台州市椒江区水产品重金属含量及食用风险

Heavy metal content and food risk of aquatic organisms in Jiaojiang district of Taizhou city

中文关键词:  水产品  重金属  检测  评价

英文关键词:aquatic organisms  heavy metals  detection  appraise

中文摘要:

      目的 研究台州椒江区近海海域捕获的不同种类的水产品的重金属含量及食用的安全性。方法 采用国家铅、镉的标准检测技术, 选用石墨炉原子吸收光谱法, 对采集的186批次水产品样品进行检测分析。 结果 双壳类水产品中的重金属污染指数明显高于其他类水产品, 为0.2365; 鱼类和甲壳类水产品中的重金属污染指数较低。在4类水产品中, 品种间的铅的差异性不明显; 镉则差异明显, 头足类和双壳类水产品镉最高。结论 双壳类容易受铅、镉这2类重金属污染, 应加强对双壳类的重金属含量的监测。从单因子污染指数及均值型污染指数来看, 4种水产品污染的程度较为轻微, 可以放心食用, 但建议消费者穿插食用多种类水产品。

英文摘要:

      Objective To study the heavy metal content and food safety of different types of aquatic products captured in the offshore waters of Jiaojiang district, Taizhou. Methods Using the national lead and cadmium standard detection technology, the graphite furnace atomic absorption spectrometry was used to detect and analyze the collected 186 batches of aquatic products. Results The heavy metal pollution index in bivalve aquatic products was significantly higher than other aquatic products, which was 0.2365. The heavy metal pollution index in fish and crustacean aquatic products was low. Among the 4 types of aquatic products, the difference in lead between the varieties was not obvious. The difference in cadmium was obvious, and the cadmium in the cephalopod and bivalve aquatic products was the highest. Conclusion Bivalve aquatic products is easily contaminated by heavy metals such as lead and cadmium, and the monitoring of heavy metal content in bivalves should be strengthened. From the single-factor pollution index and the average pollution index, the pollution levels of 4 aquatic products are relatively mild and can be safely consumed. However, consumers are advised to intersperse with a variety of aquatic products.