Volume No. 1 Issue No.: 1 Page No.: 22-25 July-September 2006




Sunakar Panda

Laboratory of Environmental Chemistry Department of Chemistry, Aska Science College, Aska, Ganjam, Orissa (INDIA)


Received on : April 29, 2006




The global air pollution is mainly due to five primary air pollutants namely carbonmonoxide (CO), oxides of nitrogen (NOX), hydrocarbon (HC), oxides of sulfur (SOX) and particulates (Part.). Out of all the primary pollutants, particulates are the most dangerous ones because of their high toxicity and comparatively longer lifetime in the environment. These may be associated with either some inorganic molecules or some organic molecules. These have differential mechanism of interaction with environment depending upon their chemical nature. On their interaction, these cause extensive damage to both living and nonliving systems of the environment. The extent and type of damage depends upon chemical composition and physical state of particulates. It is seen that the particulate induced damage is maximum when these are corrosive or these carry toxic substances along with them. In this paper, an attempt is made to discuss different sources of particulate emission, their chemical nature, their mechanism of interaction, their detrimental effects and some remedial measures to control the level of particulate in the environment.


Keywords : Particulate, Environment, Degradation, Pollutant, Air pollution, Toxicity