Concentrations of arsenic in freshwater, estuarine and mangrove clams from the Mekong and Red R. deltas
AbstractDuring 2017-2018 arsenic concentrations in soft tissues of economically important bivalves from the Mekong and the Red R. Deltas were estimated. Freshwater, estuarine and mangroves species in 10 genera from 11 sites were analyzed. Arsenic levels in both freshwater and estuarine clams were below the permissible limits for hazardous substances in fish and fishery products for recommendation of FAO. In the contrary, in mangrove clams Geloina increased levels of As were found. Target hazard quotients and target cancer risk of As was calculated. Arsenic concentrations in the tissues of the Geloina are estimated to pose a rather high total cancer risk to consumers.
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