COMBUSTION PRODUCTS FROM FIRES AS A CAUSE OF FORMATION OF OZONE HOLE IN THE ATMOSPHERE

A thermodynamic analysis of the reactions of ozone depletion in the atmosphere in the temperature range 100–700 K was performed. The equilibrium constants of a large number of possible reactions was calculated. The Chapman's mechanism of ozone depletion was analyzed. A low probability of nitrogen and hydrogen cycles of O3 depletion was established. It is suggested on radical-chain mechanism of destruction of O3 molecules by combustion products with the simultaneous formation of atomic oxygen O, and sooty particles. On the base of experimental data of aerosol formation of sooty particles of different diameters and other products of combustion during fires in the Moscow region in the summer of 2010 were made the calculations of formation of the ozone hole in the atmosphere. It is suggested that a possible reason of the formation and growth of the ozone hole in the Southern Hemisphere could be enormous fires, including in February, 1983 that covered large areas of the southern states of Australia. It was suggested that the ozone hole in the Northern Hemisphere could be caused by fires (including multiple processes of hydrocarbons combustion) in the eastern regions of Russia, as well as in Europe and the Northern America.