Mercury distribution in sediment profiles from lakes of the high pantanal, Mato Grosso State, Brazil

Lacerda, Luiz Drude de; Salomons, W.; Pfeiffer, Wolfgang C.; Bastos, Wanderley Rodrigues

doi:10.1007/bf00002899

Cited by 57 publications

(30 citation statements)

References 10 publications

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“…Mol et al (2001) already compared mercury data from fish from Suriname with data from Brazil. From Brazil high mercury levels in both gold mining areas (e.g., Pfeiffer et al 1989;Lacerda et al 1994;Malm et al 1997) and non-gold mining areas (Lacerda et al 1991;Silva-Forsberg et al 1999) are reported.…”

Section: Fishmentioning

confidence: 99%

“…Mercury pollution related to small-to medium-scale gold mining is a problem over large areas of the Amazon Basin and adjacent countries (Lacerda et al 1991). Richard et al (2000) present data for French Guiana, where gold mining was present over most of the country, showing values that are comparable to the values from (non-lake) gold mining areas in Suriname.…”

Section: Fishmentioning

confidence: 99%

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Mercury Levels in Pristine and Gold Mining Impacted Aquatic Ecosystems of Suriname, South America

Ouboter

Landburg

Quik³

et al. 2012

AMBIO

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Mercury levels in sediment and predatory fish were measured for 53 localities in Suriname. The average mercury level in bottom sediment surpassed the Canadian standard for sediment in most localities, except the coastal plains. Of the predatory fish, 41 % had a mercury level above the European Union standard for human consumption of 0.5 lg g -1 . Highest mercury levels were found in fish from the Brokopondo Reservoir and from the Upper Coppename River. High levels of mercury in fish in pristine areas are explained by atmospheric transportation of mercury with the northeastern trade winds followed by wet deposition. Contrary to gold mining areas, where mercury is bound to drifting sediments, in ''pristine'' areas the mercury is freely available for bio-accumulation and uptake. Impacts on piscivorous reptiles, birds, and mammals are unknown, but likely to be negative.

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Section: Fishmentioning

confidence: 99%

Section: Fishmentioning

confidence: 99%

Mercury Levels in Pristine and Gold Mining Impacted Aquatic Ecosystems of Suriname, South America

Ouboter

Landburg

Quik³

et al. 2012

AMBIO

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“…Em um estudo realizado no Rio Bento Gomes, Mato Grosso, Lacerda et al (1991) . Bidone et al (1997b), no Rio Tapajós no Estado do Pará, analisaram 238 peixes de 9 espécies carnívoras e 6 não carnívoras adquiridos nos mercados locais e encontraram concentrações médias de 0,42 μg.g -1 para carnívo-ros e 0,062 μg.g -1 para não carnívoros -concentrações superiores às encontradas no presente trabalho.…”

Section: Concentração De Metaisunclassified

Mercúrio, cromo, cádmio e chumbo em Pygocentrus Nattereri Kner, 1858 e Prochilodus Lineatus (Valenciennes, 1836) de Dois Rios do Pantanal (MT), Brasil

Filho

Lino

Malm

et al. 2016

Rev. Bras. Ciênc. Ambient. (Online)

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RESUMOO estudo foi realizado na Bacia do Alto Paraguai, no Pantanal Mato-Grossense, Brasil, e teve como objetivo determinar as concentrações de mercúrio total (THg), cromo (Cr), cádmio (Cd) e chumbo (Pb) ABSTRACTThe research was conducted in the Upper Paraguay Basin, Pantanal, Mato Grosso, Brazil. This research aimed to evaluate the total mercury (THg), chromium (Cr), cadmium (Cd), and lead (Pb) concentrations in fish tissue. The Upper Paraguay Basin is target of several anthropogenic aggressions, which directly affects its aquatic ecosystem, like the burning of native vegetation, gold exploration, or even the strong exploitation of fish stocks. A total of 78 individuals of 2 different species (44 Pygocentrus nattereri and 34 Prochilodus lineatus) were caught from the Paraguay and Cuiabá rivers. To quantify the THg concentrations it was used an atomic absorption spectrophotometer, Perkin Elmer (FIMS -system), while the readings of Cr, Cd and Pb were performed on an atomic absorption spectrophotometer (AAS-F). The analyzed samples of P. nattereri showed THg concentrations in the muscle between 0.999 and 0.597 μg.g The results for Cr have revealed that 95.45% of P. nattereri and 97.05% of P. lineatus present Cr concentrations above the limits established by the legislation. Cd and Pb concentrations in the muscles of the fish collected showed values under the upper limit for the Brazilian legislation.

