| 摘要: |
| 为了解广西沿海养殖的牡蛎体内Pb含量水平及污染危害情况,于2006年7~10月对广西沿海养殖的近江牡蛎(Crassostrea rivularis)进行抽样检测,共采集牡蛎样品14批次,各采样点采2~3龄牡蛎20只。结果表明,全部样品均检出含有Pb,含量为0.08~2.3mg/kg,全部样品含Pb的平均值为1.2mg/kg;有9批次样品Pb含量(>1.0mg/kg)超过国家《无公害食品近江牡蛎》的限定标准,超标率为64.3%。基于养殖贝类在人们总膳食结构中所占比例很小,参考国外相关做法,建议我国牡蛎等贝类产品卫生质量标准应以养殖贝类产品中大肠菌群数值作为划型标准,以铅、铜、镉等重金属作为海水贝类养殖生产区的监控指标进行监测,并结合环境因素(水质、底质等)监测结果,评价贝类养殖区环境质量状况以及产品质量状况,这更符合生产及消费的客观情况。 |
| 关键词: 牡蛎 铅 标准 |
| DOI： |
| 投稿时间：2007-04-05修订日期：2007-05-14 |
| 基金项目: |
|
| Concentrations and Standard Evaluation of Pb in the Oysters from Guangxi Coastlines |
|
LI Xiao-zheng, LAN Liu-chun
|
| (Fisheries Research Institute of Guangxi, Nanning, Guangxi, 530021, China) |
| Abstract: |
| In order to understand Pb concentrations contained in oysters and the pollution conditions in Guangxi coastines,the oysters are sampled for test during July and October of 2006.The result shows that the Pb concentrations in the tested oyster ranges from 0.08 to 2.3mg/kg with an overall average of 1.2mg/kg.There are 9 batchs of samples whose Pb concentrations(>1.0mg/kg) overtop that of the state standard.The rate is 64.3%.Based on the small proportion of mussel food in people's diet,and the reference to correlative practices abroad,the article suggests that the sanitation quality standards of mussels should be compartmentalized with the amount of coliform group as a standard,and the ores like lead,copper,cadmium be taken as the index of monitoring in mussels aquaculture production area,and the environmental quality and product quality be evaluated by integrating the results of monitoring environmental factors(water,sediment,etc.). |
| Key words: oyster lead standard |
