Assessing environmental risks through fuzzy parameterized probabilistic analysis

A fuzzy parameterized probabilistic analysis (FPPA) method was developed in this study to assess risks associated with environmental pollution-control problems. FPPA integrated environmental transport modeling, fuzzy transformation, probabilistic risk assessment, fuzzy risk quantification into a gen...

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Main Author: Qin, Xiaosheng
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2013
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Online Access:https://hdl.handle.net/10356/96662
http://hdl.handle.net/10220/11915
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-966622020-03-07T11:43:44Z Assessing environmental risks through fuzzy parameterized probabilistic analysis Qin, Xiaosheng School of Civil and Environmental Engineering DRNTU::Engineering::Environmental engineering A fuzzy parameterized probabilistic analysis (FPPA) method was developed in this study to assess risks associated with environmental pollution-control problems. FPPA integrated environmental transport modeling, fuzzy transformation, probabilistic risk assessment, fuzzy risk quantification into a general risk assessment framework, and was capable of handling uncertainties expressed as fuzzy-parameterized stochastic distributions. The proposed method was applied to two environmental pollution problems, with one being about the point-source pollution in a river system with uncertain water quality parameters and the other being concerned with groundwater contaminant plume from waste landfill site with poorly known contaminant physical properties. The study results indicated that the complex uncertain features had significant impacts on modeling and risk-assessment outputs; the degree of impacts of modeling parameters were highly dependent on the level of imprecision of these parameters. The results also implied that FPPA was capable of addressing vagueness or imprecision associated with probabilistic risk evaluation, and help generate risk outputs that could be elucidated under different possibilistic levels. The proposed method could be used by environmental managers to evaluate trade-offs involving risks and costs, as well as identify management solutions that sufficiently hedge against dual uncertainties. 2013-07-22T02:35:31Z 2019-12-06T19:33:39Z 2013-07-22T02:35:31Z 2019-12-06T19:33:39Z 2011 2011 Journal Article Qin, X. S. (2012). Assessing environmental risks through fuzzy parameterized probabilistic analysis. Stochastic Environmental Research and Risk Assessment, 26(1), 43-58. https://hdl.handle.net/10356/96662 http://hdl.handle.net/10220/11915 10.1007/s00477-010-0454-4 en Stochastic environmental research and risk assessment © 2011 Springer-Verlag.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Environmental engineering
spellingShingle DRNTU::Engineering::Environmental engineering
Qin, Xiaosheng
Assessing environmental risks through fuzzy parameterized probabilistic analysis
description A fuzzy parameterized probabilistic analysis (FPPA) method was developed in this study to assess risks associated with environmental pollution-control problems. FPPA integrated environmental transport modeling, fuzzy transformation, probabilistic risk assessment, fuzzy risk quantification into a general risk assessment framework, and was capable of handling uncertainties expressed as fuzzy-parameterized stochastic distributions. The proposed method was applied to two environmental pollution problems, with one being about the point-source pollution in a river system with uncertain water quality parameters and the other being concerned with groundwater contaminant plume from waste landfill site with poorly known contaminant physical properties. The study results indicated that the complex uncertain features had significant impacts on modeling and risk-assessment outputs; the degree of impacts of modeling parameters were highly dependent on the level of imprecision of these parameters. The results also implied that FPPA was capable of addressing vagueness or imprecision associated with probabilistic risk evaluation, and help generate risk outputs that could be elucidated under different possibilistic levels. The proposed method could be used by environmental managers to evaluate trade-offs involving risks and costs, as well as identify management solutions that sufficiently hedge against dual uncertainties.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Qin, Xiaosheng
format Article
author Qin, Xiaosheng
author_sort Qin, Xiaosheng
title Assessing environmental risks through fuzzy parameterized probabilistic analysis
title_short Assessing environmental risks through fuzzy parameterized probabilistic analysis
title_full Assessing environmental risks through fuzzy parameterized probabilistic analysis
title_fullStr Assessing environmental risks through fuzzy parameterized probabilistic analysis
title_full_unstemmed Assessing environmental risks through fuzzy parameterized probabilistic analysis
title_sort assessing environmental risks through fuzzy parameterized probabilistic analysis
publishDate 2013
url https://hdl.handle.net/10356/96662
http://hdl.handle.net/10220/11915
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