Banca de QUALIFICAÇÃO: BRUNO CÉSAR DIAS DE ALBUQUERQUE

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : BRUNO CÉSAR DIAS DE ALBUQUERQUE
DATE: 22/09/2021
TIME: 14:00
LOCAL: Vídeo Conferência
TITLE:

CONCENTRATION AND INFLUENCEMENT ASPECTS OF RADONIUM GAS EMANATION IN TWO AREAS IN THE PLATEAU OF BORBOREMA

KEY WORDS:

Diffusion of ²²²Rn; Weather variables; Natural Radioactivity; Monitoring; Legislation; Plateau of Borborema.

PAGES: 92
BIG AREA: Outra
AREA: Ciências Ambientais
SUMMARY:

Radon is a colorless and odorless radioactive gas, it is the heaviest of all noble gases of natural origin. Rocks and soils with high concentrations of Uranium and Thorium are the main sources of Radon. Waters, especially underground waters that are in direct contact and confined between soils and rocks, can also contain high levels of Radon. Researches prove its carcinogenic power. Other studies try to establish relationships of aspects that can influence the diffusion of gas to the Atmosphere. In Brazil, the subject is little researched and in terms of legislation it comes down to the scope of the exploration of Uranium and Nuclear Energy. The main objectives of the research are to assess whether meteorological variables and plant biomass variation explain the pattern of radon emission in different climatic periods, and to assess how Brazilian legislation and environmental standards address radon in different geochemical compartments in order to suggest aspects to foster monitoring and mitigation policies. Through bibliographical and documentary research, where systematic mapping methodology for Environmental Sciences will be used. In addition, field measurements and soil and rock collections in the municipalities of Bananeiras/PB and Cuité/PB located in the State of Paraíba, application of the statistical model, vegetation analysis through vegetation indices. The results confirm that the behavior of Radon can indeed be influenced by meteorological factors, but the data showed that apparently, the power of influence is only punctual. Vegetation analysis using NDVI did not show the influence of vegetation. Apparently, the analyzed characteristics are not capable of superposing, at least for the studied areas, the background radioactivity profile for each location.

BANKING MEMBERS:
Interno - 2966354 - DIOGENES FELIX DA SILVA COSTA
Externo ao Programa - 2042352 - FREDERICO CASTRO JOBIM VILALVA
Presidente - 1298966 - RAQUEL FRANCO DE SOUZA