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为分析本地儿童血铅水平与食品及生活环境中铅的相关性 ,探讨降低铅污染因素对儿童身体健康影响的方法 ,随机抽检了深圳市 2 0 0 0～ 2 0 0 1年 6大类 1 5 68份市售食品的铅含量 ,测定了本市 83 4名 1～ 6岁儿童的血铅含量 ,调查了 61 1名儿童食物与生活环境中的铅影响因素。结果表明 ,6大类共 1 5 68份食品中 ,共有 1 8份食品超标 ,超标率为 1 1 5 %。 83 4名儿童血铅范围在 2 2 0～ 1 97 4μg L之间 ,均数是 90 6μg L ,其中≥ 1 0 0 μg L的为 3 1 7人 ,占 3 8 0 1 %。对儿童使用的玩具、生活卫生习惯、食物结构、家庭和幼儿园生活环境等进行多元逐步回归法分析各种可能的铅污染因素 ,证实食品及儿童生活环境中铅污染与儿童血铅超标有关。揭示深圳儿童血铅含量超标与食品铅污染以及儿童生活环境中的手 -口途径存在密切联系。
In order to analyze the correlation between local blood lead levels and lead in food and living environment and to explore ways to reduce the impact of lead pollution on children’s health, random sampling was conducted in 6 major categories of Shenzhen 1 0 0 ~ 2 0 1 The blood lead levels of 83 4 children aged 1 ~ 6 in our city were measured and the influencing factors of lead in food and living environment of 61 1 children were investigated. The results showed that out of a total of 1 68 foodstuffs in 6 major categories, a total of 18 food products exceeded the standard, with an exceeding standard rate of 11.5%. The blood lead levels of 4 children ranged from 220 to 1 97 4 μg L, with a mean of 90 6 μg L, of which 317 were ≥ 100 μg L, accounting for 38.01%. Multiple stepwise regression analysis of various possible lead contamination factors on toys used by children, life hygiene habits, food structure, living environment in families and kindergartens confirmed that the lead pollution in food and children’s living environment was related to excessive blood lead in children. Revealed that Shenzhen children’s blood lead levels exceeded the lead contamination of food and children’s living environment in the mouth-mouth approach is closely linked.