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.

Seafood consumption among Chinese coastal residents and health risk assessment of heavy metals in seafood

“…A fairly lower Pb level was reported in canned mussels from the Canary Islands ranging from 0.006 to 0.008 mg/kg (Gutierrez et al 2004). This study also indicated the lower concentration of Pb in crustacean (ND-0.04 mg/kg) or mollusk (ND-0.10 mg/kg) than the results reported by .20 mg/kg) (Figueira et al 2011) and Ahmed et al (4.55 ± 0.11 mg/kg) (Ahmed et al 2015). According to the previous literatures, the Pb concentration in fish (30.7 mg/kg) from Lingdingyang, crustacean (12.0 mg/kg) from Guangxi, and mollusk (6.0 mg/kg) from Hong Kong was extremely high (Wang et al 2013).…”

“…According to health risk assessment model (USEPA 2011), the possible health risk caused by seafood consumption of coastal residents was appraised using the method of target hazard quotient (THQ) (Storelli 2008;Yu et al 2014;Ahmed et al 2015). Herein, THQ is defined as the ratio of daily seafood consumption rate in relation to maximum allowable seafood consumption rate considering the carcinogenic and non-carcinogenic effects of the heavy metals, see formulas (2) and (3), respectively:…”

“…Concentrations of Cd and As in some samples of sparuslatus, N. coibor, R. philippinarum, and P. tenera were higher than the safety limits of national standards (Table 3). Here, we assumed that methyl mercury (MeHg) and inorganic As (InAs) constituted 62 % of the total Hg and 10 % of the total As, respectively (Liao and Ling 2003;Wang et al 2012;Ahmed et al 2015;Lei et al 2015).…”

Physical and Chemical Parameters and Some Heavy Metal for Three Rainy Season Months in Water and Sediments of Upper New Calabar River, Niger Delta, Nigeria

“…Due to the turbulence created by increase of flow, some sediment are carried away and displaced from the river bottom. During the Dry season (April experience Minimal rainfall as compared to June) Evaporation and temperature tend to be higher than in raining season which is in line with Ahmed et al [64].…”

Seasonal variations and sources study by way of back trajectories and ANOVA for ambient air pollutants (particulates and metallic elements) within a mixed area at Longjing, central Taiwan: 1-year observation

“…Heavy metals are ubiquitous in the environment from either natural or anthropogenic interventions that can pollute soil, water and plants including other compartments of the ecosystem and eventually affect human health and well-being (Roychowdhury et al 2003;Buschmann et al 2008;Bundschuh et al 2012;Ahmed et al 2015).…”