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Ara es mostren els items 7-26 de 29

    • Characterizing the automatic radon flux transfer standard system autoflux: laboratory calibration and field experiments 

      Grossi, Claudia; Rábago, Daniel; Sainz, Carlos; Curcoll Masanes, Roger; Otáhal, Petr; Fialova, Eliska; Quindós, Luis; Vargas Drechsler, Arturo (European Geosciences Union (EGU), 2023-05-31)
      Article
      Accés obert
      High-quality, long-term measurements of terrestrial trace gas emissions are important for investigations of atmospheric, geophysical and biological processes to help mitigate climate change and protect the environment and ...

    • Effectiveness analysis of filters used with radon detectors under extreme environmental conditions for long-term exposures 

      Moreno Balta, Victoria; Font Guiteras, Lluís; Baixeras, Carmen; Garcia Orellana, Jordi; Grossi, Claudia; Vargas Drechsler, Arturo (Elsevier, 2015-02-04)
      Article
      Accés obert
      Active and passive radon detectors have been exposed with different filter configurations at the INTE radon chamber controlled conditions. Correction factors and delay times of the radon diffusion through each filter have ...

    • Exploring the influence of land use on the urban carbonyl sulfide budget: a case study of the metropolitan area of Barcelona 

      Estruch, Carme; Belviso, Sauveur; Badia Moragas, Alba; Vidal Canedo, Veronica; Curcoll Masanes, Roger; Udina Sistach, Mireia; Grossi, Claudia; Morguí, Josep-Anton; Segura, Ricard; Ventura Caballé, Sergi; Sola Salvatierra, Yolanda; Villalba Mendez, Gara (John Wiley & sons, 2023-12-19)
      Article
      Accés obert
      Carbonyl sulfide (OCS) is used to quantify the carbon capture potential of the biosphere because of its direct correlation with CO2 uptake during photosynthesis. However, to constrain the urban biosphere signal, it is ...

    • First estimation of CH4fluxes using the222Rn Tracer Method over the central Iberian Peninsula 

      Grossi, Claudia; Vogel, Felix; Morguí, Josep Anton; Curcoll Masanes, Roger; Agueda Costafreda, Alba; Batet Torrell, Óscar; Nofuentes, Manel; Occhipinti, Paola; Vargas Drechsler, Arturo; Rodó, Xavier (WIT Press, 2014)
      Text en actes de congrés
      Accés obert
      Emissions of CH4 over the central Iberian Peninsula have been estimated experimentally for the first time using the Radon Tracer Method (RTM), which uses the atmospheric noble radioactive gas 222Rn as an auxiliary tracer. ...

    • Ground-based mobile measurements to track urban methane emissions from natural gas in 12 cities across eight countries 

      Vogel, Felix; Ars, Sebastien; Wunch, Debra; Lavoie, Jean-Michel; Gillespie, Louis; Maazallahi, Hossein; Röckmann, Thomas; Necki, Jaroslaw; Bartyzel, Jakub; Jagoda, Pawel; Lowry, David; Curcoll Masanes, Roger; Grossi, Claudia (2024-01-25)
      Article
      Accés obert
      To mitigate methane emission from urban natural gas distribution systems, it is crucial to understand local leak rates and occurrence rates. To explore urban methane emissions in cities outside the U.S., where significant ...

    • High efficiency and portable monitor of atmospheric radon concentration activity for environmental applications 

      Curcoll Masanes, Roger; Grossi, Claudia; Vargas, Arturo (European Geosciences Union (EGU), 2021)
      Comunicació de congrés
      Accés obert

    • Influence of long-range atmospheric transport pathways and climate teleconnection patterns on the variability of surface Pb-210 and Be-7 concentrations in southwestern Europe 

      Grossi, Claudia; Ballester, Joan; Serrano Carreño, M. Isabel; Galmarini, Stefano; Camacho García, Antonia; Curcoll, Roger; Morguí, Josep Anton; Rodó, Xavier; Duch Guillen, María Amor (Elsevier, 2016-12-01)
      Article
      Accés obert
      The variability of the atmospheric concentration of the 7Be and 210Pb radionuclides is strongly linked to the origin of air masses, the strength of their sources and the processes of wet and dry deposition. It has been ...

    • Influence of the Fukushima Dai-ichi nuclear accident on Spanish environmental radioactivity levels 

      Baeza, A.; Corbacho, J.A.; Rodríguez, Alicia; Galván, J.; García Tenorio, R.; Manjón, G.; Mantero, Juan; Vioque, I.; Arnold Arias, Dèlia; Grossi, Claudia; Serrano Carreño, M. Isabel; Valles Murciano, M. Isabel; Vargas Drechsler, Arturo (Elsevier, 2012-12)
      Article
      Accés restringit per política de l'editorial
      This paper presents measurements of the effect of the atmospheric radioactive release from the Fukushima Dai-ichi nuclear power station at three sites belonging to the Spanish environmental monitoring system. Measured ...

    • Inter-comparison of commercial continuous radon monitors responses 

      Radulescu, Ileana; Calin, M. R.; Luca, A.; Röttger, Annette; Grossi, Claudia; Done, Laurentiu; Ioan, M. R. (2022-01)
      Article
      Accés obert
      Indoor and outdoor (atmospheric) radon activity concentrations need to be measured as accurate as possible for radiation protection and for climate applications. Particularly radon concentrations below 100 Bq m -3, useful ...

    • Inter-comparison of different direct and indirect methods to determine radon flux from soil 

      Grossi, Claudia; Vargas Drechsler, Arturo; Camacho García, Antonia; Lopez Coto, I.; Bolivar, J.P; Xia, Yu; Conen, F. (2011-01)
      Article
      Accés restringit per política de l'editorial
      The physical and chemical characteristics of radon gas make it a good tracer for use in the application of atmospheric transport models. For this purpose the radon source needs to be known on a global scale and this is ...

