Submitted on: 24 May 2014.
Revised on: 12 August 2014.
Accepted on: 01 October 2014.
___________________INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION
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Submitted on: 02 June 2015.
Revised on: 14 July 2015.
Accepted on: 24 August 2015.
___________________INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION
Submitted on: 12 December 2006.
Revised on: 18 January 2007.
Accepted on: 05 February 2007.
___________________INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION
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