A study of atmospheric radon transport as a tracer of pollutants over the Japan Sea

Continuous Observation of Atmospheric222Rn Concentrations for Analytic Basis of Atmospheric Transport in East Asia

“…Thus, atmospheric 222 Rn has been used for analysis of regional atmospheric transport between continents and oceans. [3][4][5][6][7] Simpler behavior of 222 Rn in the atmosphere is also suitable for validation of numerical models relating to atmospheric transport phenomena. [8][9][10][11] We have established an observation network of continuous measurement of atmospheric 222 Rn concentration in East Asia, where is considered one of the important areas in terms of emission and atmospheric transport of aerosols, yellow dust storms and sorts of air pollutants from rapidly developing megacities, relating to regional health problems, environmental damages and global radiation forcing, i.e., the global warming.…”

Tracers for evaluating computational models of atmospheric transport and oxidation at regional to global scales

“…In the absence of DRTs, some natural sources have been exploited for studying atmospheric dispersion. Radon that is naturally emitted from the land surface has been widely used as a tracer, particularly for assessing vertical transport (Feichter and Crutzen, 1990;Jacob and Prather, 1990;Aoshima et al, 2005;Karstens et al, 2015, Grossi et al, 2016Williams et al, 2016). However, there remain substantial uncertainties regarding the magnitude and variability of radon flux (which is influenced by factors such soil moisture, Karstens, et al 2015), which will limit the accuracy of model calibration efforts based on radon measurements.…”