    • Intercomparison of Radon Flux Monitors at Low and at High Radium Content Areas under Field Conditions 

      Rábago, Daniel; Quindós, Luis; Vargas Drechsler, Arturo; Sainz, Carlos; Radulescu, Ileana; Razvan Ioan, Mihail; Cardellini, Francesco; Capogni, Marco; Rizzo, Alessandro; Celaya, Santiago; Fuente, Ismael; Fuente, Marta; Grossi, Claudia; Rodríguez, Maria (2022-04-01)
      Article
      Accés obert
      Interlaboratory exercises are a good tool to compare the response of different systems to the same quantity and to identify possible inconsistencies between them. One of the main goals of the EMPIR 19ENV01 traceRadon project ...

    • Intercomparison study of atmospheric 222Rn and 222Rn progeny monitors 

      Grossi, Claudia; Chambers, Scott Dudley; Vogel, Felix; Vargas Drechsler, Arturo (2020-05-08)
      Article
      Accés obert
      The use of the noble gas radon (222Rn) as a tracer for different research studies, for example observation-based estimation of greenhouse gas (GHG) fluxes, has led to the need of high-quality 222Rn activity concentration ...

    • Low-level radon activity concentration—A metroRADON international intercomparison 

      Otáhal, Petr; Fialova, Eliska; Vosahlik, Josef; Wiedner, Hannah; Grossi, Claudia; Vargas Drechsler, Arturo; Michielsen, Nathalie; Turtiainen, Tuukka; Luca, Aurelian; Woloszczuk, Katarzyna; Beck, Thomas R. (2022-05-10)
      Article
      Accés obert
      An international comparison of continuous monitors measuring radon activity concentration was performed to validate the traceability of the European radon calibration facilities. It was carried out by comparing the secondary ...

    • Metrology for low-cost CO2 sensors applications: the case of a steady-state through-flow (SS-TF) chamber for CO2 fluxes observations 

      Curcoll Masanes, Roger; Morguí, Josep-Anton; Kamnang, Armand; Cañas, Lidia; Vargas Drechsler, Arturo; Grossi, Claudia (2022-05-09)
      Article
      Accés obert
      Soil CO2 emissions are one of the largest contributions to the global carbon cycle, and a full understanding of processes generating them and how climate change may modify them is needed and still uncertain. Thus, a dense ...

    • New metrology for radon at the environmental level 

      Röttger, Annette; Röttger, Stefan; Grossi, Claudia; Vargas Drechsler, Arturo; Curcoll Masanes, Roger; Otáhal, Petr; Hernández Ceballos, Miguel Ángel; Cinelli, Giorgia; Chambers, Scott Dudley; Barbosa, Susana Alexandra; Ioan, M. R.; Radulescu, Ileana (2021-09-23)
      Article
      Accés obert
      Radon gas is the largest source of public exposure to naturally occurring radioactivity. However, radon is also a useful tracer for understanding atmospheric processes, assessing the accuracy of chemical transport models, ...

    • Quality study of electret radon flux monitors by an “in situ” intercomparison campaign in Spain 

      Grossi, Claudia; Vargas Drechsler, Arturo; Arnold, Delia (International Energy Agency, 2011)
      Text en actes de congrés
      Accés obert
      Radon is nowadays used as a tracer for atmospheric transport model validation because of its physical and chemical characteristics. 222Rn source term characterization becomes necessary for more accurate validations into ...

    • Radon 

      Grossi, Claudia (2019-05-01)
      Capítol de llibre
      Accés obert
      Radon isotopes (222Rn, 220Rn) are noble, naturally occurring radioactive gases. They originate from the alpha decay of radium isotopes (226Ra, 224Ra), which occur in most materials in the environment, i.e. soil, rocks, raw ...

    • Radon metrology for use in climate change observation and radiation protection at the environmental level 

      Röttger, Stefan; Röttger, Annette; Grossi, Claudia; Vargas Drechsler, Arturo; Karstens, Ute; Cinelli, Giorgia; Chung, Edward; Kikaj, Dafina; Rennick, Chris; Mertes, Florian; Radulescu, Ileana (European Geosciences Union (EGU), 2022-03-10)
      Article
      Accés obert
      Radon (222Rn) gas is the largest source of public exposure to naturally occurring radioactivity and the identification of radon priority areas is required by the Council Directive 2013/59/Euratom. Radon is also used as a ...

    • Study of the daily and seasonal atmospheric CH4 mixing ratio variability in a rural Spanish region using Rn-222 tracer 

      Grossi, Claudia; Vogel, F. R.; Curcoll, Roger; Agueda Costafreda, Alba; Vargas Drechsler, Arturo; Rodó, Xavier; Morguí, Josep Anton (2018-04-26)
      Article
      Accés obert
      The ClimaDat station at Gredos (GIC3) has been continuously measuring atmospheric (dry air) mixing ratios of carbon dioxide (CO2) and methane (CH4), as well as meteorological parameters, since November 2012. In this study ...

    • Temporal and spatial variability of ground level atmospheric methane concentrations in the Ebro River Delta 

      Agueda Costafreda, Alba; Grossi, Claudia; Pastor Ferrer, Elsa; Rioja, Eva (2017-07)
      Article
      Accés restringit per política de l'editorial
      Deltas provide many worthy ecosystem services. Yet, delta basins are quite vulnerable, especially in the face of climate change, which can affect the outcome of both agriculture and biodiversity. Moreover, rice paddy ...