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对上海市郊两个县的１０家蓄电池厂和１家铅冶炼厂调查发现，５１个作业点的２３９个空气铅样品的几何平均浓度为０．０４２ｍｇ／ｍ３，作业点和样品的超标率分别为５０．９８％和５４．３９％；１９６名铅作业工人的几何平均血铅、ＺＰＰ水平分别为１．６８μｍｏｌ／Ｌ和２．６７μｍｏｌ／Ｌ，均显著高于对照厂工人。研究还发现，在血铅水平为１．６８μｍｏｌ／Ｌ时，铅接触工人的神经、消化、肌肉关节系统的症状改变，与对照工人比较差异具有显著意义。多元逐步回归分析发现，影响铅接触工人血铅水平的主要因素是卫生习惯。
A survey of 10 battery factories and 1 lead smelter in two suburb counties in Shanghai found that the geometric mean concentration of 239 air lead samples at 51 operation points was 0.042 mg / m3, and the over-standard rates of operation points and samples were 50.98% and 54.39%, respectively. The geometric mean blood lead and ZPP levels of 196 lead workers were 1.68μmol / L and 2.67μmol / L, respectively, which were significantly higher than those of control workers. The study also found that when the blood lead level was 1.68μmol / L, the lead, exposed workers’ neurological, digestive and muscular joint symptoms changed significantly compared with the control workers. Multivariate stepwise regression analysis found that the main factor affecting the level of lead in lead exposed workers was hygiene.