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Modelling of PM10 concentration in industrialized area in Malaysia: A case study in Nilai & Shah Alam

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Bibliographic Details
Main Author: Tan, Cheng Yau
Other Authors: Norazian Mohamed Noor
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2013
Subjects:
Air pollution
Particulate matter (PM10)
Industrial area
Air quality management
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/23617
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spelling my.unimap-236172013-02-16T08:54:10Z Modelling of PM10 concentration in industrialized area in Malaysia: A case study in Nilai & Shah Alam Tan, Cheng Yau Norazian Mohamed Noor Air pollution Particulate matter (PM10) Industrial area Air quality management Access is limited to UniMAP community. In Malaysia, the predominant air pollutants are suspended particulate matter (SPM) and nitrogen dioxide (NO2). This research is on PM10 as they may trigger harm to human health as well as environment. Six distributions, namely Weibull, log-normal, gamma, Rayleigh, Gumbel and Frechet were chosen to model the PM10 observations at two industrial areas: Nilai and Shah Alam. One-year period hourly average data for 2007 was used for this research. For parameters estimation, method of maximum likelihood estimation (MLE) was selected. Four performance indicators that are mean absolute error (MAE), root mean squared error (RMSE), coefficient of determination (R2) and prediction accuracy (PA), were applied to determine the goodness-of-fit criteria of the distributions. The best distribution that fits with the PM10 observations was found to be gamma distribution for Nilai whereas for Shah Alam, log-normal distribution is more appropriate. The probabilities of the exceedences concentration were calculated and the return period for the coming year was predicted from the cumulative density function (cdf) obtained from the best-fit distributions. For the 2006 data, Nilai was predicted to exceed 150 μg/m3 for 2.7 days in 2007 with a return period of one occurrence per 137 days. Shah Alam was predicted to exceed 150 μg/m3 for 5.9 days in 2007 with a return period of one occurrence per 62 days. Both areas do not exceed the MAAQG of 150 μg/m3 based on 2007 data. 2013-02-16T08:28:38Z 2013-02-16T08:28:38Z 2010-04 Learning Object http://hdl.handle.net/123456789/23617 en Universiti Malaysia Perlis (UniMAP) School of Environmental Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Air pollution
Particulate matter (PM10)
Industrial area
Air quality management
spellingShingle Air pollution
Particulate matter (PM10)
Industrial area
Air quality management
Tan, Cheng Yau
Modelling of PM10 concentration in industrialized area in Malaysia: A case study in Nilai & Shah Alam
description Access is limited to UniMAP community.
author2 Norazian Mohamed Noor
author_facet Norazian Mohamed Noor
Tan, Cheng Yau
format Learning Object
author Tan, Cheng Yau
author_sort Tan, Cheng Yau
title Modelling of PM10 concentration in industrialized area in Malaysia: A case study in Nilai & Shah Alam
title_short Modelling of PM10 concentration in industrialized area in Malaysia: A case study in Nilai & Shah Alam
title_full Modelling of PM10 concentration in industrialized area in Malaysia: A case study in Nilai & Shah Alam
title_fullStr Modelling of PM10 concentration in industrialized area in Malaysia: A case study in Nilai & Shah Alam
title_full_unstemmed Modelling of PM10 concentration in industrialized area in Malaysia: A case study in Nilai & Shah Alam
title_sort modelling of pm10 concentration in industrialized area in malaysia: a case study in nilai & shah alam
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2013
url http://dspace.unimap.edu.my/xmlui/handle/123456789/23617
_version_ 1643793872994697216
score 13.214268

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