DOI: 10.11606/d.85.2008.tde-21092009-104759
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Determinação de isótopos de urânio e tório em amostras de líquens canoparmelia texana

Abstract: Agradeço à Dra. Barbara Paci Mazzilli, minha orientadora neste trabalho, por toda a orientação, sugestões e correções pertinentes, na parte experimental e escrita e por acreditar no meu potencial. À Dra. Linda Caldas, por todo apoio, incentivo e seriedade. À Dra. Brigitte por todo incentivo, ajuda e empenho para a melhoria da qualidade dos meus resultados. À Dra. Mitiko Saiki pelo apoio, auxilio nas primeiras coletas de liquens e por estar sempre esclarecendo as minhas dúvidas.A Dra. Marlene Sotto Mayor por to… Show more

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Cited by 2 publications
(3 citation statements)
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“…In areas of extraction, processing and coal burning, the application of the passive biomonitoring method focusing on radioactive elements becomes attractive as the use of bio-indicators offers some advantages when compared to conventional methods for air monitoring. This is because they provide information about continuous accumulation of radioactive elements over the time, whereas the sampling of air, rainwater and the material deposited on the filters and collectors provide instantaneous and prompt information regarding a period corresponding only to the sampling time (Alencar, 2008). For example, many moss species live for 2e5 years, allowing their application in long-term studies (Sert et al, 2011).…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…In areas of extraction, processing and coal burning, the application of the passive biomonitoring method focusing on radioactive elements becomes attractive as the use of bio-indicators offers some advantages when compared to conventional methods for air monitoring. This is because they provide information about continuous accumulation of radioactive elements over the time, whereas the sampling of air, rainwater and the material deposited on the filters and collectors provide instantaneous and prompt information regarding a period corresponding only to the sampling time (Alencar, 2008). For example, many moss species live for 2e5 years, allowing their application in long-term studies (Sert et al, 2011).…”
Section: Introductionmentioning
confidence: 99%
“…In Brazil, some researchers reported the efficiency of lichens as bioindicators of the air pollution by radionuclides in areas of fertilizer production (Alencar, 2008;Leonardo et al, 2013), affected by a thermoelectric plant (Martins et al, 2008) and close to a lead and tin industries (Leonardo et al, 2011). There isn't any investigation to evaluate the air pollution by radionuclides using lichens, mosses and ferns as bio-indicators in Paran a State, southern Brazil, where there is the third largest coal reserve of the country.…”
Section: Introductionmentioning
confidence: 99%
“…A concentração do radionuclídeo de interesse na amostra foi determinada a partir da área líquida do pico do radionuclídeo de sua emissão alfa, presente no espectro alfa. O cálculo de concentração do radionuclídeo foi determinado conforme a equação 3 (Alencar, 2008). O cálculo da concentração da amostra foi determinado pela equação 5 (Leonardo, 2004).…”
Section: Espectrometria Alfa: Princípios Do Métodounclassified