Department of Hydrobiology, Faculty of Fisheries, Ege University, Bornova, Izmir, 35100, Turkey,
Bull Environ Contam Toxicol. 2013 Oct;91(4):409-14. doi: 10.1007/s00128-013-1051-2. Epub 2013 Jul 10.
This study compared the levels of the trace metals zinc (Zn), cadmium (Cd), lead (Pb) and copper (Cu) in the bivalve Lithophaga lithophaga from Izmir Bay (Aegean Sea) between 2001 and 2011. Comparisons were made on the basis of season, as well as year. All values were measured by voltammetry. Median values of trace metals for all seasons in 2011 were 244.67 μg Zn g(-1), 1.09 μg Cd g(-1), 7.64 μg Pb g(-1) and 56.03 μg Cu g(-1) as dry weight. The results showed a general trend of decreasing Zn, Pb and Cu concentrations over time, but an increasing trend for Cd. Mean trace metal concentrations in individuals of L. lithophaga in 2011 exceeded the permissible limit published in the Turkish Food Codex for Pb, and closely approached the limit for Zn. The mean Cd concentration was within the permissible limit of the Turkish Food Codex, but exceeded the limit of the World Health Organization. Levels of Cu were within permissible limits of published regulations.
本研究比较了 2001 年至 2011 年间爱琴海伊兹密尔湾贻贝 Lithophaga lithophaga 中痕量金属锌 (Zn)、镉 (Cd)、铅 (Pb) 和铜 (Cu) 的水平。比较的基础是季节和年份。所有值均通过伏安法测量。2011 年所有季节痕量金属的中位数分别为 244.67μg Zn g(-1)、1.09μg Cd g(-1)、7.64μg Pb g(-1)和 56.03μg Cu g(-1)，均为干重。结果表明，随着时间的推移，Zn、Pb 和 Cu 的浓度呈总体下降趋势，但 Cd 的浓度呈上升趋势。2011 年 L. lithophaga 个体的平均痕量金属浓度超过了土耳其食品法典公布的 Pb 允许限量，且接近 Zn 的限量。Cd 的平均浓度在土耳其食品法典的允许限量范围内，但超过了世界卫生组织的限量。Cu 的含量在公布法规的允许限量范围内。
