Abstract

• A total of five fish species; two herbivores (Labeo rohita and Oreochromis sp.), two carnivores (Glossogobius giuris and Channa striata) and one omnivore (Trichopodus pectoralis) from Kaung-hnu-daw In (Lake), Sagaing Township, Sagaing Region was selected to assess the toxic metals such as lead (Pb), cadmium (Cd) and arsenic (As) during the study period from February 2019 to January 2020. Samples of fish muscles, water and sediment were collected on seasonal basis and analysed by Flame Atomic Absorption Spectrometer (FAAS) in Universities’ Research Center (URC) at University of Yangon. The concentration levels of studied fish species except T. pectoralis was observed to be lower than that of FAO/WHO (2001) maximum permissible limits. Arsenic (As) concentration of T. pectoralis was found to be higher than the maximum permissible limit in cold season. Moreover, Cd, Pb and As concentration levels of water and sediment were detected far exceed than the FAO/WHO (2001) permissible limit.