Seasonal variations in water quality and hydrological dynamics in a tropical reservoir driven by rainfall, runoff, and anthropogenic activities.

ABSTRACT: This study evaluates the impacts of construction activities from the Ulu Jelai Hydroelectric Project on the water quality of the Susu Reservoir, a critical freshwater system in Malaysia fed by the Telom, Mensun, Bertam, Menlock, Lemoi, and Tekai rivers. A systematic spatial-temporal analysis was conducted using 15 water quality monitoring stations (WQ1-WQ18), strategically distributed across tributaries, inflow points, and the Susu Dam. Key physicochemical, biological, and hydrological parameters, including turbidity, total suspended solids (TSS), pH, dissolved oxygen (DO), ammonia (NH₃-N), E. coli, and oil and grease (O&G), and flow rate, were analyzed across wet and dry seasons. The results revealed significant seasonal variability in water quality parameters. Dry periods were

SUBMITTER: Alkhadher SAA 

PROVIDER: S-EPMC12518574 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature