Olaf Malm

Summary

Publications

  1. doi request reprint Mercury levels in feed and muscle of farmed tilapia
    Daniele Botaro
    Laboratório de Radioisótopos Eduardo Penna Franca, IBCCF, Universidade Federal do Rio de Janeiro, Brazil
    Am J Ind Med 55:1159-65. 2012
  2. doi request reprint Organochlorine pesticides residues in feed and muscle of farmed Nile tilapia from Brazilian fish farms
    Daniele Botaro
    Institute of Biophysic Carlos Chagas Filho, LREPF, CCS UFRJ, Ilha do Fundao, CEP 21941 902 Rio de Janeiro, RJ, Brazil
    Food Chem Toxicol 49:2125-30. 2011
  3. ncbi request reprint Total mercury, organic mercury and selenium in liver and kidney of a South American coastal dolphin
    Tércia G Seixas
    Departamento de Quimica, PUC Rio, 22453 900 Rio de Janeiro, RJ, Brazil
    Environ Pollut 154:98-106. 2008
  4. doi request reprint Mercury transfer during pregnancy and breastfeeding: hair mercury concentrations as biomarker
    Rejane C Marques
    Universidade Federal do Rio de Janeiro, Campus Macaé, Rio de Janeiro, RJ, Brazil
    Biol Trace Elem Res 154:326-32. 2013
  5. pmc Fish consumption during pregnancy, mercury transfer, and birth weight along the Madeira River Basin in Amazonia
    Rejane C Marques
    Federal University of Rio de Janeiro, Campus Macaé, RJ, Brazil
    Int J Environ Res Public Health 10:2150-63. 2013
  6. doi request reprint Inorganic and methylmercury: do they transfer along a tropical coastal food web?
    Helena A Kehrig
    Lab de Radioisótopos Eduardo Penna Franca, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941 902, RJ, Brazil
    Mar Pollut Bull 60:2350-6. 2010
  7. doi request reprint Mercury and selenium in a top-predator fish, Trichiurus lepturus (Linnaeus, 1758), from the tropical Brazilian Coast, Rio de Janeiro
    Tércia G Seixas
    Departamento de Quimica, PUC Rio, Rio de Janeiro, RJ, 22453 900, Brazil
    Bull Environ Contam Toxicol 89:434-8. 2012
  8. doi request reprint Hydroelectric reservoir inundation (Rio Madeira Basin, Amazon) and changes in traditional lifestyle: impact on growth and neurodevelopment of pre-school children
    Rejane C Marques
    Escola de Enfermagem Anna Nery, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
    Public Health Nutr 14:661-9. 2011
  9. doi request reprint Selenium and mercury in widely consumed seafood from South Atlantic Ocean
    Helena A Kehrig
    Lab de Radioisótopos Eduardo Penna Franca, IBCCF, Universidade Federal do Rio de Janeiro, 21941 902 Rio de Janeiro, RJ, Brazil
    Ecotoxicol Environ Saf 93:156-62. 2013
  10. doi request reprint Evaluation of cetacean exposure to organotin compounds in Brazilian waters through hepatic total tin concentrations
    Paulo R Dorneles
    Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofisica Carlos Chagas Filho, CCS, Universidade Federal do Rio de Janeiro, Brazil
    Environ Pollut 156:1268-76. 2008

