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目的 检测深圳市售食品的铅含量及铅超标现状 ,调查深圳居民食品消费习惯与摄入铅的联系 ,研究用污染物综合指数 (ComprehensivePollutantIndex ,CPI)评估食品污染物对居民身体健康的影响程度。方法 检测深圳市1 999～ 2 0 0 1年 8类 2 81 5份市售食品的铅含量 ,各类食品的铅超标率。随机调查 532名居民的食物构成 ,建立CPI评估居民食物构成与食品铅污染的内在联系。结果 8类食品中 ,平均铅超标率为 1 39% ,各类食品铅超标率在0 1 9%～ 6 50 %之间。铅的CPI在 0 1 5～ 3 77之间 ,铅超标率高并且居民食用频次高的食品CPI数值大 ,超标率低的居民食用频次低的食品CPI数值小。结论 深圳市售食品存在一定程度的铅污染。CPI能够有效地评估食品污染物对居民身体健康的影响程度
Objective To test the status of lead content and excessive lead in Shenzhen foodstuffs. To investigate the relationship between food consumption habits and lead intake in Shenzhen. The Comprehensive Poll Index (CPI) was used to evaluate the influence of food contaminants on residents’ health. Methods The lead content of 2 81 5 commercial products in 8 categories in Shenzhen from 1999 to 2001 was tested, and the lead exceeded the standard of all kinds of food. A random survey of the food composition of 532 residents, the establishment of CPI assessment of residents of food composition and the inherent linkages of lead contamination of foodstuffs. Results Among the 8 types of food, the average lead exceeded 1 39% and the lead exceeded 0 1 9% ~ 6 50%. The CPI of lead was between 0 1 5 and 3 77, the CPI value of food with high lead over standard rate and high household consumption frequency was large, and the food CPI value of low food consumption rate of residents with low over standard rate was small. Conclusion There is a certain degree of lead pollution in Shenzhen food for sale. CPI can effectively assess the impact of food contaminants on the health of residents