梁辉,刘志婷,周少君,陈子慧,龙朝阳,王萍,胡曙光,邓小玲.广东省居民贝类水产品中镉暴露的风险评估[J].中国食品卫生杂志,2017,29(4):492-495. 本文二维码信息
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广东省居民贝类水产品中镉暴露的风险评估
Risk assessment of cadmium exposure in shellfish in Guangdong Province
投稿时间:2017-07-08  
DOI:
中文关键词:  贝类  水产品  重金属    暴露  风险评估  广东
Key Words:Shellfish  aquatic product  heavy metals  cadmium  exposure  risk assessment  Guangdong
基金项目:广东省医学科研基金课题项目(A2014080);2015年省公益研究与能力建设专项资金项目(2015A020218002)
作者单位E-mail
梁辉 广东省疾病预防控制中心,广东 广州 511430 13925034528@139.com 
刘志婷 广东省疾病预防控制中心,广东 广州 511430  
周少君 广东省疾病预防控制中心,广东 广州 511430  
陈子慧 广东省公共卫生研究院,广东 广州 511430  
龙朝阳 广东省疾病预防控制中心,广东 广州 511430  
王萍 广东省公共卫生研究院,广东 广州 511430  
胡曙光 广东省疾病预防控制中心,广东 广州 511430  
邓小玲 广东省疾病预防控制中心,广东 广州 511430 13925034528@139.com 
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中文摘要:
      目的 了解广东省贝类水产品中镉污染状况及居民对贝类水产品的消费情况,并对食用贝类水产品中镉暴露进行风险评估。方法 采用随机抽样方法,在广东省的粤东、粤西和珠三角地区采集贝类水产品样品307份,监测其镉含量,并结合广东省居民贝类水产品消费量数据,采用点评估模型评价广东省居民贝类水产品中镉暴露风险。结果 本次研究共检测307份样品,贝类水产品中镉总超标率为23.8%(73/307),中位数含量为0.630 mg/kg;粤东、粤西和珠三角地区的镉超标率分别为19.4%(13/67)、23.5%(16/68)及25.6%(44/172),中位数含量依次为0.530、0.806及0.853 mg/kg,差异无统计学意义(χ2=0.94,P>0.05)。人群摄入贝类水产品中镉的平均暴露量为0.957 μg/d,高消费人群的暴露量为4.511 μg/d;分别占暂定每月可耐受摄入量(PTMI)的1.91%和9.02%。结论 广东省贝类水产品中镉含量存在一定程度的超标情况,但人群摄入贝类中镉暴露风险相对较低。
Abstract:
      Objective To investigate the content of cadmium in shellfish in Guangdong Province and make dietary exposure assessment of cadmium in shellfish. Methods The shellfish samples were collected from Pearl River Delta, Eastern and Western Guangdong Province using random sampling method. Point assessment method was used to evaluate the exposure of dietary cadmium intake from shellfish. The risk of dietary cadmium exposure from shellfish were evaluated. Results Three hundred and seven samples were included in the analysis. The median concentration of cadmium in shellfish was 0.630 mg/kg and the exceeding standard rate was 23.8% (73/307). The exceeding standard rates in Eastern Guangdong, Western Guangdong and Pearl River Delta were 19.4% (13/67), 23.5% (16/68), and 25.6% (44/172), respectively. The corresponding median concentration of cadmium were 0.530,0.806 and 0.853 mg/kg, and the difference was not statistically significant (χ2=0.94, P>0.05). The average (P50) and high level (P97.5) daily intake of cadmium from shellfish by the total survey population was 0.957 μg/d, and 4.511 μg/d, respectively. The monthly intake of cadmium associated with shellfish calculated from average and P97.5 exposure doses accounted for 1.91% and 9.02% of PTMI, respectively. Conclusion The cadmium content of some shellfish in Guangdong Province exceeded the standard. However, the cadmium intake from shellfish by the survey population was not high.
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