Meteorological factors influencing the 7Be and 210Pb concentrations in surface air from the southwestern Iberian Peninsula

Lozano, R.L.; Hernández-Ceballos, M.A.; Miguel, E.G. San; Adame, José Antonio; Bolı́var, J.P.

doi:10.1016/j.atmosenv.2012.09.052

Cited by 37 publications

(28 citation statements)

References 27 publications

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“…Other studies, e.g. Dueñas et al (1999Dueñas et al ( , 2009, Lozano et al (2012), Kusmierczyk-Michulec et al (2015), found little or no evidence of an inverse relationship between wind speed and 7 Be concentration. However, in this study, the relationship found between wind speed, the 7 Be row data and the irregular component is significant and negative.…”

Section: 1mentioning

confidence: 85%

Analysis of the influence of solar activity and atmospheric factors on 7Be air concentration by seasonal-trend decomposition

Bas

Ortiz

Ballesteros

et al. 2016

Atmospheric Environment

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Section: 1mentioning

confidence: 85%

Analysis of the influence of solar activity and atmospheric factors on 7Be air concentration by seasonal-trend decomposition

Bas

Ortiz

Ballesteros

et al. 2016

Atmospheric Environment

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“…This indicates that 7 Be dominates in this comparison due to a higher intensity of vertical convection of air in summer season when the air masses rich in cosmogenic 7 Be from the upper atmospheric layers reach the earth surface. Lozano et al (2012) reported 7 Be/ 210 Pb ratios 2.6e48.9, higher values being in spring and summer, and lower values in winter months. The continental and marine influences were discussed in several papers, e.g.…”

Section: Be and 210 Pb Variationsmentioning

confidence: 94%

Long-term variations of radionuclides in the Bratislava air

Sýkora

Holý

Ješkovský

et al. 2017

Journal of Environmental Radioactivity

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“…In this sense, the differences in the synoptic weather patterns is well-known (high and low pressure systems) governing the regional meteorological conditions in Europe during the summer and cold time, and therefore, the arrival of air masses with different pathways and origin over each region (e.g. Lozano et al, 2012).…”

Section: Monthly Index Analysismentioning

confidence: 99%

“…Radon (Bowie and Bowie, 1991)) or because they may act as tracers for atmospheric processes (e.g. 7 Be and 210 Pb (Lozano et al, 2012). Due to their importance, there are worldwide networks for radionuclides measurements (e.g.…”

Section: Introductionmentioning

confidence: 98%

Identification of airborne radioactive spatial patterns in Europe – Feasibility study using Beryllium-7

Hernández-Ceballos

Cinelli

Tollefsen

et al. 2016

Journal of Environmental Radioactivity

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The present study proposes a methodology to identify spatial patterns in airborne radioactive particles in Europe. The methodology is based on transforming the activity concentrations in the set of stations for each month (monthly index), due to the tightly spaced sampling intervals (daily to monthly), in combination with hierarchical and non-hierarchical clustering approaches, due to the lack of a priori knowledge of the number of clusters to be created. Three different hierarchical cluster methodologies are explored to set the optimal number of clusters necessary to initialize the non-hierarchical one (k-means). To evaluate this methodology, cosmogenic beryllium-7 ((7)Be) data, collected between 2007 and 2010 at 19 sampling stations in European Union (EU) countries and stored in the Radioactivity Environmental Monitoring (REM) database, are used. This methodology yields a solution with three distinguishable clusters (south, central and north), each with a different evolution of the (7)Be monthly index. Clear differences between monthly indices are shown in both intensity and time trends, following a latitudinal distribution of the sampling stations. This cluster result is evaluated performing ANOVA analysis, considering the original (7)Be activity concentrations grouped in each cluster. The statistical results (among clusters and sampling stations within clusters) confirm the spatial distribution of (7)Be in Europe, and, hence, reinforce the use of this methodology. Finally, the impact of tropopause height on this grouping is successfully tested, suggesting its influence on the spatial distribution of (7)Be in Europe. For airborne radioactive particles the analysis gave valuable results that improve knowledge of these atmospheric compounds in Europe. Hence, this work addresses a methodology to a grouping of airborne sampling stations, 1) allowing a better understanding of the distribution of (7)Be activity concentrations in the EU, and 2) serving as a basis for further investigation of the heterogeneity of airborne radioactivity concentrations in Europe.

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Meteorological factors influencing the 7Be and 210Pb concentrations in surface air from the southwestern Iberian Peninsula

Cited by 37 publications

References 27 publications

Analysis of the influence of solar activity and atmospheric factors on 7Be air concentration by seasonal-trend decomposition

Analysis of the influence of solar activity and atmospheric factors on 7Be air concentration by seasonal-trend decomposition

Long-term variations of radionuclides in the Bratislava air

Identification of airborne radioactive spatial patterns in Europe – Feasibility study using Beryllium-7

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