Abstract

Siganus fuscescens Houttuyn, 1782 is one of the common fish species in Quang Binh province and consumers are favored by its high nutritional value. However, the consumption of Siganus fuscescens may pose potential risks to human health since they can accumulate significant amounts of heavy metals in their tissues. From July to October 2019, a total of 50 individuals of Siganus fuscescens were randomly collected through fishermen at local markets in Quang Binh province. Liver, gills, and muscles were dissected and analyzed for cadmium, lead, copper, zinc, and iron contents by the flame atomic absorption spectrometer, and the cold vapor atomic absorption spectrometer for mercury content. The metal content in all tested samples was lower than the threshold limit value by the Vietnamese Ministry of Health (MoH). The risk to human health by the intake of metal contaminated Siganus fuscescens was evaluated by estimated daily intake (EDI), target hazard quotient (THQ), and hazard index (HI). All the EDI values were below the provisional tolerable daily intake (PTDI) set by the MoH, and all of THQ and HI values for male and female consumers did not exceed 1, indicating that there was no potential human health risk in consuming Siganus fuscescens from coastal areas of Quang Binh province.

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