Lalwani, Asha (2016) Long-memory property in air pollutant concentrations. Atmospheric Research, 171. pp. 1-4. ISSN 0169-8095

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Abstract

In the present paper, long-memory in air pollutant concentrations is reviewed and outcome of the past studies is analyzed to provide the possible mechanism behind temporal evolution of air pollutant concentrations. It is observed that almost all the studies showair pollutant concentrations over time possess persistence up to a certain limit. Self-organized criticality of air pollution, multiplicative process of pollutant concentrations, and uniformity in emission sources leading to self-organized criticality are fewof the phenomena behind the persistent property of air pollutant concentrations. The self-organized criticality of air pollution is linked to atmosphere's selfcleansing mechanism. This demonstrates that inspite of increasing anthropogenic emissions, self-organized criticality of air pollution is sustained and has lowinfluence of human interventions. In the future, this property may, however, be perturbed due to continuous air pollution emissions, which may influence the accuracy in predictions.

Item Type:	Article
Uncontrolled Keywords:	Temporal Evolution; Self-organized Criticality; Self-cleansing of Atmosphere
Subjects:	Air Quality Air Pollution
Divisions:	UNSPECIFIED
Depositing User:	Dr. Asha Lalwani
Date Deposited:	05 May 2017 12:08
Last Modified:	05 May 2017 12:08
URI:	http://neeri.csircentral.net/id/eprint/902

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