Hg methylation in sediments and floating meadows of a tropical lake in the Pantanal floodplain, Brazil

Science of the Total Environment

Volumn 213, Issue 1-3, 1998, Pages 165-175

  Guimarães, Jean R D ^a   Meili, Markus ^b   Malm, Olaf ^a   Maria De Souza Brito, Elcia ^a  

^a FEDERAL UNIVERSITY OF RIO DE JANEIRO   (Brazil)

^b UPPSALA UNIVERSITY   (Sweden)

Author keywords

Aquatic macrophyte stands; Bioturbation; Brazil; Hg methylation; Pantanal; Sulphate reducing bacteria

Indexed keywords

MERCURY 203; METHYLMERCURY; SODIUM CHLORIDE; TOLUENE;

LAKE WATER QUALITY; MERCURY; SEDIMENT POLLUTION; TROPICS;

ARTICLE; BRAZIL; CHIRONOMIDAE; INSECT; LAKE; METHYLATION; MINING; NONHUMAN; PHYTOPLANKTON; PRIORITY JOURNAL; RIVER; SEASON; SEDIMENT; SULFATE REDUCING BACTERIUM; WATER TEMPERATURE;

BRAZIL, MATO GROSSO STATE, PANTANAL;

BACTERIA (MICROORGANISMS); CHIRONOMIDAE; EICHHORNIA AZUREA; HEXAPODA; INSECTA; SALVINIA;

EID: 0037768277     PISSN: 00489697     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0048-9697(98)00089-8     Document Type: Article

References (26)

