Comparison of radioactivity data measured in PM 10  aerosol samples at two elevated stations in northern Italy during the Fukushima event

Tositti, Laura; Brattich, Erika; Cinelli, Giorgia; Previti, Alberto; Mostacci, Domiziano

doi:10.1016/j.jenvrad.2012.01.016

Cited by 22 publications

(3 citation statements)

References 25 publications

(27 reference statements)

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“…All the details about the experimental techniques used for PM 10 , 7 Be and 210 Pb sampling and measurements at Mt. Cimone can be found in previously published papers (Tositti et al, 2012(Tositti et al, , 2013(Tositti et al, , 2014.…”

Section: Methodsmentioning

confidence: 99%

An outstanding Saharan dust event at Mt. Cimone (2165 m a.s.l., Italy) in March 2004

Brattich

Riccio

Tositti

et al. 2015

Atmospheric Environment

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Section: Methodsmentioning

confidence: 99%

An outstanding Saharan dust event at Mt. Cimone (2165 m a.s.l., Italy) in March 2004

Brattich

Riccio

Tositti

et al. 2015

Atmospheric Environment

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“…Following the anticyclonic flow, the first observations and highest peak concentrations were reported in Northern and Eastern Europe with arrival times 21–24 March through Belgium, Germany, Denmark, Belarus, Poland and the Carpathian Basin 17 26 27 28 29 30 31 . By 23–26 March, the plume had been detected in entire Europe except in Southern Italy where a subtropical high pressure system blocked the dispersion until 27–30 March 24 27 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 . During this time, another transport pathway was also playing role from the Pacific through the high Arctic that reached Svalbard on 25 March and merged with zonally transported plumes over Northern Europe 23 24 .…”

Section: Resultsmentioning

confidence: 99%

Predictability of the dispersion of Fukushima-derived radionuclides and their homogenization in the atmosphere

Mészáros

Leelőssy

Kovács

et al. 2016

Sci Rep

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Long-range simulation of the dispersion of air pollutants in the atmosphere is one of the most challenging tasks in geosciences. Application of precise and fast numerical models in risk management and decision support can save human lives and can diminish consequences of an accidental release. Disaster at Fukushima Daiichi nuclear power plant has been the most serious event in the nuclear technology and industry in the recent years. We present and discuss the results of the numerical simulations on dispersion of Fukushima-derived particulate 131I and 137Cs using a global scale Lagrangian particle model. We compare concentrations and arrival times, using two emission scenarios, with the measured data obtained from 182 monitoring stations located all over the Northern Hemisphere. We also investigate the homogenization of isotopes in the atmosphere. Peak concentrations were predicted with typical accuracy of one order of magnitude showing a general underestimation in the case of 131I but not for 137Cs. Tropical and Arctic plumes, as well as the early detections in American and European midlatitudes were generally well predicted, however, the later regional-scale mixing could not be captured by the model. Our investigation highlights the importance of the parameterization of free atmospheric turbulence.

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“…After weighing, 7 Be and 210 Pb activities were determined on the sampled glass fiber filters by nondestructive high-resolution γspectrometry with two Hyper Pure Germanium crystal detectors. For details about the measurements of PM 10 and atmospheric radionuclides at the station the reader is referred to Tositti et al [2012Tositti et al [ , 2013Tositti et al [ , 2014, while accuracy and precision of 7 Be measurements were evaluated within an intercomparison exercise involving several European research groups [Tositti et al, 2004].…”

Section: Methodsmentioning

confidence: 99%

Influence of stratospheric air masses on radiotracers and ozone over the central Mediterranean

et al. 2017

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This work aims at determining the characteristics and the preferred source regions of stratospheric air masses at the Mt. Cimone World Meteorological Organization‐Global Atmosphere Watch station located in the Italian northern Apennines (44°11′N, 10°42′E, 2165 m above sea level) , a site which is considered representative of Southern Europe‐Mediterranean free troposphere. Source regions of high concentrations of 7Be, 7Be/210Pb, and O3 and regions originating high potential vorticity values are analyzed by means of trajectory statistical methods applied over the time series collected in the period of 1998–2011 to this aim. Our analysis points out the frequent occurrence of stratosphere‐to‐troposphere exchange in the North America and northern Atlantic region, which can be linked to the usual location of the polar‐front and subtropical jet streams in these two regions, but also to the tropopause discontinuity and to the high cyclogenetic activity in the Atlantic region. High 7Be concentrations associated with trajectories of high‐latitude origin descend from high altitudes to the study site, while at midlatitudes trajectories arrive from relatively lower levels. The geographical distribution of the tropopause crossing of air masses before arriving the study site points out particularly to Greenland. Our results also suggest the importance of the interaction between upper level disturbances and the Alps mountain range as a driver for stratosphere‐to‐troposphere exchange. In this case, the time between the tropopause crossing and the arrival at the elevated study site is less than 24 h and frequently below 6 h. The Atlas range in northern Africa plays a similar role though with lower influence.

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Comparison of radioactivity data measured in PM 10 aerosol samples at two elevated stations in northern Italy during the Fukushima event

Cited by 22 publications

References 25 publications

An outstanding Saharan dust event at Mt. Cimone (2165 m a.s.l., Italy) in March 2004

An outstanding Saharan dust event at Mt. Cimone (2165 m a.s.l., Italy) in March 2004

Predictability of the dispersion of Fukushima-derived radionuclides and their homogenization in the atmosphere

Influence of stratospheric air masses on radiotracers and ozone over the central Mediterranean

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