TheEffectofMeteorological Variables Upon Radon ConcentrationThree Feet Above the Ground

Diurnal and Seasonal Air Ion Variability at Rural Station Ramanandnagar (17°2'N, 74°E), India

“…During the remaining months, the ground is more susceptible to radioactive emanation (Damon and Kuroda, 1954). Therefore, during these months both positive and negative ion curves show lower concentration (Moses et al, 1963;Mattsson, 1970) and fluctuating as compared to nonflooded months. The area around the station is planted with sugarcane, corn, and other crops as noted, therefore plant transpiration enters the picture during these months (Guedalia et al, 1970).…”

Radon and thoron progeny concentration variability in relation to meteorological conditions at Bucharest (Romania)

“…The distribution of the radon and thoron progeny in the atmosphere is additionally influenced by removal processes as dry deposition, rainout and washout (Jacobi and Andre´, 1963;Porstendo¨rfer, 1994;Raviart et al, 1996). The advection process may have important effects on radon, thoron and their progeny concentrations at sites adjacent to large bodies of water or to areas with higher radon/thoron concentrations (Moses et al, 1963;Beck and Gogolak, 1979;Duen˜as et al, 1996a).…”

One year of <sup>222</sup>Rn concentration in the atmospheric surface layer

“…The variability of radon concentration in the atmosphere is strictly connected to the meteorological conditions as the emission from the surface is in principle constant in time and space for a given soil type (Moses et al, 1963). In this section we will analyze the dependence of radon concentration on the meteorological situation at the measuring station during the year of measurements.…”

“…Some authors (e.g. Hatuda, 1953;Moses et al, 1963;Kranner et al, 1964;Schery et al, 1984) consider also atmospheric pressure variations as possibly responsible for variation of surface emissions. Namely increase (decrease) of pressure would damp (increase) the exhalation flux from the soil.…”