Time series analysis of river water quality data from a tropical urban catchment

M. F. Chow; H. Haris; L. M. Sidek

doi:10.1201/b19079-56

Time series analysis of river water quality data from a tropical urban catchment

M. F. Chow, H. Haris, L. M. Sidek

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

Abstract

Studies assessing long term changes of water quality have been recognized as a key tool for understanding ongoing processes in watersheds and for providing an essential background for evaluation of rapid changes within industrialized and populated urban areas. This study examines the trends of water quality parameters in the Pencala River in Kuala Lumpur from 1997 to 2009. The trend analysis was performed on thirteen physical and chemical parameters using the Mann-Kendall Seasonal test and the Sen’s Slope estimator. The statistical results indicated that most water quality parameters showed a downward trend for yearly average concentration. The Water Quality Index (WQI) for Pencala River was improved from Class V to Class IV, according to National Water Quality Standards for Malaysia. BOD, COD, NH₃-N and SS showed decreasing trends during the study period. The improvements seen in river water quality appear to be the result of improved wastewater treatment at the study catchment.

Original language	English
Title of host publication	Water Resources and Environment - Proceedings of the International Conference on Water Resources and Environment, WRE 2015
Editors	Miklas Scholz
Publisher	CRC Press
Pages	327-331
Number of pages	5
ISBN (Print)	9781138029095
DOIs	https://doi.org/10.1201/b19079-56
Publication status	Published - 2016
Externally published	Yes
Event	International Conference on Water Resources and Environment Research 2015 - Beijing, China Duration: 25 Jul 2015 → 28 Jul 2015 http://history.wreconf.org/2015/

Conference

Conference	International Conference on Water Resources and Environment Research 2015
Abbreviated title	WRE 2015
Country/Territory	China
City	Beijing
Period	25/07/15 → 28/07/15
Internet address	http://history.wreconf.org/2015/

Keywords

Long term changes
Mann-Kendall test
River water quality
Sen’s slope estimator

Access to Document

10.1201/b19079-56

Cite this

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title = "Time series analysis of river water quality data from a tropical urban catchment",

abstract = "Studies assessing long term changes of water quality have been recognized as a key tool for understanding ongoing processes in watersheds and for providing an essential background for evaluation of rapid changes within industrialized and populated urban areas. This study examines the trends of water quality parameters in the Pencala River in Kuala Lumpur from 1997 to 2009. The trend analysis was performed on thirteen physical and chemical parameters using the Mann-Kendall Seasonal test and the Sen{\textquoteright}s Slope estimator. The statistical results indicated that most water quality parameters showed a downward trend for yearly average concentration. The Water Quality Index (WQI) for Pencala River was improved from Class V to Class IV, according to National Water Quality Standards for Malaysia. BOD, COD, NH3-N and SS showed decreasing trends during the study period. The improvements seen in river water quality appear to be the result of improved wastewater treatment at the study catchment.",

keywords = "Long term changes, Mann-Kendall test, River water quality, Sen{\textquoteright}s slope estimator",

author = "Chow, {M. F.} and H. Haris and Sidek, {L. M.}",

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year = "2016",

doi = "10.1201/b19079-56",

language = "English",

isbn = "9781138029095",

pages = "327--331",

editor = "Miklas Scholz",

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}

Chow, MF, Haris, H & Sidek, LM 2016, Time series analysis of river water quality data from a tropical urban catchment. in M Scholz (ed.), Water Resources and Environment - Proceedings of the International Conference on Water Resources and Environment, WRE 2015. CRC Press, pp. 327-331, International Conference on Water Resources and Environment Research 2015, Beijing, China, 25/07/15. https://doi.org/10.1201/b19079-56

Time series analysis of river water quality data from a tropical urban catchment. / Chow, M. F.; Haris, H.; Sidek, L. M.
Water Resources and Environment - Proceedings of the International Conference on Water Resources and Environment, WRE 2015. ed. / Miklas Scholz. CRC Press, 2016. p. 327-331.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

TY - GEN

T1 - Time series analysis of river water quality data from a tropical urban catchment

AU - Chow, M. F.

AU - Haris, H.

AU - Sidek, L. M.

PY - 2016

Y1 - 2016

N2 - Studies assessing long term changes of water quality have been recognized as a key tool for understanding ongoing processes in watersheds and for providing an essential background for evaluation of rapid changes within industrialized and populated urban areas. This study examines the trends of water quality parameters in the Pencala River in Kuala Lumpur from 1997 to 2009. The trend analysis was performed on thirteen physical and chemical parameters using the Mann-Kendall Seasonal test and the Sen’s Slope estimator. The statistical results indicated that most water quality parameters showed a downward trend for yearly average concentration. The Water Quality Index (WQI) for Pencala River was improved from Class V to Class IV, according to National Water Quality Standards for Malaysia. BOD, COD, NH3-N and SS showed decreasing trends during the study period. The improvements seen in river water quality appear to be the result of improved wastewater treatment at the study catchment.

AB - Studies assessing long term changes of water quality have been recognized as a key tool for understanding ongoing processes in watersheds and for providing an essential background for evaluation of rapid changes within industrialized and populated urban areas. This study examines the trends of water quality parameters in the Pencala River in Kuala Lumpur from 1997 to 2009. The trend analysis was performed on thirteen physical and chemical parameters using the Mann-Kendall Seasonal test and the Sen’s Slope estimator. The statistical results indicated that most water quality parameters showed a downward trend for yearly average concentration. The Water Quality Index (WQI) for Pencala River was improved from Class V to Class IV, according to National Water Quality Standards for Malaysia. BOD, COD, NH3-N and SS showed decreasing trends during the study period. The improvements seen in river water quality appear to be the result of improved wastewater treatment at the study catchment.

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KW - Sen’s slope estimator

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ER -

Time series analysis of river water quality data from a tropical urban catchment

Abstract

Conference

Keywords

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