青岛近海主要海捕水产品中金属元素与石油烃含量分析

Determination and analysis of elements and petroleum hydrocarbon in seafood caught from Qingdao coastal waters

中文关键词:  捕捞水产品  重金属  稀土元素  石油烃

英文关键词:fishing seafood  heavy metal  rare earth element  petroleum hydrocarbon

中文摘要:

      目的 对青岛近海主要海捕水产品开展质量安全与营养评价研究, 掌握捕捞水产品的食用安全现状。方法 全面分析青岛近海海域主要捕捞水产品中常量元素、微量元素、稀土元素以及石油烃的含量, 并进行食用安全评价分析。结果 研究表明青岛近海海域水产品中含有丰富的人体必需元素, 是补充人体矿物质营养的良好膳食来源。稀土元素总含量为6.08~232 μg/kg, 且甲壳类高于鱼类。水产品中鱼类的有害微量元素及石油烃含量均符合我国水产品有毒有害物质限量标准, 但甲壳类中梭子蟹和虾蛄的镉(Cd)和少数样品中石油烃含量存在超标情况。结论 亟需进一步加强水产品中有害元素的形态分析研究, 科学开展风险评估。

英文摘要:

      Objective To investigate the safety and nutrition of seafood caught from Qingdao coastal waters through a systematic determination and analysis. Methods The concentrations of heavy metals, rare earth elements (REEs) and petroleum hydrocarbon in seafood caught from Qingdao coastal waters were determined and systematically analyzed, and the safety assessment was also conducted. Results The results showed that seafood were enriched with beneficial macro elements and trace elements, and they could be regarded as good sources of dietary supplementing of the minerals and nutrition. The total content of rare earth elements ranged from 6.02 to 232.27 μg/kg, and was higher in crustaceans than in fish. The results also found that the contents of heavy metals and petroleum hydrocarbon in fish were far below the standard limits, while the concentrations of Cd and petroleum hydrocarbon in some samples of Portunus trituberculatus and Oratosquilla oratoria exceeded the standard limits. Conclusion The speciation analysis of harmful elements in seafood is needed for a more accurate risk assessment.