Stormwater Quality from the Sungai Lui Catchment, Malaysia

River water is continuously being impacted by pollutants generated from the catchment. In particular, substantial amounts of pollutants can be introduced to the rivers during storm events. This study was carried out to investigate the influence of storm events on the water quality parameters of t...

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Main Author:	Abdul Hamid
Format:	Thesis
Language:	English English
Published:	2005
Subjects:	Stormwater infiltration - Sungai Lui - Malaysia
Online Access:	http://psasir.upm.edu.my/id/eprint/6267/1/FPAS_2005_8.pdf
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id	my-upm-ir.6267
record_format	uketd_dc
spelling	my-upm-ir.62672023-10-19T03:42:17Z Stormwater Quality from the Sungai Lui Catchment, Malaysia 2005-12 Abdul Hamid River water is continuously being impacted by pollutants generated from the catchment. In particular, substantial amounts of pollutants can be introduced to the rivers during storm events. This study was carried out to investigate the influence of storm events on the water quality parameters of the forested Sg. Lui catchment. Stormwater samples were collected from the Sg. Lui for 21 storm events between January 2003 to January 2004. Discharge, electrical conductivity (EC), pH, dissolved oxygen (DO), turbidity, total suspended solids (TSS), total phosphorus (TP), ammoniacal nitrogen (AN) and 5-day biochemical oxygen demand (BOD5) were measured from the stormwater samples. Descriptive and inferential statistical analyses were carried out for the parameters studied. The storm events sampled from the catchment were found to represent the 24th to 88th percentile of the average daily discharge for a typical year. Total suspended s lids and turbidity appeared to be the major pollutants to the Sg. Lui catchment. The results indicated a dilution-mobilization sequence in the concentration of TSS, TP, AN and the BOD5 during the rising and falling limbs of the event hydrograph. A late flushing of materials was also observed, where much of the load was transported in the later half of an event. Event mean concentrations (EMC) were calculated for TSS, TP, AN and BOD5 for the catchment. Hydrometeorological conditions of the catchment were used to explain the differences in the EMC values for the different events. This study revealed that the water quality of the Sg. Lui catchment is influenced by the hydrometeorological conditions of the catchment. Statistical analyses confirmed the representativeness of the flow and the EMCs calculated for the Sg. Lui catchment. Discrete sampling enabled the detailed analysis of the hydrographs, pollutographs and loadographs. This assisted in understanding the processes influencing the temporal variability of the flow and water quality of the catchment during storm events. Stormwater infiltration - Sungai Lui - Malaysia 2005-12 Thesis http://psasir.upm.edu.my/id/eprint/6267/ http://psasir.upm.edu.my/id/eprint/6267/1/FPAS_2005_8.pdf text en public doctoral Universiti Putra Malaysia Stormwater infiltration - Sungai Lui - Malaysia Faculty Environmental Studies Ibrahim, Zelina Zaiton English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
advisor	Ibrahim, Zelina Zaiton
topic	Stormwater infiltration - Sungai Lui - Malaysia
spellingShingle	Stormwater infiltration - Sungai Lui - Malaysia Abdul Hamid Stormwater Quality from the Sungai Lui Catchment, Malaysia
description	River water is continuously being impacted by pollutants generated from the catchment. In particular, substantial amounts of pollutants can be introduced to the rivers during storm events. This study was carried out to investigate the influence of storm events on the water quality parameters of the forested Sg. Lui catchment. Stormwater samples were collected from the Sg. Lui for 21 storm events between January 2003 to January 2004. Discharge, electrical conductivity (EC), pH, dissolved oxygen (DO), turbidity, total suspended solids (TSS), total phosphorus (TP), ammoniacal nitrogen (AN) and 5-day biochemical oxygen demand (BOD5) were measured from the stormwater samples. Descriptive and inferential statistical analyses were carried out for the parameters studied. The storm events sampled from the catchment were found to represent the 24th to 88th percentile of the average daily discharge for a typical year. Total suspended s lids and turbidity appeared to be the major pollutants to the Sg. Lui catchment. The results indicated a dilution-mobilization sequence in the concentration of TSS, TP, AN and the BOD5 during the rising and falling limbs of the event hydrograph. A late flushing of materials was also observed, where much of the load was transported in the later half of an event. Event mean concentrations (EMC) were calculated for TSS, TP, AN and BOD5 for the catchment. Hydrometeorological conditions of the catchment were used to explain the differences in the EMC values for the different events. This study revealed that the water quality of the Sg. Lui catchment is influenced by the hydrometeorological conditions of the catchment. Statistical analyses confirmed the representativeness of the flow and the EMCs calculated for the Sg. Lui catchment. Discrete sampling enabled the detailed analysis of the hydrographs, pollutographs and loadographs. This assisted in understanding the processes influencing the temporal variability of the flow and water quality of the catchment during storm events.
format	Thesis
qualification_level	Doctorate
author	Abdul Hamid
author_facet	Abdul Hamid
author_sort	Abdul Hamid
title	Stormwater Quality from the Sungai Lui Catchment, Malaysia
title_short	Stormwater Quality from the Sungai Lui Catchment, Malaysia
title_full	Stormwater Quality from the Sungai Lui Catchment, Malaysia
title_fullStr	Stormwater Quality from the Sungai Lui Catchment, Malaysia
title_full_unstemmed	Stormwater Quality from the Sungai Lui Catchment, Malaysia
title_sort	stormwater quality from the sungai lui catchment, malaysia
granting_institution	Universiti Putra Malaysia
granting_department	Faculty Environmental Studies
publishDate	2005
url	http://psasir.upm.edu.my/id/eprint/6267/1/FPAS_2005_8.pdf
_version_	1783725716923219968

Stormwater Quality from the Sungai Lui Catchment, Malaysia

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