The fields of mean concentration in potential sources of ammonium sulphate, ammonium nitrate and natural silicates for the west of Moscow region

摘要

According to measurements in 2002-2015 of concentrations of ammonium nitrate, ammonium sulfate and natural silicates in aerosol samples with particles in the range of 1-2 urn in diameter at the Zvenigorod scientific station (55.7° N, 36.8° E) of the A.M. Obukhov Institute of Atmospheric Physics of the Russian Academy of Sciences and simulation of backward trajectories of air parcels using the trajectory model NOAA HYSPLIT_4 by means of CWT (concentration weighted trajectory) method, the average fields of capacity (in unit of concentration) of potential sources of these admixtures and their sum for the west of Moscow region were obtained. The patterns of large-scale atmospheric circulation, which favoring the transfer of these admixtures from their regions of the most probable potential sources to the western Moscow region, are analyzed.