doi: 10.18178/ijesd.2022.13.6.1398
Heavy Metal Concentrations in Hard Clam <i>Meretrix lyrata</i> and the Coastal Environment of Tien River Estuary, Mekong Delta
,
Phuoc-Dan Nguyen2
,
Quoc-Tuc Dinh3 ,
Huu-Viet Nguyen2 ,
Emilie Strady4 ,
Sunghee Han5
- 1Institute for Tropical Technology and
- 2University of
- 3Département de Chimie-Université de Montréal
- 4French Research Institute for Sustainable
- 5Gwangju Institute of Science and Technology
Abstract
The coastal area surrounding MekongDelta-Vietnam (MDV) is one of the largest clam farming sites inVietnam. Furthermore, previous studies showed that the rapidgrowth of urbanization, industrialization, and agriculture leadto the contamination of heavy metals in MDV. Therefore, thisstudy is aimed to evaluate the presence of cadmium (Cd),cooper (Cu), lead (Pb) and zinc (Zn) in sea water, sediment, aswell as hard clam (<em>Meretrix lyrata</em>) around coastal area of TienRiver Estuary named Tan Thanh. The results showed that allstudied metals’ concentrations in sediment were lower than thelimits of marine sediment quality guidelines, except Zn. Thelevels of studied metals in clam samples were less than themaximum values of metals in food which regulated byCommission Regulation 1881/2006 and some countries.Concentrations of Cd, Cu, Pb and Zn in the clam flesh wereranging between 0.01 and 1.34 mg kg<sup>-1</sup>, 1.1 and 15.8 mg kg<sup>-1</sup>, notdetected and 0.6 mg kg<sup>-1</sup>, as well as 9.9 and 192.5 mg kg<sup>-1</sup>,respectively. Among the studied metals, Cd is considered as themost influential parameter for the health risk assessment oflocal clam consumers. According to this study, the daily intakeof 100 g clam flesh (wet weight) is recommended as the largestamount of clam for local consumers.
Keywords
- Heavy metals
- safe daily intake
- sediment
- white hard clam
- Meretrix lyrata
How to Cite
Viet Tuan Tran, Phuoc-Dan Nguyen, Quoc-Tuc Dinh, Huu-Viet Nguyen, Emilie Strady, and Sunghee Han, "Heavy Metal Concentrations in Hard Clam <i>Meretrix lyrata</i> and the Coastal Environment of Tien River Estuary, Mekong Delta," International Journal of Environmental Science and Development, vol. 13, no. 6, pp. 231-238, 2022. https://doi.org/10.18178/ijesd.2022.13.6.1398
Copyright & License
Copyright © 2022 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).