TY - JOUR
T1 - Presence of arsenic, mercury and vanadium in aquatic organisms of Laizhou Bay and their potential health risk
AU - Liu, Yuan
AU - Liu, Guijian
AU - Yuan, Zijiao
AU - Liu, Houqi
AU - Lam, Paul K.S.
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/12/15
Y1 - 2017/12/15
N2 - This study aims at describing and interpreting concentrations of arsenic (As), mercury (Hg) and vanadium (V) in seven species of fish, three species of shellfish, one species of crab and two species of shrimp from the typical estuary-bay ecosystem. Arsenic, Hg and V differed among species, and the highest As, Hg and V were observed in shellfish. The stable nitrogen (δ15N) and carbon (δ13C) isotopes were determined to investigate the trophic interactions between fluctuating environment and aquatic species. Arsenic concentrations in samples were found negatively correlated with δ15N, implying biodilution effect of As through the food web, while Hg concentrations in samples were positively correlated with δ15N, indicating their biomagnification effect. The estimated daily intake values of Hg and V in this study were all below the oral reference dose. However, elevated As intakes of some aquatic organisms suggested a potential risk for frequent consumers.
AB - This study aims at describing and interpreting concentrations of arsenic (As), mercury (Hg) and vanadium (V) in seven species of fish, three species of shellfish, one species of crab and two species of shrimp from the typical estuary-bay ecosystem. Arsenic, Hg and V differed among species, and the highest As, Hg and V were observed in shellfish. The stable nitrogen (δ15N) and carbon (δ13C) isotopes were determined to investigate the trophic interactions between fluctuating environment and aquatic species. Arsenic concentrations in samples were found negatively correlated with δ15N, implying biodilution effect of As through the food web, while Hg concentrations in samples were positively correlated with δ15N, indicating their biomagnification effect. The estimated daily intake values of Hg and V in this study were all below the oral reference dose. However, elevated As intakes of some aquatic organisms suggested a potential risk for frequent consumers.
KW - Aquatic organism
KW - Laizhou Bay
KW - Stable isotope ratios
KW - Trace elements
UR - https://www.scopus.com/pages/publications/85030027326
U2 - 10.1016/j.marpolbul.2017.09.045
DO - 10.1016/j.marpolbul.2017.09.045
M3 - Article
C2 - 28967412
AN - SCOPUS:85030027326
SN - 0025-326X
VL - 125
SP - 334
EP - 340
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
IS - 1-2
ER -
