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首页> 外文期刊>Occupational and environmental medicine >Does the use of biofuels affect respiratory health among male Danish energy plant workers?
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Does the use of biofuels affect respiratory health among male Danish energy plant workers?

机译：使用生物燃料是否会影响丹麦男性发电厂工人的呼吸系统健康？

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OBJECTIVES: To study asthma, respiratory symptoms and lung function among energy plant employees working with woodchip, straw or conventional fuel. METHODS: Respiratory symptoms in 138 woodchip workers, 94 straw workers and 107 control workers from 85 heating- or combined heating and power plants were collected by questionnaire. Spirometry, metacholine provocation tests and skin prick tests were performed on 310 workers. The work area concentrations of 'total dust' (n=181), airborne endotoxin (n=179), cultivable Aspergillus fumigatus (n=373) and cultivable fungi (n=406) were measured at each plant. Personal exposure was calculated from the time spent on different tasks and average work area exposures. RESULTS: Median (range) average personal exposures in biofuel plants were 0.05 (0 to 0.33) mg/m(3) for 'total' dust and 3.5 (0 to 294) endotoxin units/m(3) for endotoxin. Fungi were cultivated from filters (straw plants) or slit samplers (woodchip plants); the average personal exposures were 5.230x10(3) (118 to 1.85x10) and 1.03x10(3) (364 to 5.01x10(3)) colony-forming units/m(3) respectively. Exposure levels were increased in biofuel plants compared with conventional plants. The prevalence of respiratory symptoms among conventional plant and biofuel plant workers was comparable, except for asthma symptoms among non-smokers, which were higher among straw workers compared with controls (9.4 vs 0%, p<0.05). A trend for increasing respiratory symptoms with increasing endotoxin exposure was seen with ORs between 3.1 (1.1 to 8.8) (work-related nose symptoms) and 8.1 (1.5 to 44.4) (asthma symptoms) for the most exposed group. Associations between fungal exposure and respiratory symptoms were less clear but suggested cultivable fungi to be associated with asthma symptoms and work-related respiratory symptoms. No associations were seen between lung function and the level of endotoxin or fungal exposure. CONCLUSIONS: Working with biofuel at an energy plant does not generally enhance the prevalence of respiratory symptoms. However, the exposure level to micro-organisms has an impact on the occurrence of respiratory symptoms among biofuel workers.
机译：目的：研究使用木屑，秸秆或常规燃料的能源工厂员工的哮喘，呼吸道症状和肺功能。方法：通过问卷调查收集了来自85家供热或联合供热和发电厂的138名木片工人，94名稻草工人和107名对照工人的呼吸道症状。对310名工人进行了肺活量测定，甲胎蛋白激发试验和皮肤点刺试验。在每棵植物上测量“总粉尘”（n = 181），空气中内毒素（n = 179），可培养的烟曲霉（n = 373）和可培养的真菌（n = 406）的工作区域浓度。个人暴露是根据在不同任务上花费的时间和平均工作区暴露量计算得出的。结果：在生物燃料工厂中，“总”粉尘的平均个人（范围）平均暴露量为0.05（0至0.33）mg / m（3），内毒素的平均暴露量为3.5（0至294）内毒素单位/ m（3）。真菌是从过滤器（秸秆植物）或狭缝取样器（木片植物）中种植的;平均个人暴露量分别为5.230x10（3）（118至1.85x10）和1.03x10（3）（364至5.01x10（3））集落形成单位/ m（3）。与传统工厂相比，生物燃料工厂的暴露水平有所提高。除了非吸烟者的哮喘症状外，传统工厂和生物燃料工厂工人的呼吸道症状患病率是可比的，非吸烟者的哮喘症状比对照组高（9.4％vs 0％，p <0.05）。对于暴露最严重的组，OR值在3.1（1.1至8.8）（与工作有关的鼻子症状）和8.1（1.5至44.4）（哮喘症状）之间观察到随着内毒素暴露增加而呼吸症状增加的趋势。真菌暴露与呼吸道症状之间的关联尚不清楚，但建议可培养的真菌与哮喘症状和与工作有关的呼吸道症状有关。肺功能与内毒素或真菌暴露水平之间没有关联。结论：在能源工厂使用生物燃料通常不会提高呼吸道症状的患病率。但是，微生物的暴露水平对生物燃料工作者中呼吸道症状的发生有影响。

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