Risk assessment of Kuala Lumpur municipal landfills - Delphi Approach

Most of the sol id waste disposal sites in Malaysia are either open dumps or controlled tipping. The risks from these sites are expected to be high especially the contamination of soil, air, surface and underground water, and also the i mp acts on flora and fauna. All these impacts have direct an...

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Main Author:	Theng, Lee Chong
Format:	Thesis
Language:	English English
Published:	2000
Subjects:	Fills (Earthwork) - Risk assessment - Kuala Lumpur - Malaysia Delphi method
Online Access:	http://psasir.upm.edu.my/id/eprint/9103/1/FSAS_2000_29_A.pdf
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id	my-upm-ir.9103
record_format	uketd_dc
spelling	my-upm-ir.91032013-09-26T06:52:09Z Risk assessment of Kuala Lumpur municipal landfills - Delphi Approach 2000-04 Theng, Lee Chong Most of the sol id waste disposal sites in Malaysia are either open dumps or controlled tipping. The risks from these sites are expected to be high especially the contamination of soil, air, surface and underground water, and also the i mp acts on flora and fauna. All these impacts have direct and indirect links to human being. The risks associated with solid waste disposal sites involved three compartments or media, i.e. the atmosphere, water and soil. This 'Cross media' or 'Multimedia' impacts phenomenon has made risk assessment of landfill site as a complicated process. This study discusses the development of a simple risk assessment systems for landfill sites by using the Delphi Approach, which emphasises the development of weight age for different parameters selected in the risk assessment procedures. The environmental conditions and risks of all closed and active disposal sites in Kuala Lumpur are assessed based on nine criteria representing the multi-media components of the environment, i.e. water quality, social , gas emissions, landuse, hydrology, geology, ecotoxicology, plant ecology and chemical constituents in soil and groundwater. These criteria have gathered 59 parameters and each parameter was assigned a weightage of importance which was then assessed with the actual situation of the landfill sites. The final scores can be aggregated according to individual criteria or across the multi-criteria for the overall environmental conditions. The results of assessments indicated that most of the solid waste disposal sites in the study area showed significant level of risks especially the still active site, i.e. Taman Beringin landfill site. This study also presents the evaluations of the pollution levels of all the disposal sites in terms of water and soil contamination by selected chemicals, and also air pollution by selected gases emitted from the sites. Landfill Pollution Index (LPI) was also developed in this study and were calculated for each disposal site i n the study area. The results show that Taman Beringin was the most polluted landfill with the LPI of 719.5576, followed by Jinjang Utara (383.5085), Paka 1 (197.6589), Brickfields (128.8949), Paka 2 (113.7235), Sri Petaling (30.8083) and Sungei Besi (17.8656). In summary, new evaluation systems had been introduced in this study in order to produce simple and reliable tools to evaluate or assess the pollution and risk levels for municipal waste landfill sites in Malaysia. B sed on the assessment of Kuala Lumpur landfill sites, it can be concluded that the risk and pollution levels of landfill sites in Kuala Lumpur area are relatively high, but it is site-specific and various from one landfill site to another. Fills (Earthwork) - Risk assessment - Kuala Lumpur - Malaysia Delphi method 2000-04 Thesis http://psasir.upm.edu.my/id/eprint/9103/ http://psasir.upm.edu.my/id/eprint/9103/1/FSAS_2000_29_A.pdf application/pdf en public masters Universiti Putra Malaysia Fills (Earthwork) - Risk assessment - Kuala Lumpur - Malaysia Delphi method Faculty of Science and Environmental Studies English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Fills (Earthwork) - Risk assessment - Kuala Lumpur - Malaysia Delphi method
spellingShingle	Fills (Earthwork) - Risk assessment - Kuala Lumpur - Malaysia Delphi method Theng, Lee Chong Risk assessment of Kuala Lumpur municipal landfills - Delphi Approach
description	Most of the sol id waste disposal sites in Malaysia are either open dumps or controlled tipping. The risks from these sites are expected to be high especially the contamination of soil, air, surface and underground water, and also the i mp acts on flora and fauna. All these impacts have direct and indirect links to human being. The risks associated with solid waste disposal sites involved three compartments or media, i.e. the atmosphere, water and soil. This 'Cross media' or 'Multimedia' impacts phenomenon has made risk assessment of landfill site as a complicated process. This study discusses the development of a simple risk assessment systems for landfill sites by using the Delphi Approach, which emphasises the development of weight age for different parameters selected in the risk assessment procedures. The environmental conditions and risks of all closed and active disposal sites in Kuala Lumpur are assessed based on nine criteria representing the multi-media components of the environment, i.e. water quality, social , gas emissions, landuse, hydrology, geology, ecotoxicology, plant ecology and chemical constituents in soil and groundwater. These criteria have gathered 59 parameters and each parameter was assigned a weightage of importance which was then assessed with the actual situation of the landfill sites. The final scores can be aggregated according to individual criteria or across the multi-criteria for the overall environmental conditions. The results of assessments indicated that most of the solid waste disposal sites in the study area showed significant level of risks especially the still active site, i.e. Taman Beringin landfill site. This study also presents the evaluations of the pollution levels of all the disposal sites in terms of water and soil contamination by selected chemicals, and also air pollution by selected gases emitted from the sites. Landfill Pollution Index (LPI) was also developed in this study and were calculated for each disposal site i n the study area. The results show that Taman Beringin was the most polluted landfill with the LPI of 719.5576, followed by Jinjang Utara (383.5085), Paka 1 (197.6589), Brickfields (128.8949), Paka 2 (113.7235), Sri Petaling (30.8083) and Sungei Besi (17.8656). In summary, new evaluation systems had been introduced in this study in order to produce simple and reliable tools to evaluate or assess the pollution and risk levels for municipal waste landfill sites in Malaysia. B sed on the assessment of Kuala Lumpur landfill sites, it can be concluded that the risk and pollution levels of landfill sites in Kuala Lumpur area are relatively high, but it is site-specific and various from one landfill site to another.
format	Thesis
qualification_level	Master's degree
author	Theng, Lee Chong
author_facet	Theng, Lee Chong
author_sort	Theng, Lee Chong
title	Risk assessment of Kuala Lumpur municipal landfills - Delphi Approach
title_short	Risk assessment of Kuala Lumpur municipal landfills - Delphi Approach
title_full	Risk assessment of Kuala Lumpur municipal landfills - Delphi Approach
title_fullStr	Risk assessment of Kuala Lumpur municipal landfills - Delphi Approach
title_full_unstemmed	Risk assessment of Kuala Lumpur municipal landfills - Delphi Approach
title_sort	risk assessment of kuala lumpur municipal landfills - delphi approach
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Science and Environmental Studies
publishDate	2000
url	http://psasir.upm.edu.my/id/eprint/9103/1/FSAS_2000_29_A.pdf
_version_	1747810902585901056

Risk assessment of Kuala Lumpur municipal landfills - Delphi Approach

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