Heavy metals accumulation in bivalve mollusks collected from coastal areas of southeast China

Xiao-Dong Pan; Jian-Long Han

doi:10.1016/j.marpolbul.2023.114808

Heavy metals accumulation in bivalve mollusks collected from coastal areas of southeast China

Mar Pollut Bull. 2023 Apr:189:114808. doi: 10.1016/j.marpolbul.2023.114808. Epub 2023 Mar 11.

Authors

Xiao-Dong Pan¹, Jian-Long Han²

Affiliations

¹ Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
² Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China. Electronic address: jlhan@cdc.zj.cn.

PMID: 36907167
DOI: 10.1016/j.marpolbul.2023.114808

Abstract

The distribution of six heavy metal and metalloids (As, Cd, Cr, Hg, Ni and Pb) was analyzed in 597 bivalve mollusks (8 species) collected from coastal areas of southeast China. Target hazard quotient, total hazard index, and target cancer risk were calculated to evaluate potential human health risks from bivalve consumption. The mean concentrations of As, Cd, Cr, Hg, Ni and Pb were 1.83, 0.581, 0.111, 0.0117, 0.268 and 0.137 mg kg^-1 wet weight in bivalves. The average estimated daily intakes for As, Cd, Cr, Hg, Ni and Pb were 1.156, 0.367, 0.07, 0.007, 0.167 and 0.087 μg kg^-1 body weight/day. Health risk assessment showed that there was no non-carcinogenic health risk to general residents to these metals from consumption of bivalves. Cd intake through mollusks posed a potential cancer risk. Accordingly, regular monitoring for heavy metals, especially Cd is recommended with respect to potential contaminant on marine ecosystems.

Keywords: Bivalve; Exposure estimate; Health risk; Heavy metal.

MeSH terms

Animals
Bivalvia*
Cadmium
China
Ecosystem
Environmental Monitoring / methods
Humans
Lead
Mercury* / analysis
Metals, Heavy* / analysis
Neoplasms*
Risk Assessment / methods
Soil Pollutants* / analysis

Substances

Cadmium
Lead
Metals, Heavy
Mercury
Soil Pollutants