Nor Faiza Abd Rahman,Juliza Mohamad,Munira Mohammad,Mohamad Shakri Mohamad Shariff,Vin Cent Tai, Khairi Khalid,



Nutrient,Total Phosphorus,Total Nitrogen,Langat River Basin,,


Water is one of the most important elements required by all living organisms. However, uncontrolled developments and human activities have significantly affected the water quality in the river. Excessive nutrient discharge into the river will lead to many problems such as eutrophication, apart from disturbing the water supply. This study has been conducted to determine the nutrient concentration and nutrient loads in the Langat River Basin in terms of total phosphorus (TP) and total nitrogen (TN), as well as their relationship with the rainfall.  Four stations from the Langat River Basin upstream have been selected for this study. The water samples were collected weekly for six months spanning both dry and wet seasons. Two standard methods for examination of water and wastewater were chosen to determine the TN and TP concentration in the water sample. Method 8190 was used for TP while, TN was measured using Method 10071. The results showed that the nutrients in the water bodies generally were influenced by the land use, climate and stream flow of the river. The TN concentration for all four stations were within the USEPA limit. On the contrary, the TP concentration for all stations exceeded the USEPA limit, indicated that limiting nitrogen condition might happen and triggered algae bloom.


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