Dynamics of Fluoride Atmospheric Falloutsin the Baikal Region

N. I. Yanchenko, S. L. Slutskii, A. N. Baranov, and V. V. Verkhoturov

The variations of the density of atmospheric fallouts of fluorides depending on the source location, sampling period, and research area were subjected to the comparative analysis using the data of snow chemical survey in Bratsk and the results of observations over fluoride atmospheric fallouts in Listvyanka settlement. It is demonstrated that it is reasonable to analyze the actual values of the density of fluoride atmospheric fallouts based on the data of snow chemical survey or plane observations, for assessing the yearly dynamics of the intensity of anthropogenic sources of fluorine. The analysis should account urban (regional) background values, air temperature, and amount of precipitation for the same period of time (the period of stable snow cover or plane observations).

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