The evolution of positive air ions is mathematically simulated considering 150 trace gases and more than a thousand ion-molecule reactions. The main attention is paid to the evolution of near-ground air ions in the age interval from 10 ms to 3 s …
It is shown that the hydration correction for the free energy of cluster formation in the classical binary nucleation theory is not applicable for the thermodynamic data of the water-surface acid system commonly used in nucleation calculations. A new …
The mobility spectrum of air ions has been measured at Tahkuse Observatory in Estonia for several years. The average concentration of intermediate ions with mobilities of 0.05-0.5 cm(2) V-1 s(-1) in atmospheric air is about 50 cm(-3). On the level of …
The mobility spectra of air ions recorded in the course of routine atmospheric electric measurements contain information about atmospheric aerosols. The mobility spectrum of air ions is correlated with the size spectrum of aerosol particles. Two …
The paper deals with the modeling of the evolution(chemical kinetics) of tropospheric small ions for the case where the rate of ion generation is substantially above normal. Such types of situations can be found in the regions where because of either …
The chemical composition of small ions has been studied by means of formal chemical kinetics. The model for negative ions contains 474 ion-molecular reactions, 143 ions, and 106 neutral compounds, and the model for positive ions contains 1044 …
Mobility spectra of air ions have been measured at a rural site in Estonia during several periods. The annual average mobility spectrum of natural small air ions is presented. The concentrations of two groups of air ions with mobilities 0.32-0.5 …