Auermann E, Börtitz S
Nahrung. 1977;21(9):793-7.
To assess the contamination of fruit and vegetables by lead-containing road dust, products displayed in the open air and in retail shops, respectively, were analysed for lead content. The lead exposure within the range of the retail shop was characterized by an aerosol with 0.2-2.5 microgram/m3 and a sedimentable lead dust of 2.13-6.55 mg/m2-30 d. The lead content of the products displayed in the open air was some 0.5 to 6-fold higher. This difference was statistically significant. 92-100% of the lead dust could be removed from the products by washing with water. Increased lead contents were also found on fruit stored in a cellar (0.66 and 0.42 p.p.m., respectively) near a parking place. In consideration of the proportion of these foods in the diet consumed, no health hazard to the population can be deduced from these data; but in single cases, a temporary rise of the blood-lead level may occur. Covering fruit and vegetables presented in the open air with thin-sheet plastics or selling such products in plastics bags will prevent contamination.
为评估含铅道路灰尘对水果和蔬菜的污染情况，分别对露天摆放和零售店内展示的产品进行了铅含量分析。零售店内的铅暴露特征为：空气中铅含量为0.2 - 2.5微克/立方米，可沉降铅尘为2.13 - 6.55毫克/平方米 - 30天。露天摆放的产品铅含量约高出0.5至6倍。这一差异具有统计学意义。用水清洗可去除产品上92 - 100%的铅尘。在靠近停车场的地窖中储存的水果上也发现铅含量增加（分别为0.66和0.42 ppm）。考虑到这些食物在日常饮食中的占比，从这些数据中无法推断出对人群有健康危害；但在个别情况下，可能会导致血铅水平暂时升高。用薄塑料片覆盖露天摆放的水果和蔬菜或用塑料袋销售此类产品可防止污染。
