University of Ljubljana, Veterinary Faculty, Institute for Food Safety, Feed and Environment, Gerbičeva 60, 1000 Ljubljana, Slovenia.
J Food Prot. 2019 Mar;82(3):429-434. doi: 10.4315/0362-028X.JFP-18-378.
The concentrations of the trace elements zinc (Zn), arsenic (As), manganese (Mn), copper (Cu), chromium (Cr), nickel (Ni), cobalt (Co), cadmium (Cd), lead (Pb), mercury (Hg), and iron (Fe) were examined in Mediterranean blue mussels ( Mytilus galloprovincialis) from the Northern Adriatic Sea to determine whether there were site differences and seasonal variations in metal concentrations and to evaluate the potential health risks of consumption of these mussels to humans. Mussels were collected between January and October 2015 from three Slovenian shellfish harvesting areas and from a lighthouse near Debeli Rtič. The concentrations of elements were determined using inductively coupled plasma mass spectrometry. The amount of each element decreased in the following order: Fe > Zn > (As, Mn) > (Cu, Cr) > (Ni, Co) > (Cd, Pb) > Hg. Statistical analysis revealed that time, that is, the month of sampling, significantly affected the concentrations of elements in mussels ( P < 0.05). The concentrations of Cr, Mn, Fe, Ni, Hg, and Pb were highest between January and March and lowest between May and September. The concentrations of other elements in mussels were not higher or lower for several consecutive months, but occasionally (some months) lower or higher content was detected. The sampling site had a statistically significant effect only on the content of Cd, Pb, and Hg in mussels ( P < 0.05). The lowest level of these elements was found in mussels from Seča, and the highest levels of Hg and Pb were found in mussels from Debeli Rtič. Debeli Rtič is, among all sampling points, closest to the outflow of the Soča River that brings heavy metals into the Northern Adriatic Sea from a closed Hg mine. Because the concentrations of Pb, Cd, and Hg in all analyzed samples were below the maximum level permitted by Commission Regulation No 1881/2006, mussels were suitable for human consumption.
研究人员检测了产自北亚得里亚海的贻贝（Mytilus galloprovincialis）中的微量元素锌（Zn）、砷（As）、锰（Mn）、铜（Cu）、铬（Cr）、镍（Ni）、钴（Co）、镉（Cd）、铅（Pb）、汞（Hg）和铁（Fe）的浓度，以确定这些元素的浓度是否存在地点差异和季节性变化，并评估人类食用这些贻贝的潜在健康风险。贻贝是 2015 年 1 月至 10 月期间从三个斯洛文尼亚贝类养殖场和附近的灯塔采集的。使用电感耦合等离子体质谱法测定元素浓度。各元素含量按以下顺序递减：Fe > Zn > (As、Mn) > (Cu、Cr) > (Ni、Co) > (Cd、Pb) > Hg。统计分析表明，时间（采样月份）显著影响贻贝中元素的浓度（P < 0.05）。Cr、Mn、Fe、Ni、Hg 和 Pb 的浓度在 1 月至 3 月之间最高，在 5 月至 9 月之间最低。贻贝中其他元素的浓度并非连续几个月更高或更低，而是偶尔（某些月份）检测到更低或更高的含量。采样地点仅对贻贝中 Cd、Pb 和 Hg 的含量有统计学显著影响（P < 0.05）。这些元素含量最低的是来自 Seča 的贻贝，Hg 和 Pb 含量最高的是来自 Debeli Rtič 的贻贝。在所有采样点中，Debeli Rtič 离将重金属带入北亚得里亚海的 Soča 河的汞矿排放口最近。由于所有分析样品中 Pb、Cd 和 Hg 的浓度均低于委员会条例（EC）No 1881/2006 规定的最大允许浓度，因此贻贝适合人类食用。
