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Quantification of Periodicities in Fugitive Emission of Gases from Lyari Waterway
Abstract:Periodicities in the environmetric time series can be idyllically assessed by utilizing periodic models. In this communication fugitive emission of gases from open sewer channel Lyari which follows periodic behaviour are approximated by employing periodic autoregressive model of order p. The orders of periodic model for each season are selected through the examination of periodic partial autocorrelation or information criteria. The parameters for the selected order of season are estimated individually for each emitted air toxin. Subsequently, adequacies of fitted models are established by examining the properties of the residual for each season. These models are beneficial for schemer and administrative bodies for the improvement of implemented policies to surmount future environmental problems.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1083249Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 996
 H. Akaiake, "A new look at the statistical model identification," IEEE Trans. Automatic Control, AC-19, pp. 716-723, 1974.
 H. Akaiake, "On entropy maximization principal," in Proc. of the symposium on Applications of Statistics, Amsterdam: North-Holland, 1977.
 G. Schwarz, "Estimating the dimension of a model," Ann. Statistics, 6, pp. 461-464, 1978.
 H. Sakai, "Circular lattice filtering using Pagano-s method," IEEE Trans. Acoust. Speech Signal Process,30, pp. 279-287, 1982.
 M. Pagano, "On periodic and multiple autoregressions," Ann. Statistics, 6, pp. 1310-1317, 1978.
 W.K. Li, and A.I. McLeod, "Distribution of the residual autocorrelation in multivariate ARMA time series models," Journals of the Royal Statistical Society, Series B, 43(2), pp. 231-239, 1981.
 E. Haq, "Land form drainage system basin in Karachi region," Karachi Development Autority, Karachi, MP & ED Rep. No.9, 1971.
 ACE, "Industrial waste pollution," Associated Consulting Engineers, Karachi, Final Report, 1983, vol.1.
 Balfours, "Feasibility study for preparation of sewage and sewage disposal projects in Karachi," Balfours Consulting Associates, Final Report, 1988,vol.2.
 KDA and MP & ECD, "Karachi Costal Recreation Development Plan 1990-2000," Karachi Development Authority and Master Plan & Environmental Control Department, Karachi, pp. 49-80, 1990.
 KPT, "Environmental impact studies," Karachi Port Trust, Final Report,1996, vol.1.
 A. Mansoor & S. Mirza, "Waste Disposal And Stream Flow Quantity and Quality of Lyari River," Indus Journal of Mangement and Social Sciences, 1(1), pp. 76-79, 2007.
 R.K. Naeem, and A. Mansoor, "Stochastic modeling approach for water quality assessment," in Proc. of International Conf. On Built Environment in Developing Countries, Malaysia: Pennag, 2007, pp-113- 119.