20].…”

Section: Resultsmentioning

confidence: 99%

Metal forms in bottom sediments as a bioavailability indicator

Wojtkowska¹

2019

Chemical Technology and Engineering. Proceedings.2019.№1

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Section: Resultsmentioning

confidence: 99%

Metal forms in bottom sediments as a bioavailability indicator

Wojtkowska¹

2019

Chemical Technology and Engineering. Proceedings.2019.№1

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“…Se utilizó el factor de bioacumulación de sedimento a biota (FBSB) para establecer la relación ecotoxicólogica entre las especies y su hábitat, debido a que los peces y crustáceos con los que se alimentan las aves crecen, se reproducen e incluso también se alimentan en el área de los sedimentos (Trujillo-Cárdenas et al 2010). El FBSB se calculó con la siguiente fórmula: FBSB = C B /C S donde C B es la concentración del contaminante en el ave y C S es la concentración del contaminante en el sedimento.…”

Section: Factor De Bioacumulación De Sedimento a Biotaunclassified

“…Estas especies anidan y permanecen en la ribera del lago, por lo tanto, se consideran residentes anuales. Las tres especies seleccionadas se alimentan principalmente de peces y crustáceos, los cuales a su vez se alimentan de lo que crece o está en los sedimentos (Trujillo-Cárdenas et al 2010). Las aves acuáticas se han utilizado para el biomonitoreo de metales pesados en otros lugares del mundo (Honda et al 1986, Custer et al 2008, Ferreira 2011.…”

Section: Introductionunclassified

Biomonitoreo De Metales Pesados en Plumas De Aves Acuáticas Residentes Del Lago De Chapala, México

González

Bernal

Mora

et al. 2018

Rev. Int. Contam. Ambie.

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RESUMENEl lago de Chapala es considerado importante por los servicios económicos, recreativos y ecológicos que ofrece. Es abastecido principalmente por el río Lerma, en el cual se vierten los desechos industriales de los estados de México, Querétaro y Guanajuato, así como los desechos urbanos y agropecuarios de los estados de Michoacán y Jalisco. Estos desechos pueden ser nocivos para los organismos residentes en el lago de Chapala, ya que algunos compuestos químicos tienen la capacidad de acumularse a través de la red trófica y causar daños a dichas poblaciones. En este trabajo se determinó la contaminación por metales pesados mediante la cuantificación de Ag, As, Cd, Cr, Hg, Pb, Sr y Ti en plumas de tres especies locales de aves acuáticas (Ardea alba, Egretta thula y Nycticorax nycticorax), así como en el sedimento y el agua del lago de Chapala. El análisis de la concentración de metales en plumas se realizó mediante espectrometría con fuente de plasma de acoplamiento inductivo. Ardea alba presentó la mayor concentración promedio de Pb (43.65 µg/g) y Cr (52.47 µg/g) en el raquis de las plumas. Eestas concentraciones fueron estadísticamente significativas respecto a las encontradas en E. thula y N. nycticorax (p ≤ 0.05). Los valores obtenidos del factor de acumulación biota-sedimento indican acumulación de Ag, As, Cd, Cr, Cu, Hg y Pb en las aves del lago de Chapala. Las plumas de aves acuáticas residentes en dicho lago demostraron ser una herramienta no letal y útil para el biomonitoreo de la contaminación por metales pesados. ABSTRACTLake Chapala is considered important because of the economic, recreational, and ecological services that it offers. The main water source of the lake is the Lerma river, which receives industrial waste discharges from the states of Mexico, Queretaro, and Guanajuato, as well as municipal and agricultural waste discharges from the states of Michoacan and Jalisco. Contaminants present in such waste discharges can accumulate through the food web and affect other species in the Chapala ecosystem. We estimated Rev. Int. Contam. Ambie. 34 (2) 215-224, 2018

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“…As a result, the sediments containing pollutant contaminants may affect the concentrations of heavy metals in the water column and marine biota. Trujillo-Cárdenas et al (2010) explains that the migratory behavior and bio-concentration of heavy metals is determined by the way in which the metal ions are distributed in a particulate or liquid form. Thus, not only is the sediment contamination transport media, but also it is a secondary source of contamination in the water system.…”

Section: Spatial and Seasonal Distribution Of Cadmiummentioning

confidence: 99%

Spatial and Seasonal Distribution of Cadmium and Lead in Sediment, Water and Its Response of Metal Transcription Factor-1 in Cardinal Fish Apogon beauforti

2018

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Cadmium (Cd) and lead (Pb) are known to have high toxic effects and have been found polluting marine environment. Regular monitor the concentration of heavy metals in marine waters is necessary by combining chemical and biological analysis. This research was conducted to analyze the levels of heavy metals in sediment, water column, cardinal fish Apogon beauforti, and to measure the concentration of MTF-1 protein in A. beauforti. This research was conducted at four sampling stations at Ambon bay for 2 years. The levels of Cd and Pb metals were analyzed using AAS instruments (Atomic Absorbsion Spectrophotometer), while the concentration of MTF-1 protein in the body of A. beauforti was analyzed using indirect ELISA. The results showed that the seasonal and spatial distribution of heavy metals Cd and Pb at Ambon bay did not show any variation. The results of the ANOVA proved that the concentrations of heavy metals Cd and Pb in the four research stations were not significantly different in the year 2013 and in the year 2014 in the samples of sediment, the water column, and the body of A. beauforti. In addition, it was revealed that the concentration of MTF-1 protein of A. beauforti in 2014 was higher than that in 2013, with an average of the concentration of MTF-1 protein of A.beauforti was higher at station 2, which was at Ferry Galala Harbor. Keywords: distribution, spatial, seasonal, cadmium, lead, MTF-1, Apogon beauforti

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Speciation and Sources of Toxic Metals in Sediments of Lake Chapala, Mexico

Cited by 12 publications

References 24 publications

Metal forms in bottom sediments as a bioavailability indicator

Metal forms in bottom sediments as a bioavailability indicator

Biomonitoreo De Metales Pesados en Plumas De Aves Acuáticas Residentes Del Lago De Chapala, México

Spatial and Seasonal Distribution of Cadmium and Lead in Sediment, Water and Its Response of Metal Transcription Factor-1 in Cardinal Fish Apogon beauforti

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