Trace elements in Anadara spp. (Mollusca: Bivalva) collected along the coast of Vietnam, with emphasis on regional differences and human health risk assessment

Abstract

This study measured concentrations of 21 trace elements in whole soft tissue of the blood cockle Anadara spp., which is a common food for local people, collected along the coast of Vietnam. Results showed that concentrations of As, Sr, Mo, Sn, and Pb in cockles collected from Khanh Hoa Province in the Central Coastal Zone (CCZ) had higher values than those from the other regions, while cockles collected from the Mekong River Delta (MRD) showed the highest concentrations of Hg. Regional differences in trace element concentrations of the cockle may be due to differences in human activities, i.e., shipyards in the CCZ and agriculture in the MRD. Trace element concentrations measured in the soft tissues of blood cockles investigated here were within safe levels for human consumption following criteria by the European Commission (EC) and the United States Food and Drug Agency, but several specimens had Cd levels exceeding the EC guidelines of 1 lg/g wet weight. The estimated target hazard quotients for trace elements via consuming bivalves were \1, indicating that the cumulative noncarcinogenic risk was completely insignificant. However, the estimated target cancer risk values by assumed inorganic As concentrations seem to implicate consumption of these cockles as posing potential human health concerns.

Biomagnification of trace elements in a benthic food web: the case study of Deer Island (Northern Yellow Sea)

“…The effects of trace elements on the marine environment and human health are of great interest today. Numerous studies have been conducted to investigate the bioaccumulation of trace elements in different marine systems [9][10][11][12][13], and generally indicated that trophodynamics of trace elements in the marine food webs was not common [14][15][16][17].…”

Asupan Aman Konsumsi Logam Cu Pada Kerang Darah dari Tempat Pelelangan Ikan Tambak Lorok, Semarang

“…Berdasarkan hasil perhitungan yang disajikan pada Tabel 3., diketahui bahwa nilai THQ pada semua sampel jaringan lunak A. granosa yang diperoleh pada 4 bulan pengambilan sampel di Perairan Tambak Lorok Semarang menunjukkan nilai di bawah 1. Hal tersebut dapat diartikan konsumsi jaringan lunak A. granosa tersebut tidak memberikan dampak non-karsinogen (Tu et al, 2011) Meskipun nilai THQ yang didapatkan dari penelitian ini masih berada di bawah batas aman, perlu diketahui bahwa logam berat Cu sebenarnya tergolong logam berat esensial yang dibutuhkan tubuh dalam berbagai proses metabolisme seperti pembentukkan zat besi yang berguna untuk meningkatkan pertumbuhan dan perkembangan pada anak, perkembangan fungsi otak, meningkatkan kekuatan tulang, dan fungsi imun (Taylor et al, 2020). Namun apabila mengkonsumsi makanan mengandung logam berat Cu secara berlebihan tentu dapat menyebabkan berbagai masalah kesehatan seperti anemia, immunotoxicity dan kerusakan pada hati dan ginjal (Sudsandee et al, 2017).…”