Haglind P, Rylander R
Department of Environmental Hygiene, University of Gothenburg, Göteborg, Sweden.
J Occup Med. 1987 Nov;29(11):904-7.
Previous studies have demonstrated that air in swine confinement buildings contains large amounts of dusts, highly contaminated with microorganisms and bacterial endotoxin. A study was undertaken to investigate the respiratory function of workers before and after the work shift in swine confinement buildings. Questionnaires were mailed to workers on swine farms. Dust levels were measured by personal sampling, and the micro-flora in the dust was determined. Work-related symptoms from the lung were frequent. Several workers who were smokers had forced expiratory volume in 1 second (FEV1) values lower than expected when they started work. Among a group of life-long nonsmoking workers the baseline forced vital capacity and FEV1 were not decreased. Changes in the FEV1 over the working shift were generally not found. It is suggested that exposure to dust in swine confinement buildings may lead to respiratory impairment but further studies on larger population samples and different exposure conditions are required.
先前的研究表明，猪舍中的空气含有大量灰尘，被微生物和细菌内毒素高度污染。一项研究旨在调查在猪舍工作前后工人的呼吸功能。问卷被邮寄给猪场工人。通过个人采样测量灰尘水平，并确定灰尘中的微生物群落。肺部与工作相关的症状很常见。几名吸烟的工人在开始工作时一秒用力呼气量（FEV1）值低于预期。在一组终生不吸烟的工人中，基线用力肺活量和FEV1没有下降。在整个工作班次中一般未发现FEV1有变化。建议接触猪舍中的灰尘可能导致呼吸功能受损，但需要对更大的人群样本和不同的暴露条件进行进一步研究。
