Ozone is found in two regions of the Earths atmosphere - at ground level and in the upper regions of the atmosphere. Both types of ozone have the same chemical composition (O3). While upper atmospheric ozone protects the earth from the suns harmful rays, ground level ozone is the main component of photochemical smog. Troposheric, or ground level ozone, is not emitted directly into the air, but is created by chemical reactions between oxides of nitrogen (NOx) and volatile organic compounds (VOC). Ozone is likely to reach unhealthy levels on hot sunny days in urban environments. Ozone can...

Atmospheric aerosols are suspension of small tiny particles in solid or liquid phase dispersed in the atmosphere. The significance of atmospheric aerosols stems from the fact that, besides the environmental health effects, these can perturb the climate directly, by altering the radiation balance of the Earth-Atmosphere system, indirectly by altering the cloud properties and semi-directly by evaporating the clouds. Satellite remote sensing is an essential tool for monitoring the global aerosol budget and their radiative effects on climate. The Moderate Resolution Imaging Spectroradiometer...

Global climate change is one of the most serious environmental problems faced by the worked community. It is observed that, large global changes are due to increase in the abundance of aerosols/greenhouse gases have generally occurred as the result of natural forces and one beyond human influence or control (IPCC, 1995). However, in most of the cases, the impact assessment contains large uncertainty and become difficult to determine the validity of the hypothesis made related to anthropogenic contributions. Atmospheric aerosols /ozone and precursors will play an important role in global...