Radon exhalation rate measurement in Amazon forest soil
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2024
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AIR POLLUTION CONFERENCE BRAZIL; COMMUNITY MODELING AND ANALYSIS SYSTEM SOUTH AMERICA, 5th
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Measurements of terrestrial residual gas emissions are important for investigations of atmospheric, biological, and
geophysical processes. Terrestrial high-frequency flows of the radioactive noble gas 222 Rn are useful for evaluating the
performance of regional atmospheric models through the use of validated radon flux maps. In this sense, this work aims to
validate a laboratory method for determining soil parameters that can influence the flow of 222 Rn in samples collected at the
Amazon Tall Tower Observatory (ATTO). Specifically, the pH and humidity values were determined for three soil types. Although more observations are still necessary, we concluded that, in comparison with works reported in the literature, the exhalation rate is in good agreement for tropical forest soils. However, no clear correlation could be observed between the
222 Rn exhalation rate and soil humidity or pH.
Como referenciar
LAKIS, O.; MORALLES, M.; TOPPIZ, B.; OSTERMANN, C.K.; BUSTILHOS, J.O.V.; SILVA, P.S.C. da. Radon exhalation rate measurement in Amazon forest soil. In: AIR POLLUTION CONFERENCE BRAZIL; COMMUNITY MODELING AND ANALYSIS SYSTEM SOUTH AMERICA, 5th, June 5-7, 2024, São Paulo, SP. Proceedings... Maceió, AL: SEADFLIX SOLUÇÕES, 2024. Disponível em: https://repositorio.ipen.br/handle/123456789/49181. Acesso em: 19 Mar 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.