Stormwater quality and pollutants loading from catchments at Sungai Johor

Sungai Johor is an important water resource in terms of aquaculture, agriculture and source of drinking water for the entire Kota Tinggi, Skudai, and Iskandar Puteri districts as well as Singapore. However, a tropical downpour may increase pollutants loading in the river which in turn may affect its...

Full description

Saved in:

Bibliographic Details
Main Author:	Kamarudin, Asmida
Format:	Thesis
Language:	English
Published:	2017
Subjects:	Q Science (General)
Online Access:	http://eprints.utm.my/id/eprint/77863/1/AsmidaKamarudinMFS2017.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-utm-ep.77863
record_format	uketd_dc
spelling	my-utm-ep.778632018-07-23T05:45:58Z Stormwater quality and pollutants loading from catchments at Sungai Johor 2017-05 Kamarudin, Asmida Q Science (General) Sungai Johor is an important water resource in terms of aquaculture, agriculture and source of drinking water for the entire Kota Tinggi, Skudai, and Iskandar Puteri districts as well as Singapore. However, a tropical downpour may increase pollutants loading in the river which in turn may affect its beneficial uses. The purpose of this study is to investigate the concentrations and loading of pollutants in stormflow. Comparisons were made against baseflow for two different landuses, agricultural and suburban catchment areas. Three sampling stations namely Sungai Sebol (A1), Sungai Penggeli (A2) and Rantau Panjang (A3) were chosen to represent agricultural landuse, while Sungai Kemang (U1), Sungai Kampung Kelantan (U2) and Sungai Pemandi (U3) as the suburban. Parameters studied include water quality (DO, BOD, COD, TSS, pH and NH3), nutrients (NO3-, NO2-, TN, PO43- and TP), metals (As, Cd, Cr, Cu, Mn, Ni, Hg, Zn, Al, Fe and Pb) and organophosphorus pesticides (malathion and chlorpyrifos). Comparison were made based on concentration, pollutant loading, pollutograph and first flush to evaluate the effect of storm event on the water quality of the studied tributaries. The study shows in general, during baseflow, most parameters were within the Class II and Class III of NWQS. However, stormflow increases the concentration and loading of pollutants, in particular for BOD, COD, TSS, NO3-, TP, Hg and Fe. The use of pollutants load, rather than concentration, is a better representative for river quality because the amount of rainfall, water discharge and catchment size do affect the measured water quality of river during a storm. Parameters in agricultural catchment were dominantly classified in Type 1 while most of the parameters in suburban followed the Type 2 classification of pollutograph. Most of the pollutants in A1 and A2 catchments did not exhibit any first flush phenomenon while the pollutants in suburban catchments only show moderate first flush. Therefore, based on the positive and strong correlation between pollutants and amount of rainfall, it can be concluded that rainfall does influence the mobilization of pollutants into surface water during storm events. The study suggests that stormflow does have a great effect in increasing pollutant concentration and loading, which then may affect the existing beneficial uses of the river. 2017-05 Thesis http://eprints.utm.my/id/eprint/77863/ http://eprints.utm.my/id/eprint/77863/1/AsmidaKamarudinMFS2017.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:105111 masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Kamarudin, Asmida Stormwater quality and pollutants loading from catchments at Sungai Johor
description	Sungai Johor is an important water resource in terms of aquaculture, agriculture and source of drinking water for the entire Kota Tinggi, Skudai, and Iskandar Puteri districts as well as Singapore. However, a tropical downpour may increase pollutants loading in the river which in turn may affect its beneficial uses. The purpose of this study is to investigate the concentrations and loading of pollutants in stormflow. Comparisons were made against baseflow for two different landuses, agricultural and suburban catchment areas. Three sampling stations namely Sungai Sebol (A1), Sungai Penggeli (A2) and Rantau Panjang (A3) were chosen to represent agricultural landuse, while Sungai Kemang (U1), Sungai Kampung Kelantan (U2) and Sungai Pemandi (U3) as the suburban. Parameters studied include water quality (DO, BOD, COD, TSS, pH and NH3), nutrients (NO3-, NO2-, TN, PO43- and TP), metals (As, Cd, Cr, Cu, Mn, Ni, Hg, Zn, Al, Fe and Pb) and organophosphorus pesticides (malathion and chlorpyrifos). Comparison were made based on concentration, pollutant loading, pollutograph and first flush to evaluate the effect of storm event on the water quality of the studied tributaries. The study shows in general, during baseflow, most parameters were within the Class II and Class III of NWQS. However, stormflow increases the concentration and loading of pollutants, in particular for BOD, COD, TSS, NO3-, TP, Hg and Fe. The use of pollutants load, rather than concentration, is a better representative for river quality because the amount of rainfall, water discharge and catchment size do affect the measured water quality of river during a storm. Parameters in agricultural catchment were dominantly classified in Type 1 while most of the parameters in suburban followed the Type 2 classification of pollutograph. Most of the pollutants in A1 and A2 catchments did not exhibit any first flush phenomenon while the pollutants in suburban catchments only show moderate first flush. Therefore, based on the positive and strong correlation between pollutants and amount of rainfall, it can be concluded that rainfall does influence the mobilization of pollutants into surface water during storm events. The study suggests that stormflow does have a great effect in increasing pollutant concentration and loading, which then may affect the existing beneficial uses of the river.
format	Thesis
qualification_level	Master's degree
author	Kamarudin, Asmida
author_facet	Kamarudin, Asmida
author_sort	Kamarudin, Asmida
title	Stormwater quality and pollutants loading from catchments at Sungai Johor
title_short	Stormwater quality and pollutants loading from catchments at Sungai Johor
title_full	Stormwater quality and pollutants loading from catchments at Sungai Johor
title_fullStr	Stormwater quality and pollutants loading from catchments at Sungai Johor
title_full_unstemmed	Stormwater quality and pollutants loading from catchments at Sungai Johor
title_sort	stormwater quality and pollutants loading from catchments at sungai johor
granting_institution	Universiti Teknologi Malaysia, Faculty of Science
granting_department	Faculty of Science
publishDate	2017
url	http://eprints.utm.my/id/eprint/77863/1/AsmidaKamarudinMFS2017.pdf
_version_	1747817849523535872

Stormwater quality and pollutants loading from catchments at Sungai Johor

Similar Items