Collaborators

Detail Information

Publications26

  1. doi request reprint Mercury levels in feed and muscle of farmed tilapia
    Daniele Botaro
    Laboratório de Radioisótopos Eduardo Penna Franca, IBCCF, Universidade Federal do Rio de Janeiro, Brazil
    Am J Ind Med 55:1159-65. 2012
    ..Fish consumption is considered the most important source of contaminant exposure for humans beings, and farmed fish can be exposed to contaminants via feed supply...
  2. doi request reprint Organochlorine pesticides residues in feed and muscle of farmed Nile tilapia from Brazilian fish farms
    Daniele Botaro
    Institute of Biophysic Carlos Chagas Filho, LREPF, CCS UFRJ, Ilha do Fundao, CEP 21941 902 Rio de Janeiro, RJ, Brazil
    Food Chem Toxicol 49:2125-30. 2011
    ..However, the low levels of the sum of contaminants found in most of the feed samples may explain the low contaminant levels in fish tissue...
  3. ncbi request reprint Total mercury, organic mercury and selenium in liver and kidney of a South American coastal dolphin
    Tércia G Seixas
    Departamento de Quimica, PUC Rio, 22453 900 Rio de Janeiro, RJ, Brazil
    Environ Pollut 154:98-106. 2008
    ..The among-site differences we found may be related to differences in preferred prey, bioavailability in the marine environment, environmental conditions, or these individuals may belong to distinct populations...
  4. doi request reprint Mercury transfer during pregnancy and breastfeeding: hair mercury concentrations as biomarker
    Rejane C Marques
    Universidade Federal do Rio de Janeiro, Campus Macaé, Rio de Janeiro, RJ, Brazil
    Biol Trace Elem Res 154:326-32. 2013
    ..Conclusion: The concentration of mercury accumulated in newborn tissues (in utero and during breastfeeding) relevant to both, maternal sources and infant exposure, can be reliably assessed from maternal hair...
  5. pmc Fish consumption during pregnancy, mercury transfer, and birth weight along the Madeira River Basin in Amazonia
    Rejane C Marques
    Federal University of Rio de Janeiro, Campus Macaé, RJ, Brazil
    Int J Environ Res Public Health 10:2150-63. 2013
    ..However, in these Amazonian groups, only maternal education and gestational age seemed to affect birth weight positively...
  6. doi request reprint Inorganic and methylmercury: do they transfer along a tropical coastal food web?
    Helena A Kehrig
    Lab de Radioisótopos Eduardo Penna Franca, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941 902, RJ, Brazil
    Mar Pollut Bull 60:2350-6. 2010
    ..044 μg g(-1)d.w.). Hg(inorg) did not present the same behavior. Results suggest that feeding habits and trophic guild are important parameters, influencing biotransference and biomagnification processes...
  7. doi request reprint Mercury and selenium in a top-predator fish, Trichiurus lepturus (Linnaeus, 1758), from the tropical Brazilian Coast, Rio de Janeiro
    Tércia G Seixas
    Departamento de Quimica, PUC Rio, Rio de Janeiro, RJ, 22453 900, Brazil
    Bull Environ Contam Toxicol 89:434-8. 2012
    ..A large excess of molar selenium in relation to mercury was observed...
  8. doi request reprint Hydroelectric reservoir inundation (Rio Madeira Basin, Amazon) and changes in traditional lifestyle: impact on growth and neurodevelopment of pre-school children
    Rejane C Marques
    Escola de Enfermagem Anna Nery, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
    Public Health Nutr 14:661-9. 2011
    ..To assess the dependence on fish consumption of families and its impact on nutritional status and neurodevelopment of pre-school children...
  9. doi request reprint Selenium and mercury in widely consumed seafood from South Atlantic Ocean
    Helena A Kehrig
    Lab de Radioisótopos Eduardo Penna Franca, IBCCF, Universidade Federal do Rio de Janeiro, 21941 902 Rio de Janeiro, RJ, Brazil
    Ecotoxicol Environ Saf 93:156-62. 2013
    ..A selenium health benefit value based on the absolute amounts and relative proportions of Se and Hg in seafood was proposed as a more comprehensive seafood safety criterion...
  10. doi request reprint Evaluation of cetacean exposure to organotin compounds in Brazilian waters through hepatic total tin concentrations
    Paulo R Dorneles
    Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofisica Carlos Chagas Filho, CCS, Universidade Federal do Rio de Janeiro, Brazil
    Environ Pollut 156:1268-76. 2008
    ..The levels of Sn in six marine tucuxis from a less contaminated area (ES) varied from below detection limit to 744. Comparing to the literature, coastal cetaceans from Brazil appear to be highly exposed to OTs...
  11. doi request reprint Mercury and selenium biomagnification in a Brazilian coastal food web using nitrogen stable isotope analysis: a case study in an area under the influence of the Paraiba do Sul River plume
    Helena A Kehrig
    Laboratório de Radioisótopos Eduardo Penna Franca, IBCCF, Universidade Federal do Rio de Janeiro, 21941 902 Rio de Janeiro, RJ, Brazil Laboratório de Ciências Ambientais, CBB, Universidade Estadual do Norte Fluminense, 28013 602 Campos dos Goytacazes, RJ, Brazil Electronic address
    Mar Pollut Bull 75:283-90. 2013
    ..Simultaneous measurements of trace-elements and ecological tracers emphasize the importance of TP into the trophic structure and distribution of Hg and Se throughout the food web. ..
  12. doi request reprint The relationships between mercury and selenium in plankton and fish from a tropical food web
    Helena do A Kehrig
    Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 21941 902, Rio de Janeiro, Brazil
    Environ Sci Pollut Res Int 16:10-24. 2009
    ..The differences in trace element levels among the different trophic levels were investigated...
  13. doi request reprint Environmental pathways and human exposure to manganese in southern Brazil
    Nadir Hermes
    Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 21041 210Rio de JaneiroRJ, Brasil
    An Acad Bras Cienc 85:1275-88. 2013
    ..Although the contamination appeared to come from a natural origin, the results found in the present study showed that the Mn levels present in the Pardinho River Basin are a relevant public health issue. ..
  14. doi request reprint Distinct bioaccumulation profile of pesticides and dioxin-like compounds by mollusk bivalves reared in polluted and unpolluted tropical bays: consumption risk and seasonal effect
    Petrus Galvao
    Programa de Biofísica Ambiental, Universidade Federal do Rio de Janeiro, 21941 900 Rio de Janeiro, RJ, Brazil
    Food Chem 134:2040-8. 2012
    ..Based on Minimal Risk Level, Maximum Residue, Acceptable Daily Intake and Toxic Equivalent, bivalves are classified as safe for human consumption...
  15. doi request reprint Organochlorine concentrations in franciscana dolphins, Pontoporia blainvillei, from Brazilian waters
    José Lailson-Brito
    Laboratório de Mamíferos Aquáticos e Bioindicadores Profa Izabel Gurgel MAQUA, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro, Rua Sao Francisco Xavier, 524 sala 4002, 20550 013, Maracana, Rio de Janeiro, RJ, Brazil
    Chemosphere 84:882-7. 2011
    ..Considering the endocrine disruptive action of organochlorine compounds, the concentrations found in franciscana dolphins from Brazilian waters may represent an additional obstacle to the conservation of this endangered cetacean species...
  16. ncbi request reprint Polychlorinated biphenyls and DDT in swordfish (Xiphias gladius) and blue shark (Prionace glauca) from Brazilian coast
    Claudio Eduardo de Azevedo e Silva
    Eduardo Penna Franca Laboratório de Radioisótopos, Instituto de Biofisica Carlos Chagas Filho, CCS UFRJ, Rio de Janeiro, RJ, Brazil
    Chemosphere 67:S48-53. 2007
    ..gladius or P. glauca consumption can be considered safe since it contributes to less than 0.1% of the limit of acceptable daily intake (ADI) of summation operator DDT proposed by WHO...
  17. pmc Polycyclic aromatic hydrocarbons assessment in sediment of national parks in southeast Brazil
    Rodrigo Ornellas Meire
    Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofisica Carlos Chagas Filho, Bloco G Centro de Ciências da Saúde, Universidade Federal do Rio Janeiro Ilha do Fundão, 21949 900 Rio de Janeiro RJ, Brazil
    Chemosphere 73:S180-5. 2008
    ..At PNIT and PNJUB, forest fires and slash and burn agricultural practices may drive the results towards a pyrolytic pattern...
  18. ncbi request reprint Ecological and biological determinants of trace elements accumulation in liver and kidney of Pontoporia blainvillei