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“…Em um estudo realizado no Rio Bento Gomes, Mato Grosso, Lacerda et al (1991) (JORDÃO et al, 1997;IKEM, et al, 2003;MIRANDA-FILHO et al, 2011). Concentrações de Cr acima do limite máximo permitido causam déficit de natação, irregularidade na respiração e na alimentação, ulcerações e morte nos peixes; (BURGER et al, 2001;REPULA et al, 2012) e, no homem, as principais consequências são a alteração no ciclo celular e o câncer (SILVA & PEDROZO, 2001).…”

Section: Para Os Exemplares Deunclassified

Untitled

2016

Rev. Bras. Ciênc. Ambient. (Online)

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R e v i s t a B r a s i l e i r a d e C i ê n c i a s A m b i e n t a i s Editor GeralMaurício Dziedzic Editores InternacionaisGünter Gunkel -Alemanha Jose Alfaro Joins -EUA Manuela Morais -Portugal Oscar Parra -Chile Editores NacionaisAdriana Fundamental para esse processo foi a adoção de um processo de pré-seleção dos artigos para que cada editor pudesse analisar rapidamente as submissões e definir se devem seguir para o processo de revisão, ou se devem ser rejeitadas.A função da revista é a divulgação científica. Para tanto, é essencial que os trabalhos submetidos tragam contribuição científica para a área. Trabalhos de aplicação de princípios conhecidos não representam contribuição científica e não são aceitos para publicação.A tabela com os critérios de avaliação de artigos, disponível no regulamento da revista -em http://abes-dn.org.br/ publicacoes/rbciamb/Regulamento%20RBCiamb.pdf -, apresenta uma lista detalhada dos itens que são verificados. É recomendável que os autores utilizem esses critérios para efetuar a autoavaliação de seus trabalhos antes da submissão, pois a observância desses critérios pode acelerar substancialmente o processo de revisão.Encerrando mais um ano, aproveito para agradecer o excelente trabalho voluntário realizado pelos editores e revisores em prol das Ciências Ambientais. A lista completa de editores e revisores que colaboraram com a RBCiAmb em 2016 é apresentada no final da revista. ABSTRACTVehicles are the main source of air pollutants in urban centers. The most important technologies for the reduction of vehicle pollutants have been the electronic control of fuel injection and the use of catalytic converters in the exhaust system of vehicles. The goal of this work was to evaluate if the renewal of the vehicle fleet altered the air quality in Curitiba. A survey of historical concentrations of air pollutants was performed for the period of 2003 to 2014. It was also carried out the survey of the history of the fleet of vehicles in Curitiba, based on data from the transit department of Paraná (DETRAN-PR). There was a 65% increase in the number of vehicles, which did not result in an increase in the concentration of pollutants. The values of air pollutant concentrations show a decrease over the surveyed period. The conclusion is that the renewal of the fleet provided an improvement of the air quality in Curitiba.Keywords: vehicle emissions; air pollutants; air pollution indexes. INTRODUÇÃOA emissão de poluentes atmosféricos em grandes centros está relacionada à frota veicular que circula pelas vias, e a idade dos veículos é um fator determinante para a qualidade do ar (KUHNS et al., 2004; KRECL et al., 2015). Isso porque conduções com maior desgaste de peças e com tecnologias ultrapassadas podem contribuir com até 34% da emissão total de CO, NO e hidrocarbonetos em uma cidade (GUO et al., 2006). Além dos automóveis, as motocicletas possuem um papel importante nas emissões atmosféricas. Em estudo sobre motocicletas de Taiwan, Tsai et al. (2000) investigaram as emissões de CO, N...

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Mercury distribution in sediment profiles from lakes of the high pantanal, Mato Grosso State, Brazil

Cited by 57 publications

References 10 publications

Mercury Levels in Pristine and Gold Mining Impacted Aquatic Ecosystems of Suriname, South America

Mercury Levels in Pristine and Gold Mining Impacted Aquatic Ecosystems of Suriname, South America

Mercúrio, cromo, cádmio e chumbo em Pygocentrus Nattereri Kner, 1858 e Prochilodus Lineatus (Valenciennes, 1836) de Dois Rios do Pantanal (MT), Brasil

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