Correlation study of air pollution and cardio-respiratory diseases through NAA of an atmospheric pollutant biomonitor
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Citações na Scopus
10
Tipo de produção
article
Data de publicação
2014
Título da Revista
ISSN da Revista
Título do Volume
Editora
SPRINGER
Autores
Citação
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, v.299, n.1, p.773-779, 2014
Resumo
In this study neutron activation analysis was applied to analyze lichen samples used as atmospheric pollutant biomonitors in order to verify if there is correlation between air pollution and its effects on the cardio respiratory system. Canoparmelia texana lichenized fungii species was chosen for passive biomonitoring of atmospheric pollutants. The population group selected for this study was adults over 45 years. Lichen samples collected in So Paulo city were cleaned, freeze-dried and ground for the analyses. Aliquots of samples were irradiated at the IEA-R1 nuclear research reactor for short and long periods along with synthetic element standards. The induced gamma activities of the samples and standards were measured using a gamma ray spectrometer with an HPGe detector and the concentrations of As, Ba, Br, Ca, Cd, Cl, Co, Cr, Cs, Fe, Hf, K, Mg, Mn, Na, Rb, Sb, Sc, Se,Th, V, Zn and lanthanides were determined. For quality control of the results, certified reference materials were analyzed together. Mortality data for the population due to cardio-respiratory diseases were obtained from the database of the Secretariat of Health of the So Paulo Municipality for the years 2005-2009. Results obtained point to vehicular and industrial emissions as the origins of pollutants in So Paulo city. The statistical treatment of Pearson's correlation applied to the results of lichen element concentrations and mortality rates indicated significant positive correlation for the elements Co, Mn and Zn for adults.
Palavras-chave
Air pollution biomonitoring, Lichen, Cardio respiratory diseases, Correlation, Neutron activation analysis
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