A statistical assessment of rainfall effects on water quality in Setiu River, Terengganu

Jafrei, Fadhil Farhan (2024) A statistical assessment of rainfall effects on water quality in Setiu River, Terengganu. [Project Paper] (Submitted)

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Abstract

The Setiu River in Terengganu faces a critical challenge in understanding the intricate relationship between rainfall patterns and water quality dynamics. River quality status serve as an indicator of river condition and potential for beneficial uses because the quality of river water is determined by its physical, chemical, and biological factors. This study sets out with three primary objectives: firstly, to examine the relationship between rainfall and water quality during both wet and dry seasons; secondly, to analyze how water quality parameters vary seasonally concerning different rainfall patterns, considering both wet and dry seasons; and thirdly, to analyze the relationship between upstream and downstream stations of water quality data. Using Setiu River as a case study, rainfall data from the Department of Irrigation and Drainage (DID) and Water Quality Parameter Data from the Department of Environment (DOE) for stations Kampung Buloh and US Water Intake Kg Besut were analyzed. This study suggests that the correlation analyses during dry and wet seasons further elucidated the impact of rainfall on water quality parameters. Strong negative correlations between rainfall and pH, and positive correlations between rainfall and NH3- N during the dry season, signify potential dilution effects and increased ammonium nitrogen levels, respectively. However, longer duration and lessen interval time is needed to provide more sufficient and accurate representation of overall effect of rainfall.

Item Type:	Project Paper
Faculty:	Fakulti Perhutanan dan Alam Sekitar
Depositing User:	Ms. ROHANA ALIAS
Date Deposited:	13 May 2024 00:51
Last Modified:	01 Aug 2024 04:26
URI:	http://psaspb.upm.edu.my/id/eprint/1745

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