A. NajahF. Y. TeoM. F. ChowY. F. HuangS. D. LatifS. AbdullahM. IsmailA. El-Shafie2024-05-202024-05-202021Najah, A., Teo, F. Y., Chow, M. F., Huang, Y. F., Latif, S. D., Abdullah, S., ... & El-Shafie, A. (2021). Surface water quality status and prediction during movement control operation order under COVID-19 pandemic: Case studies in Malaysia. International Journal of Environmental Science and Technology, 18, 1009-1018.https://repoemc.ukm.my/handle/123456789/1515In this study, first, a reconnaissance survey was carried out on the effects of MCO on the health conditions of two urban rivers (i.e., Rivers of Klang and Penang) in Malaysia. Secondly, the effect of MCO lockdown on the water quality index (WQI) of a lake (Putrajaya Lake) in Malaysia is considered in this study. Finally, four machine learning algorithms have been investigated to predict WQI and the class in Putrajaya Lake.enWater quality indexSurface water qualityMovement control operationCOVID-19 pandemicJournal