Biological risk assessment of heavy metals in sediments and health risk assessment in bivalve mollusks from Kaozhouyang Bay, South China.

Abstract:

:The concentrations of heavy metals (Cd, Pb, Cr, Ni, Cu, Zn, Hg and As) in surface sediments and bivalve mollusks in Kaozhouyang Bay were investigated. A biological risk analysis of the sediments indicated that ten sites (about 76.92% of the total number of sites) had a 21% incidence probability of toxicity. A health risk analysis of the bivalve mollusks indicated that Cu and As posed low risks to consumer health. On the basis of the target hazard quotient (THQ), adverse effects may occur based on total THQ (TTHQ). The highest TTHQ was found in the species, Ostrea rivularis, which had the highest capacity for the bioaccumulation (factor > 38) of Cd.

journal_name

Mar Pollut Bull

authors

Wang XN,Gu YG,Wang ZH,Ke CL,Mo MS

doi

10.1016/j.marpolbul.2018.05.059

subject

Has Abstract

pub_date

2018-08-01 00:00:00

pages

312-319

eissn

0025-326X

issn

1879-3363

pii

S0025-326X(18)30388-6

journal_volume

133

pub_type

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