Determination Of Coefficient For Pm10 Monitoring Using An Optical Direct Reading Instrument And Beta Attenuation Monitor

This research compares PM10 mass concentration record generated by two types of aerosol monitoring devices, the Optical Direct Reading Monitor (ODRM) and the BAM1020, were collocated outdoors at Perai and Seberang Jaya. ODRM records were adjusted to predict Beta Attenuation Monitor (BAM) with a c...

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Main Author:	Mohtar, Zul Azmi
Format:	Thesis
Language:	English
Published:	2013
Subjects:	TA1-2040 Engineering (General) Civil engineering (General)
Online Access:	http://eprints.usm.my/44037/1/Zul%20Azmi%20Bin%20Mohtar24.pdf
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id	my-usm-ep.44037
record_format	uketd_dc
spelling	my-usm-ep.440372019-04-12T05:26:16Z Determination Of Coefficient For Pm10 Monitoring Using An Optical Direct Reading Instrument And Beta Attenuation Monitor 2013-05 Mohtar, Zul Azmi TA1-2040 Engineering (General). Civil engineering (General) This research compares PM10 mass concentration record generated by two types of aerosol monitoring devices, the Optical Direct Reading Monitor (ODRM) and the BAM1020, were collocated outdoors at Perai and Seberang Jaya. ODRM records were adjusted to predict Beta Attenuation Monitor (BAM) with a correction factor k derived from co-located BAM and ODRM at a research site to make data comparable in real terms. Predicted BAM records were obtained using quantile regression. Performance indicator such as Coefficient of Determination (R2), Index of Agreement (IA), Normalised Absolute Error (NAE) and Root Mean Square Error (RMSE) were used to measure the accuracy of the predicted BAM and actual BAM. The k was successfully identified for Five Groups of Percentile and Seven Groups of Percentile. For both methods, monitoring records were treated using two techniques and named as Clean Record and Original Record. Clean Records removed the first two days records and concentrations lower than 10 μg/m³. For Original Record, only the first two days (48 hours) records were removed. Positive significant correlation was found between PM10 and temperature at all station using ODRM and BAM. However, for correlation between PM10 and RH, all stations showed negative correlation except Perai station using ODRM (0.901). The equation model used for predicted BAM is . pred BAM    kx which is  . is constant value and x is observed ODRM. Five Groups of Percentile using Clean Record is the best for both stations. R2 value for Five Groups of Percentile for Perai is 0.9170 and 0.9422 for Seberang Jaya compared with Seven Groups of Percentiles that is 0.8795 for Perai and 0.8402 for Seberang Jaya. Hence, simple optical direct reading instrument can be used as a surrogate to measure PM10 following statistical calibration by using quantile regression. 2013-05 Thesis http://eprints.usm.my/44037/ http://eprints.usm.my/44037/1/Zul%20Azmi%20Bin%20Mohtar24.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Awam
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	TA1-2040 Engineering (General) Civil engineering (General)
spellingShingle	TA1-2040 Engineering (General) Civil engineering (General) Mohtar, Zul Azmi Determination Of Coefficient For Pm10 Monitoring Using An Optical Direct Reading Instrument And Beta Attenuation Monitor
description	This research compares PM10 mass concentration record generated by two types of aerosol monitoring devices, the Optical Direct Reading Monitor (ODRM) and the BAM1020, were collocated outdoors at Perai and Seberang Jaya. ODRM records were adjusted to predict Beta Attenuation Monitor (BAM) with a correction factor k derived from co-located BAM and ODRM at a research site to make data comparable in real terms. Predicted BAM records were obtained using quantile regression. Performance indicator such as Coefficient of Determination (R2), Index of Agreement (IA), Normalised Absolute Error (NAE) and Root Mean Square Error (RMSE) were used to measure the accuracy of the predicted BAM and actual BAM. The k was successfully identified for Five Groups of Percentile and Seven Groups of Percentile. For both methods, monitoring records were treated using two techniques and named as Clean Record and Original Record. Clean Records removed the first two days records and concentrations lower than 10 μg/m³. For Original Record, only the first two days (48 hours) records were removed. Positive significant correlation was found between PM10 and temperature at all station using ODRM and BAM. However, for correlation between PM10 and RH, all stations showed negative correlation except Perai station using ODRM (0.901). The equation model used for predicted BAM is . pred BAM    kx which is  . is constant value and x is observed ODRM. Five Groups of Percentile using Clean Record is the best for both stations. R2 value for Five Groups of Percentile for Perai is 0.9170 and 0.9422 for Seberang Jaya compared with Seven Groups of Percentiles that is 0.8795 for Perai and 0.8402 for Seberang Jaya. Hence, simple optical direct reading instrument can be used as a surrogate to measure PM10 following statistical calibration by using quantile regression.
format	Thesis
qualification_level	Master's degree
author	Mohtar, Zul Azmi
author_facet	Mohtar, Zul Azmi
author_sort	Mohtar, Zul Azmi
title	Determination Of Coefficient For Pm10 Monitoring Using An Optical Direct Reading Instrument And Beta Attenuation Monitor
title_short	Determination Of Coefficient For Pm10 Monitoring Using An Optical Direct Reading Instrument And Beta Attenuation Monitor
title_full	Determination Of Coefficient For Pm10 Monitoring Using An Optical Direct Reading Instrument And Beta Attenuation Monitor
title_fullStr	Determination Of Coefficient For Pm10 Monitoring Using An Optical Direct Reading Instrument And Beta Attenuation Monitor
title_full_unstemmed	Determination Of Coefficient For Pm10 Monitoring Using An Optical Direct Reading Instrument And Beta Attenuation Monitor
title_sort	determination of coefficient for pm10 monitoring using an optical direct reading instrument and beta attenuation monitor
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Awam
publishDate	2013
url	http://eprints.usm.my/44037/1/Zul%20Azmi%20Bin%20Mohtar24.pdf
_version_	1747821323830165504

Determination Of Coefficient For Pm10 Monitoring Using An Optical Direct Reading Instrument And Beta Attenuation Monitor

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