Search Results - "Pfeiffer, W. C."

Lignin phenols used to infer organic matter sources to Sepetiba Bay – RJ, Brasil by Rezende, C.E., Pfeiffer, W.C., Martinelli, L.A., Tsamakis, E., Hedges, J.I., Keil, R.G.

“…Lignin phenols were measured in the sediments of Sepitiba Bay, Rio de Janeiro, Brazil and in bedload sediments and suspended sediments of the four major…”
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Heavy metals in benthic organisms from Todos os Santos Bay, Brazil by Amado-Filho, G M, Salgado, L T, Rebelo, M F, Rezende, C E, Karez, C S, Pfeiffer, W C

“…The marine ecosystems of Todos os Santos Bay (TSB, The State of Bahia, Brazil) have been impacted by the presence on its coast of a large metropolitan area as…”
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Comparative Uptake, Bioaccumulation, and Gill Damages of Inorganic Mercury in Tropical and Nordic Freshwater Fish by Oliveira Ribeiro, C.A., Pelletier, E., Pfeiffer, W.C., Rouleau, C.

“…This paper reports comparative results on the bioaccumulation of inorganic mercury and resulting gill damages in the tropical fish, Trichomycterus zonatus, and…”
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Human exposure to mercury due to goldmining in the Tapajos River basin, Amazon, Brazil: speciation of mercury in human hair, blood and urine by Akagi, H, Malm, O, Branches, F.J.P, Kinjo, Y, Kashima, Y, Guimaraes, J.R.D, Oliveira, R.B, Haraguchi, K, Pfeiffer, W.C, Takizawa, Y

“…To obtain the basic information on human exposure to mercury (Hg) due to gold mining activities in Amazon, total mercury (T-Hg) and methylmercury (MeHg) were…”
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Oyster condition index in Crassostrea rhizophorae (Guilding 1828) from a heavy-metal polluted coastal lagoon by Rebelo, M F, Amaral, M C R, Pfeiffer, W C

“…The condition index (CI) of oysters represents an ecophysiological approach to estimate meat quality and yield in cultured bivalve mollusks. In the present…”
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Effects of milk yield on biological efficiency and profit of beef production from birth to slaughter by Miller, S.P, Wilton, J.W, Pfeiffer, W.C

“…Effect of milk yield (MY) on biological efflciency and gross margin as an indicator of profit potential of beef production from birth to slaughter was…”
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Brown algae species as biomonitors of Zn and Cd at Sepetiba Bay, Rio de Janeiro, Brazil by Amado Filho, G.M., Andrade, L.R., Karez, C.S., Farina, M., Pfeiffer, W.C.

“…In order to contribute to monitoring heavy metal contamination of Sepetiba Bay, Rio de Janeiro, Brazil, long term evaluation of Zn and Cd concentration was…”
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Arsenic contamination and dispersion in the Engenho inlet, Sepetiba Bay, SE, Brazil by MAGALHAES, V. F, CARVALHO, C. E. V, PFEIFFER, W. C

“…Arsenic distribution and dispersion in sediments of the EngenhoInlet and the Sepetiba Bay were investigated in order to evaluate the extent of the…”
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Follow-up of mercury levels in fish, human hair and urine in the Madeira and Tapajos basins, Amazon, Brazil by MALM, O, GUIMARAES, J. R. D, CASTRO, M. B, BASTOS, W. R, VIANA, J. P, BRANCHES, F. J. P, SILVEIRA, E. G, PFEIFFER, W. C

“…Informal economy of gold mining has contaminated some important river basins in Amazon. Follow-up studies on critical compartments showed some areas with high…”
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Non-Farm Rural Ontario Residents' Perceived Quality of Life by Richmond, L., Filson, G.C., Paine, C., Pfeiffer, W.C., Taylor, J.R.

“…This paper presents a study of Ontario non-farm rural residents' perceived quality of life. The research sought to understand residents' perceived quality of…”
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Accumulation and Distribution of Inorganic Mercury in a Tropical Fish (Trichomycterus zonatus) by Ribeiro, C.A.Oliveira, Guimarães, J.R.D., Pfeiffer, W.C.

“…Different aspects of mercury accumulation, retention, and elimination in temperate fish species have been reported, but few data are available for tropical…”
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Effects on Growth and Accumulation of Zinc in Six Seaweed Species by Amado Filho, Gilberto M., Karez, Claudia S., Andrade, Leonardo R., Yoneshigue-Valentin, Yocie, Pfeiffer, Wolfgang C.

“…Seaweed species from a coastal area contaminated by heavy metals (Sepetiba Bay) in Rio de Janeiro State (Brazil) presented different levels of Zn…”
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Mercury pollution due to gold mining in the Madeira river basin, Brazil by MALM, O, PFEIFFER, W.C, SOUZA, C.M.M, REUTHER, R

“…New results from an extensive survey on the mercury concentration in different environmental compartments (river water, suspended and bottom sediments, soil,…”
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Development of sediment toxicity test with tropical peneid shrimps by Moraes, Rosane B. C., Pfeiffer, Wolfgang C., Guimarães, Jean R. D., Borges, Alexandre Luiz N., Campos, Alexandre N.

“…A methodology to test the toxicity of marine and estuarine sediments was developed using postlarval organisms of the marine shrimp Penaeus schmitti and P…”
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Mercury dispersal in water, sediments and aquatic biota of a gold mining tailing deposit drainage in pocone, Brazil by LACERDA, L. D, PFEIFFER, W. C, MARINS, R. V, RODRIGUES, S, SOUZA, C. M. M, BASTOS, W. R

“…In the Pocone district, Brazil, Hg distribution was studied in a small watershed which drains tailings from a 10 yr old gold mining operation. Heavy regional…”
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Mercury Distribution in Sediment Profiles from Lakes of the High Pantanal, Mato Grosso State, Brazil by de Lacerda, L. D., Salomons, W., Pfeiffer, W. C., Bastos, W. R.

“…Sediment cores from lakes located in the Pantanal Swamp, Central Brazil were analysed for the distribution of mercury released by the local gold mining…”
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Exposure to metallic mercury in workers in a tropical chloralkali plant evaluated through urine analysis, Rio de Janeiro, Brazil by MALM, O, CALASANS, C. F, FERNANDES, A. P, BASTOS, W. R, PFEIFFER, W. C

“…Occupational exposure to Hg vapour was investigated in 78 workers during three periods with different temperatures: August 1991, December 1991, and February…”
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Mercury concentrations in inland waters of gold-mining areas in Rondônia, Brazil by Pfeiffer, W C, de Lacerda, L D, Malm, O, Souza, C M, da Silveira, E G, Bastos, W R

“…Total mercury concentrations in water, sediments and fish from the gold-mining areas of Brazil, especially the Amazon region, are presented. Mercury…”
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Study of zinc and growth hormone in sickle cell disease by Oliveira, P M, Póvoa, L C, Oliveira, M H, Pfeiffer, W C

“…About 25% of children with sickle cell disease (SCD) have statural deficit and retarded skeletal maturation and pubertal development. These disorders have been…”
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Heavy metal transport in the Acarí-São João de Merití River System, Brazil by Rego, V.S., Pfeiffer, W.C., Barcellos, C.C., Rezende, C.E., Malm, O., Souza, C.M.M.

“…Discharge of heavy metals from the Acari-São João de Merití River System into Guanabara Bay and the physico-chemical mechanisms involved in the transport of…”
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