Hydrological change effects on Sungai Langat Water quality

This study attempts to assess the impact of various types of land use along Sungai Langat and describes hydrological change and water quality variation along this river. This study also determines water quality of Sungai Langat based on low flow dry period Q100,7 using the application of QUAL2K. Dis...

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Main Authors:	Marina Zainal Abidin, Ahmad Abas Kutty, Tukimat Lihan, Nurul Akhma Zakaria
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2018
Online Access:	http://journalarticle.ukm.my/12155/ http://journalarticle.ukm.my/12155/ http://journalarticle.ukm.my/12155/1/07%20Marina%20Zainal%20Abidin.pdf

id	ukm-12155
recordtype	eprints
spelling	ukm-121552018-10-08T13:41:23Z http://journalarticle.ukm.my/12155/ Hydrological change effects on Sungai Langat Water quality Marina Zainal Abidin, Ahmad Abas Kutty, Tukimat Lihan, Nurul Akhma Zakaria, This study attempts to assess the impact of various types of land use along Sungai Langat and describes hydrological change and water quality variation along this river. This study also determines water quality of Sungai Langat based on low flow dry period Q100,7 using the application of QUAL2K. Dissolved oxygen (DO), pH, temperature and conductivity were measured in situ. Biochemical oxygen demand (BOD5), ammonia nitrogen (NH3-N) and total suspended solid (TSS) were analysed according to the standard methods (APHA). Water quality data was referred to National Water Quality Standards for Malaysia (NWQS) proposed by Malaysian Department of Environment (DOE) to estimate Sungai Langat water quality status. Four important water quality parameters namely DO, BOD5, NH3-N and TSS were simulated with QUAL2K version 2.07 for 83.67 km. As regard to individual parameter, DO classified this river into class III, BOD5 in Class II, NH3-N in Class IV and TSS in Class I. Based on QUAL2K simulation for low flow scenario, the results clearly demonstrates a gradually reduction of DO and BOD5 whereas NH3-N and TSS display opposite. Only NH3-N was found significantly increase which cause low water quality class towards the downstream. Three parameters namely DO, BOD5 and NH3-N show effects of industrial which approximately located at the middle of river stretch. The TSS was contributed to the river system at the upstream and downstream of the river stretch which most likely from sand mining activity which located at Sungai Long, Cheras (near R5) and Sungai Semenyih (R11). Penerbit Universiti Kebangsaan Malaysia 2018-07 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/12155/1/07%20Marina%20Zainal%20Abidin.pdf Marina Zainal Abidin, and Ahmad Abas Kutty, and Tukimat Lihan, and Nurul Akhma Zakaria, (2018) Hydrological change effects on Sungai Langat Water quality. Sains Malaysiana, 47 (7). pp. 1401-1411. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol47num7_2018/contentsVol47num7_2018.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	This study attempts to assess the impact of various types of land use along Sungai Langat and describes hydrological change and water quality variation along this river. This study also determines water quality of Sungai Langat based on low flow dry period Q100,7 using the application of QUAL2K. Dissolved oxygen (DO), pH, temperature and conductivity were measured in situ. Biochemical oxygen demand (BOD5), ammonia nitrogen (NH3-N) and total suspended solid (TSS) were analysed according to the standard methods (APHA). Water quality data was referred to National Water Quality Standards for Malaysia (NWQS) proposed by Malaysian Department of Environment (DOE) to estimate Sungai Langat water quality status. Four important water quality parameters namely DO, BOD5, NH3-N and TSS were simulated with QUAL2K version 2.07 for 83.67 km. As regard to individual parameter, DO classified this river into class III, BOD5 in Class II, NH3-N in Class IV and TSS in Class I. Based on QUAL2K simulation for low flow scenario, the results clearly demonstrates a gradually reduction of DO and BOD5 whereas NH3-N and TSS display opposite. Only NH3-N was found significantly increase which cause low water quality class towards the downstream. Three parameters namely DO, BOD5 and NH3-N show effects of industrial which approximately located at the middle of river stretch. The TSS was contributed to the river system at the upstream and downstream of the river stretch which most likely from sand mining activity which located at Sungai Long, Cheras (near R5) and Sungai Semenyih (R11).
format	Article
author	Marina Zainal Abidin, Ahmad Abas Kutty, Tukimat Lihan, Nurul Akhma Zakaria,
spellingShingle	Marina Zainal Abidin, Ahmad Abas Kutty, Tukimat Lihan, Nurul Akhma Zakaria, Hydrological change effects on Sungai Langat Water quality
author_facet	Marina Zainal Abidin, Ahmad Abas Kutty, Tukimat Lihan, Nurul Akhma Zakaria,
author_sort	Marina Zainal Abidin,
title	Hydrological change effects on Sungai Langat Water quality
title_short	Hydrological change effects on Sungai Langat Water quality
title_full	Hydrological change effects on Sungai Langat Water quality
title_fullStr	Hydrological change effects on Sungai Langat Water quality
title_full_unstemmed	Hydrological change effects on Sungai Langat Water quality
title_sort	hydrological change effects on sungai langat water quality
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2018
url	http://journalarticle.ukm.my/12155/ http://journalarticle.ukm.my/12155/ http://journalarticle.ukm.my/12155/1/07%20Marina%20Zainal%20Abidin.pdf
first_indexed	2023-09-18T20:01:59Z
last_indexed	2023-09-18T20:01:59Z
_version_	1777406909405462528

Hydrological change effects on Sungai Langat Water quality

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