Organic Compounds in Atmospheric Aerosols

Abstract

Organic compounds in the atmospheric aerosols and suspended particulate matter (PM) are a vital component of the atmosphere. Most of these compounds are volatile which affects their transport and distribution in the atmosphere. The presence of these compounds has become an issue of serious concern in recent times due to their toxic impact on human health and the environment at large, and their indispensable role as a driving force for various environmental issues. Polyaromatic hydrocarbons, polychlorinated compounds and some other components have been proven to be mutagenic and carcinogenic. Organic aerosols have also been reported to significantly affect climate and visibility. This chapter critically reviews organic compounds in the atmospheric aerosol. It discusses the occurrence and sources of these compounds, classes of organic compounds in aerosols, their impact on the environment and human health, recent reports on their distribution and concentrations in atmospheric aerosols. An attempt is also made at highlighting the future trends in this regard.