Yang C Y, Huang C C, Chiu H F, Chiu J F, Lan S J, Ko Y C
School of Public Health, Kaohsiung Medical College, Taiwan.
J Toxicol Environ Health. 1996 Dec 27;49(6):581-8.
The object of this study was to assess the relationship between occupational Portland cement dust exposure and respiratory health. Respiratory symptoms and ventilatory function were studied in a group of 591 male Portland cement workers employed in four cement plants. The prevalence of chronic respiratory symptoms was higher in exposed than in control workers. The exposed group had a significantly lower mean forced vital capacity (FVC), forced expiratory volume at 1 s (FEV1), and forced expiratory flows after exhalation of 50% and 75% of the vital capacity (FEF50, FEF75) than the control group. The data suggest that occupational exposure to Portland cement dust may lead to higher prevalence of chronic respiratory symptoms and the reduction of ventilatory capacity.
本研究的目的是评估职业性接触波特兰水泥粉尘与呼吸健康之间的关系。对四家水泥厂雇佣的591名男性波特兰水泥工人进行了呼吸症状和通气功能研究。暴露组慢性呼吸症状的患病率高于对照组工人。与对照组相比，暴露组的平均用力肺活量（FVC）、第1秒用力呼气量（FEV1）以及呼出肺活量的50%和75%后的用力呼气流量（FEF50、FEF75）显著更低。数据表明，职业性接触波特兰水泥粉尘可能导致慢性呼吸症状的患病率更高以及通气能力下降。