1. Bloom NS, Colman JA, Barber L. Artifact formation of methyl mercury during extraction of environmental samples by distillation. In: Fourth International Conference on Hg as a Global Pollutant, Hamburg, Germany, 4-8 Aug. 1996, Abstracts, 1996:51.
2. Cetem/CNPq. Poconé: um campo de estudo do impacto ambiental do garimpo. Série Tecnologia Ambiental, no. 1, Rio de Janeiro, 1991:113 (in Portuguese).
3. Gilmour CC, Riedel GS Measurement of Hg methylation in sediments using high specific activity 203-Hg and ambient incubation. Water Air Soil Pollut. 80:1995;747-756.
4. Gilmour CC, Gill GA, Stordal MC, Spiker E. Mercury methylation and sulfur cycling in the Northern Everglades. In: Fourth International Conference on Hg as a Global Pollutant, Hamburg, Germany, 4-8 Aug. 1996, Abstracts, 1996:166.
5. Guimarães JRD, Malm O, Pfeiffer WC A simplified radiochemical technique for measurement of net mercury methylation rates in aquatic systems near goldmining areas, Amazon, Brazil. Sci Total Environ. 172:1995;151-162.
6. Guimarães JRD, Malm O, Padovani C, Sanches MV, Forsberg B, Pfeiffer WC. A summary of data on net mercury methylation rates in sediment, water, soil and other samples from the Amazon region obtained through radiochemical methods. In: Proceedings of the International Workshop on Environmental Mercury Pollution and its Health Effects in Amazon River Basin, Rio de Janeiro, Nov. 30-Dec. 2, 1994, 1995b:94-99.
7. Guimarães JRD, Roulet M, Lucotte M. Seasonal and spatial variations of Hg net methylation in a floodplain lake of the Tapajós river, Brazil. In: Fourth International Conference on Mercury as a Global Pollutant, Hamburg, Aug. 1996, Abstracts 1996:418.
8. Hylander LD, Silva EC, Oliveira LJ, Silva SA, Kuntze EK, Silva DX Mercury levels in Alto Pantanal: a screening study. Ambio. 23:1994;478-484.
9. Jensen S, Jernelöv A Biological methylation of mercury in aquatic organisms. Nature. 223:1969;753-754.
10. Jorgensen BB, Bak F Pathways and microbiology of thiosulphate transformation and sulphate reduction in a marine sediment (Kattegat, Denmark). Appl Environ Microbiol. 53:1991;847-856.
11. Junk WJ. Aquatic plants of the Amazon system. In: Davies EP, Walker RF, editors. The Ecology of River Systems. Dordrecht, The Netherlands: Junk, 1986a.
12. Junk WJ Investigations on the ecology and production biology of the 'Floating Meadows' Paspalo - Echinochloetum on the Middle Amazon. I. The floating vegetation and its ecology. Amazoniana. 2((4)):1986;449-495.
13. Lacerda LD, Pfeiffer WC, Marins RV, Rodrigues S, Souza CMM, Bastos WR Mercury dispersal in water, sediment and aquatic biota of a gold mining tailings drainage in Poconé, Brazil. Water Air Soil Pollut. 56:1991;785-796.
14. Lovley D, Klug MJ Sulphate-reducers can outcompete methanogens at freshwater sulphate concentrations. Appl Environ Microbiol. 45:1983;187-192.
15. Magalhães NC de. Conheça o Pantanal. Terragraph, S. Paulo, 1992:390 (in Portuguese).
16. Malm O, Pfeiffer WC, Souza CMM, Reuther R Mercury pollution due to gold mining in the Madeira river basin, Brazil. Ambio. 19:1990;11-15.
17. Malm O, Akagi H, Guimarães JRD, Bastos WR, Costa LS, Torres JPM. Data on mercury and methyl mercury in environmental and human samples from new study areas in Brazil: Balbina Reservoir and Poconé (Pantanal wetland). JICA/NIMD, Minamata, Japan, Proceedings of the International Workshop on the Fate of Mercury in Gold Mining and Measures to Control the Environmental Pollution in Various Countries, Jakarta, Indonesia, 25-27 November 1996, 1996a.
18. Malm O, Guimarães JRD, Castro MB, Bastos WR, Viana JP, Branches FJP, Silveira EG, Pfeiffer WC. Follow-up of mercury levels in fish, human hair and urine in the Madeira and Tapajós basins, Amazon, period 1990-95. In: Proceedings of the Fourth International Conference on Mercury as a Global Pollutant, Hamburg, Aug. 1996, 1996b:10.
19. Meili M. Mercury in lakes and rivers. In: Sigel H, Sigel A, editors. Mercury and its Effects on Environment and Biology. Metal Ions in Biological Systems. Vol. 34, Chapter 2. New York: Marcel Dekker, 1996:21-51.
20. Regnell O. Mercury methylation in the water of a stratified meso-eutrophic lake: role of dissolved oxygen, microbial composition and biomass. In: Methyl Mercury in Lakes: Factors Affecting its Production and Partitioning Between Water and Sediment. Ph.D. Thesis, Dept. of Ecology, Chemical Ecology and Ecotoxicology, Lund University, Sweden, 1995.
21. Regnell O, Tunlid A, Ewald G, Sangfors O. Methyl mercury in freshwater microcosms affected by dissolved oxygen levels: role of cobalamin and microbial community composition. Can J Fish Aquat Sci, 1996:53.
22. Rodrigues FS, Maddock JEL. Assessment of the heavy metal pollution in a gold garimpo. CETEM/CNPq, Rio de Janeiro, 1995, Série Tecnologia Ambiental, n°. 7, 1995:32.
23. Sioli H. Amazonia: fundamentos de ecologia da maior região de florestas tropicais. Vozes, Petrópolis, 1990:72 (in Portuguese).
24. Stordal MC, Gill GA Determination of mercury methylation rates using a 203-Hg radiotracer technique. Water Air Soil Pollut. 80:1995;725-734.
25. Vieira LM. Avaliação dos níveis de Mercúrio na cadeia trófica como indicador de sua biomagnificação em ambientes aquáticos da região do Pantanal. Ph.D. Thesis, São Carlos Federal University, Brazil, 1991:214 (in Portuguese).
26. Watras CJ, Bloom NS, Claas SA, Morrisson KA, Gilmour CC, Craig SR Methylmercury production in the anoxic hypolimnion of a dimictic seepage lake. Water Air Soil Pollut. 80:1995;735-745.