title: Human health risk assessment of heavy metals in tropical fish and shellfish collected from the river Buriganga, Bangladesh.
abstract: Although fish, crustacean, and shellfish are significant sources of protein, they are currently affected by rapid industrialization, resulting in increased concentrations of heavy metals. Accumulation of heavy metals (V, Cr, Mn, Ni, Cu, Zn, As, Se, Mo, Ag, Cd, Sb, Ba, and Pb) and associated human health risk were investigated in three fish species, namely Ailia coila, Gagata youssoufi, and Mastacembelus pancalus; one crustacean (prawn), Macrobrachium rosenbergii; and one Gastropoda, Indoplanorbis exustus, collected from the Buriganga River, Bangladesh. Samples were collected from the professional fishermen. Cu was the most accumulated metal in M. rosenbergii. Ni, As, Ag, and Sb were in relatively lower concentrations, whereas relatively higher accumulation of Cr, Mn, Zn, and Se were recorded. Mn, Zn, and Pb were present in higher concentrations than the guidelines of various authorities. There were significant differences in metal accumulation among different fish, prawn, or shellfish species. Target hazard quotient (THQ) and target cancer risk (TR) were calculated to estimate the non-carcinogenic and carcinogenic health risks, respectively. The THQ for individual heavy metals were below 1 suggesting no potential health risk. But combined impact, estimated by hazard index (HI), suggested health risk for M. pancalus consumption. Although consumption of fish at current accumulation level is safe but continuous and excess consumption for a life time of more than 70 years has probability of target cancer risk.
authors.affiliation: Department of Fisheries, University of Dhaka, Dhaka, 1000, Bangladesh.
authors.forename: Md Kawser
authors.initials: MK
authors.lastname: Ahmed
authors.affiliation: Department of Zoology, Jagannath University, Dhaka, 1100, Bangladesh.
authors.forename: Mohammad Abdul
authors.initials: MA
authors.lastname: Baki
authors.affiliation: Department of Risk Management and Environmental Sciences, Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Kanagawa, 240-8501, Japan.
authors.forename: Md Saiful
authors.initials: MS
authors.lastname: Islam
authors.affiliation: Department of Fisheries, University of Dhaka, Dhaka, 1000, Bangladesh.
authors.forename: Goutam Kumar
authors.initials: GK
authors.lastname: Kundu
authors.affiliation: Department of Fisheries, University of Dhaka, Dhaka, 1000, Bangladesh. almamunhabib@du.ac.bd.|Department of Risk Management and Environmental Sciences, Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Kanagawa, 240-8501, Japan. almamunhabib@du.ac.bd.
authors.forename: Md
authors.initials: M
authors.lastname: Habibullah-Al-Mamun
authors.affiliation: Department of Marine Science, Calcutta University, Kolkata, India.
authors.forename: Santosh Kumar
authors.initials: SK
authors.lastname: Sarkar
authors.affiliation: Department of Zoology, Jagannath University, Dhaka, 1100, Bangladesh.
authors.forename: Md Muzammel
authors.initials: MM
authors.lastname: Hossain
mesh_terms: D000818:Animals; D001459:Bangladesh; D004784:Environmental Monitoring; D005399:Fishes; D006801:Humans; D019216:Metals, Heavy / Q000032:analysis* / Q000633:toxicity; D018570:Risk Assessment; D045483:Rivers / Q000737:chemistry*; D012758:Shellfish / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000633:toxicity
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical
keywords: Bioaccumulation; Fish; Heavy metal; Target cancer risk; Target hazard quotient