2011
DOI: 10.1021/es201152g
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Role of Vegetation in Enhancing Radon Concentration and Ion Production in the Atmosphere.

Abstract: The role of ions in the production of atmospheric particles has gained wide interest due to their profound impact on climate. Away from anthropogenic sources, molecules are ionized by alpha radiation from radon exhaled from the ground and cosmic γ radiation from space. These molecular ions quickly form into "cluster ions", typically smaller than about 1.5 nm. Using our measurements and the published literature, we present evidence to show that cluster ion concentrations in forest areas are consistently higher … Show more

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Cited by 23 publications
(31 citation statements)
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“…A higher value of the activity of radon (50-60 Bq m −3 ) was observed in this series and this may be due to rocky hills and dense vegetation around the study region (Jayaratne et al 2011). The pattern immediately indicates conditions of high nocturnal stability and temperature inversions in early morning hours and good daytime mixing conditions, especially in the afternoon hours.…”
Section: Nocturnal Stability and Mixing Processesmentioning
confidence: 46%
“…A higher value of the activity of radon (50-60 Bq m −3 ) was observed in this series and this may be due to rocky hills and dense vegetation around the study region (Jayaratne et al 2011). The pattern immediately indicates conditions of high nocturnal stability and temperature inversions in early morning hours and good daytime mixing conditions, especially in the afternoon hours.…”
Section: Nocturnal Stability and Mixing Processesmentioning
confidence: 46%
“…O intervalos de 5 dias de medições para o experimento em questão se deu baseado na literatura em relação as medições de Radônio e íons atmosféricos, uma vez que a meia-vida do Rn-222 é de aproximadamente 3,82 dias; portanto, a amostragem é consistente a outros estudos (Jayaratne et al 2011).…”
Section: Base De Dadosunclassified
“…Em regiões semiáridas, as concentrações podem exceder várias centenas g/g (Bowie e Plant, 1983). A existência de gás Radônio na atmosfera é devido ao transporte desse gás no ar e dissolvido na água subterrânea por evapotranspiração árvore, uma vez que a radiação alfa e beta da desintegração de gás Radônio que emana diretamente dos solos e rochas tem pouco poder de penetração na atmosfera (Jayaratne, et al 2011).…”
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