Inverse modeling of Asian 222Rn flux using surface air 222Rn concentration

Analysis of ground‐based 222Rn measurements over Spain: Filling the gap in southwestern Europe

“…Due to its physical characteristics, presented in classical literature such as Fleischer et al . [], Tanner [], Nazaroff and Nero [], Nazaroff [], and Porstendorfer [], the radioactive noble gas 222 Rn is widely used by the scientific community to study a number of different research topics, such as (i) to improve inverse transport models, which are used to calculate emissions of greenhouse gases (GHGs) [ Biraud et al ., ; Hirao et al ., ; Locatelli et al ., ]; (ii) to study atmospheric transport and mixing processes within the planetary boundary layer [ Zahorowski et al ., ; Galmarini , ; Vinuesa et al ., ; Baskaran , ; Chambers et al ., , ; Williams et al ., , ; Grossi et al ., ; Vogel et al ., ; Hernández‐Ceballos et al ., ; Vargas et al ., ]; (iii) to improve radon flux inventories [ Szegvary et al ., ; Griffiths et al ., ; López‐Coto et al ., ; Karstens et al ., ]; (iv) to experimentally estimate GHGs fluxes by using the Radon Tracer Method [ Levin et al ., ; Vogel et al ., ; Wada et al ., ; Grossi et al ., ]; (v) to understand the influence of climate change on the atmospheric radon increase and its associated health risks [ Nazaroff , ; Bochicchio et al ., ; Bossew et al ., ]; and (vi) to refine baseline selection and characterization techniques and analyze air mass history and fetch at remote sites [ Zahorowski et al ., ; Chambers et al ., , , ].…”

Intercomparison study of atmospheric <sup>222</sup>Rn and <sup>222</sup>Rn progeny monitors

“…In light of this, atmospheric 222 Rn measurements are being carried out at numerous monitoring stations of GHG concentrations and air quality using three fundamentally different measurement principles: one filter, two filters, and electrostatic deposition (Stockburger and Sittkus, 1966;Hopke, 1989;Whittlestone and Zahorowski, 1998;Paatero et al, 1998;Levin et al, 2002). The two most commonly employed measurement systems at European 222 Rn monitoring stations are the dual-flow-loop two-filter monitor (Whittlestone and Zahorowski, 1998;Zahorowski et al, 2004;Chambers et al, 2011Chambers et al, , 2014Chambers et al, , 2018Griffiths et al, 2016), which samples and measures radon directly, and the onefilter monitors, of which several kinds are in use (e.g., Stockburger and Sittkus, 1966;Polian, 1986;Paatero et al, 1998;Levin et al, 2002), which sample and measure aerosolbound radon progeny.…”

“…Finally, a third method is being used at several Spanish atmospheric stations (Vargas et al, 2015;Hernández-Ceballos et al, 2015;Grossi et al, 2016Grossi et al, , 2018Frank et al, 2016;Gutiérrez-Álvarez et al, 2019). This type of instrument performs a direct measurement of 222 Rn and 220 Rn (thoron) activity concentrations using the already existent method based on the electrostatic deposition of 218 Po and 216 Po, respectively (Hopke, 1989;Tositti et al, 2002;Grossi et al, 2012).…”

Inter-comparison study of atmospheric <sup>222</sup>Rn and <sup>222</sup>Rn progeny monitors

“…In recent decades the atmospheric scientific community has been addressing different research topics using 222 Rn as a tracer. Examples of such applications include: the improvement of inverse transport models (Hirao et al, 2010), the improvement of chemical transport models (Jacob and Prather, 1990;Chambers et al 2019a), the study of atmospheric transport and mixing processes within the planetary boundary layer (Zahorowski et al, 2004;Galmarini, 2006;Baskaran, 2011;Chambers et al, 2011Chambers et al, , 2019bWilliams et al, 2011Williams et al, , 2013Vogel et al 2013;Vargas et al, 2015;Baskaran, 2016), the experimental estimation of greenhouse gas (GHG) fluxes (Levin et al, 1999;2011;Vogel et al, 2012;Wada et al, 2013;Grossi et al, 2018), and others listed in Grossi et al (2016).…”