    Tércia G Seixas
    Departamento de Quimica, PUC Rio, 22453 900 Rio de Janeiro, RJ, Brazil
    Sci Total Environ 385:208-20. 2007
    ..As a consequence, concentrations of trace elements in the tissues of this species can be considered to be a result of the surrounding environment...
  19. pmc Trophic relationships and habitat preferences of delphinids from the southeastern Brazilian coast determined by carbon and nitrogen stable isotope composition
    Tatiana Lemos Bisi
    Laboratório de Mamíferos Aquáticos e Bioindicadores Profa Izabel Gurgel MAQUA, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro UERJ, Rio de Janeiro, RJ, Brazil Programa de Pós graduação em Ecologia, Universidade Federal do Rio de Janeiro UFRJ, Rio de Janeiro, RJ, Brazil Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro UFRJ, Rio de Janeiro, RJ, Brazil
    PLoS ONE 8:e82205. 2013
    ....
  20. doi request reprint Sequential hair mercury in mothers and children from a traditional riverine population of the Rio Tapajós, Amazonia: seasonal changes
    Olaf Malm
    Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
    Environ Res 110:705-9. 2010
    ..The changes in the aquatic environment impacted fish species availability, which is reflected in the total and MeHg concentrations in hair...
  21. doi request reprint Poor psychometric scores of children living in isolated riverine and agrarian communities and fish-methylmercury exposure
    Márlon de F Fonseca
    Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
    Neurotoxicology 29:1008-15. 2008
    ..Global strategies for reducing human exposure to MeHg by curtailing fish consumption are unrealistic options for riverine subsistence populations and are not justifiable to prevent low cognitive scores...
  22. ncbi request reprint Cephalopods and cetaceans as indicators of offshore bioavailability of cadmium off Central South Brazil Bight
    Paulo Renato Dorneles
    Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
    Environ Pollut 148:352-9. 2007
    ..29 microg/g, wet weight). Anthropogenic action, upwelling and cannibalism of Argentine short-finned squid on the studied area are possible reasons for such remarkable cadmium concentrations...
  23. ncbi request reprint Methylmercury in a predatory fish (Cichla spp.) inhabiting the Brazilian Amazon
    Helena do A Kehrig
    Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro UFRJ, 21941 902 Rio de Janeiro, Brazil
    Environ Pollut 154:68-76. 2008
    ..In all sampling areas, the %MeHg was found to be higher than 70...
  24. doi request reprint Effect of Brazil nut supplementation on plasma levels of selenium in hemodialysis patients: 12 months of follow-up
    Milena B Stockler-Pinto
    Health Science Centre, Institute of Biophysic Carlos Chagas Filho, Federal University of Rio de Janeiro UFRJ, Rio de Janeiro RJ, Brazil
    J Ren Nutr 22:434-9. 2012
    ..It has been proposed that selenium (Se) may exert an antiatherogenic influence by reducing oxidative stress. The richest known food source of Se is the Brazil nut (Bertholletia excelsa, family Lecythidaceae), found in the Amazon region...
  25. ncbi request reprint Tissue distribution, subcellular localization and endocrine disruption patterns induced by Cr and Mn in the crab Ucides cordatus
    José Dias Corrêa
    Programa de Pós Graduação em Ciências Morfológicas, Instituto de Ciencias Biomedicas, Universidade Federal do Rio de Janeiro, 21941 590 Rio de Janeiro, RJ, Brazil
    Aquat Toxicol 73:139-54. 2005
    ..The results are discussed with respect to sensitivity of the employed methods and the possible significance of the concentrations of Cr and Mn in the organisms...
  26. ncbi request reprint Organic micropollutants on river sediments from Rio de Janeiro State, Southeast Brazil
    Joao Paulo Machado Torres
    Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofisica Carlos Chagas Filho, Centro de Ciencias da Saude, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941 900, Brasil
    Cad Saude Publica 18:477-88. 2002
    ..However, the PAHs levels were high at the vicinity of a huge steelworks located in the city of Volta Redonda. This contamination is probably due to the massive use of coal in the above-cited metallurgical plant...