Water quality study and its relationship with high tide and low tide at Kuantan river

Water is an essential resources that sustains life on earth, changes in the natural quality and distribution of water have ecological impacts that can sometimes be devastating. Recently, Malaysian is facing a lot of environmental issues regarding water pollution. The purpose of the study was to access the hydrological properties and water quality of the Kuantan River, Pahang and how it related to low tide and high tide. The main objectives of the research of Kuantan River and its tributaries were to determine the value of Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Suspended Solids (SS), Ammoniacal Nitrogen (AN), pH and Dissolved Oxygen (DO) through field and laboratory experiments during high tide and low tide. DO and pH were analyzed as in-situ measurement while the rest of the parameters were analyzed in the laboratory. Recent activities such as residential, industrial, commercial and agricultural activities have taken place in the areas surrounding the river. The impact of these activities may have caused environmental degradation to Kuantan River and its adjacent areas by changing the water system's hydrological characteristics, with prospects of possible long term deterioration