Regional atmosphere organic compounds

Total volatile organic compounds (TVOCs) in Indoor and Outdoor Urban Atmospheres at a Terai Region Of Northern India... 

The presence of ionizing radiation in the upper regions of the earth s atmosphere and the realization that atmospheric chemistry can occur on the surface of ice and dust particles have lead many authors to study on the interaction of LEE with molecular solids of ozone [203], HCl [236], and halogen-containing organic compounds [176,177,195-197,199-202,205,214,217,224-234] in an effort to shed new light on the problem of ozone depletion. In a recent series of experiments, Lu and Madey [297,298] found that the and CG yields... 

For the majority of gas-phase organic chemicals present in the troposphere, reaction with the OH radical is the dominant loss process (Atkinson, 1995). The tropospheric lifetime of a chemical is the most important factor in determining the relative importance of transport, to both remote regions of the globe and to the stratosphere, and in determining the possible buildup in its atmospheric concentration. Knowledge of the OH radical reaction rate constant for a gas-phase organic compound leads to an upper limit to its tropospheric lifetime. 

There are several mechanisms whereby organic compounds released into the atmosphere may be removed (i) physical removal by precipitation ( rain-out ) (ii) chemical reaction in the troposphere (in) transport into the stratosphere (iv) chemical reaction in the stratosphere. The physical and dynamic conditions of the different atmospheric regions will usually dictate the type of mechanism that occurs2,3. 

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