Hagberg M, Kolmodin-Hedman B, Lindahl R, Nilsson C A, Norström A
Eur J Respir Dis. 1985 Apr;66(4):240-7.
Complaints of irritation in the eyes, nose and throat as well as dyspnea during work prompted this study to determine whether chain-saw exhaust produces acute exposure effects in loggers. Interviews concerning respiratory symptoms and rating of complaints were conducted for 211 loggers at industrial health care centers. Measurements of carboxyhemoglobin, spirometry and exposure to hydrocarbons, carbon monoxide and aldehydes were assessed for 23 loggers over 36 work periods lasting 2 h each. The prevalence of chronic bronchitis among the 211 loggers was 6%. Irritative complaints of eyes, nose and throat were common and significantly higher than in a reference group. The exposure levels were all below established threshold limit levels, except for carbon monoxide. There was a significant correlation between carbon monoxide exposure and blood carboxyhemoglobin levels. A small but significant decrease of FEV1% and FEF 25-75% during the work periods indicated minimal broncho-constriction, possibly mediated through a reflex mechanism due to irritation of upper airways.
工作期间出现的眼睛、鼻子和喉咙刺激症状以及呼吸困难促使开展本研究，以确定链锯废气是否会对伐木工产生急性暴露影响。在工业保健中心对211名伐木工进行了有关呼吸道症状的访谈以及投诉评级。对23名伐木工在36个每次持续2小时的工作时段内的碳氧血红蛋白、肺功能测定以及碳氢化合物、一氧化碳和醛类暴露情况进行了评估。211名伐木工中慢性支气管炎的患病率为6%。眼睛、鼻子和喉咙的刺激性投诉很常见，且显著高于对照组。除一氧化碳外，所有暴露水平均低于既定的阈限值。一氧化碳暴露与血液碳氧血红蛋白水平之间存在显著相关性。工作时段内第一秒用力呼气容积百分比（FEV1%）和用力呼气中期流速（FEF 25-75%）有小幅但显著的下降，表明存在轻微的支气管收缩，可能是由于上呼吸道受刺激通过反射机制介导的。
