International Science Community Association Research Journal of Chemical Sciences 2231 - 606X 7 2 2017 02 18 Assessment of trace elements in some commonly consumed fish species marketed in Kathmandu, Nepal 42 48 EN J.B. Nvau 1 Chemistry Department, Plateau State University, Bokkos. Plateau State, Nigeria M.B. Wufem 2 Chemistry Department, Plateau State University, Bokkos. Plateau State, Nigeria J.G. Nangbes 3 Chemistry Department, Plateau State University, Bokkos. Plateau State, Nigeria E.S. Gamaniel 4 Department of Traditional Medicine Research and Plant Medicine, National institute for Pharmaceutical Research and Development Idu Industrial area, Abuja, Nigeria U. Faruq 5 Chemistry Department, Usmanu Danfodiyo University, Sokoto, Nigeria J.S. Gushit 6 Department of Science Laboratory Technology, University of Jos, Nigeria B.A. Laibi 1 Laboratoire d’Etude et de Recherche en Chimie Appliquée, Ecole Polytechnique d’Abomey-Calavi, Université d’Abomey-Calavi, 01 BP 2009 Cotonou, République du Bénin, Equipe Structure et Comportement Thermomécanique des Matériaux (ESTM) du Crismat, UMR 6508, Ensicaen, 6 boulevard du Maréchal Juin, 14050 Caen Cedex 4, France & Laboratoire de Chimie Inorganique et de l\'Environnement (LACIE), Département de Chimie, Faculté des Sciences et Techniques Université d’Abomey-Calavi, 01 BP 4521 Cotonou, République du Bénin M. Gomina 2 Equipe Structure et Comportement Thermomécanique des Matériaux (ESTM) du Crismat, UMR 6508, Ensicaen, 6 boulevard du Maréchal Juin, 14050 Caen Cedex 4, France E. Sagbo 3 Laboratoire de Chimie Inorganique et de l\'Environnement (LACIE), Département de Chimie, Faculté des Sciences et Techniques Université d’Abomey-Calavi, 01 BP 4521 Cotonou, République du Bénin M. Agbahoungbata 4 Laboratoire de Chimie Inorganique et de l\'Environnement (LACIE), Département de Chimie, Faculté des Sciences et Techniques Université d’Abomey-Calavi, 01 BP 4521 Cotonou, République du Bénin P. Poullain 5 Institut de Recherche en Génie Civil et Mécanique UMR 6183 Technologie des Matériaux (GeM), France N. Leklou 6 Institut de Recherche en Génie Civil et Mécanique UMR 6183 Technologie des Matériaux (GeM), France K.C.D. Sohounhloule 7 Laboratoire d’Etude et de Recherche en Chimie Appliquée, Ecole Polytechnique d’Abomey-Calavi, Université d’Abomey-Calavi, 01 BP 2009 Cotonou, République du Bénin Al-Saadawy Nuha H. 1 University of Thi-Qar, College of Pharmacy, Department of Pharmaceutical Chemistry, Thi-Qar, Iraq Eashwarage I.S. 1 Food Technology Section, Industrial Technology Institute, No: 363, Bauddhaloka Mawatha, Colombo, Sri Lanka Herath H.M.T. 2 Food Technology Section, Industrial Technology Institute, No: 363, Bauddhaloka Mawatha, Colombo, Sri Lanka Gunathilake K.G.T. 3 Food Technology Section, Industrial Technology Institute, No: 363, Bauddhaloka Mawatha, Colombo, Sri Lanka J. Mpika 1 Laboratoire de Physiologie et de production Végétales, Faculté des Sciences et Techniques, Université Marien NGOUABI BP 69 République du Congo M.G. Okiemy Akeli 2 Laboratoire de Physiologie et de production Végétales, Faculté des Sciences et Techniques, Université Marien NGOUABI BP 69 République du Congo, Laboratoire de Biochimie, Ecole Normale Supérieure, Université Marien NGOUABI BP 69 République du Congo Tsiba Gouollaly 3 Laboratoire de Valorisation des Plantes aromatiques, Alicamentaires et Médicales, Faculté des Sciences et Techniques, Université Marien NGOUABI BP 69 République du Congo M. Samboula 4 Laboratoire de Physiologie et de production Végétales, Faculté des Sciences et Techniques, Université Marien NGOUABI BP 69 République du Congo . Attibayeba 5 Laboratoire de Physiologie et de production Végétales, Faculté des Sciences et Techniques, Université Marien NGOUABI BP 69 République du Congo Kaji Shakya Ramesh 1 Department of Zoology, Padma Kanya Multiple Campus, Tribhuvan University, Nepal Prasad Sharma Krishna 2 Department of Chemistry, Butwal Multiple Campus, Tribhuvan University, Nepal Alam Siddique Mohd Nur E 3 Global Environment Consutant Limited, Dhaka, Bangladesh Raj Shakya Pawan 4 Department of Chemistry, Padma Kanya Multiple Campus, Tribhuvan University, Nepal > Research Paper 2016 12 12 2017 02 18 In recent years, the consumption of fish in Nepal has been increasing largely due to its high nutritional value. However, it could bring serious health impacts due to heavy metals in elevated quantity since bioaccumulation of metals in aquatic inhabitants enter into human body through food chain. In this study, levels of Pb and Cd were determined by Atomic Absorption Spectrophotometer (AAS) in a total of 20 fish samples of four fish species viz., Buhari (Wallago attu), Mugree (Clarias batrachus), Catla (Catla catla) and Rohu (Labeo rohita) marketed in Kathmandu. Four various organs (liver, flesh, intestine and gills) of each fish species were analyzed as potential sites for accumulation of these toxic metals. The overall concentration ranges considering all the organs for the metals analyzed in mg kg-1 (dry basis) were Pb (0.02 – 0.47) and Cd (0.01 – 0.29) for Buhari (Wallago attu), Pb (0.02 – 1.29) and Cd (0.04 – 0.24) for Mugree (Clarias batrachus), Pb (0.02 – 0.11) and Cd (0.01 – 0.22) for Catla (Catla catla) and Pb (0.02 – 1.10) and Cd (0.01 – 0.39) for Rohu (Labeo rohita). The results also revealed variation in metal concentration in various organs of the fish species. All the fish samples except Buhari (Wallago attu) recorded higher accumulation of Pb and Cd in gills. An estimation of Pb and Cd weekly intake through the fish consumption was also investigated. The results showed that the concentrations of Pb and Cd in these fish species did not exceed the maximum permitted limits set forth by FAO/WHO indicating that they are safe for human consumption. However, a regular monitoring and assessment of toxic contaminants in fish marketed in Kathmandu is needed to help safeguard the health of humans and environment as well. Copyright@ International Science Community Association