Organic dust exposures from work in dairy barns
Organic dust exposures from work in dairy barns
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DOI：
10.1080/15428119891010668
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发表时间：
1998-06-01
期刊：
影响因子：
--
通讯作者：
Merchant, JA
中科院分区：
文献类型：
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作者：
Kullman, GJ;Thorne, PS;Merchant, JA
在威斯康星州中部的85个谷仓中进行了环境调查，主要是奶牛场，以表征常规谷仓工作中有机粉尘和粉尘成分的暴露。环境分析物包括气载粉尘（总量、可吸入入口和可吸入）、粒度分布、内毒素、总孢子和细菌计数、活细菌和真菌、组胺、牛尿抗原、螨抗原、氨、二氧化碳和硫化氢。气载粉尘的几何平均浓度包括：区域总浓度，0.74 mg/m3;个人可吸入入口浓度，1.78 mg/m3;区域可吸入浓度，0.07 mg/m3。活细菌和真菌，孢子，内毒素，组胺，牛尿抗原，螨抗原是这些有机粉尘和潜在的呼吸道接触危害从日常奶牛场工作的可量化的成分。可吸入入口样品的内毒素浓度范围为25.4内毒素单位/立方米空气（EU/m3）至34，800 EU/m3。这些样本中的转基因内毒素浓度为647 EU/m3，超过了对呼吸系统健康影响的估计阈值暴露水平。氨是一种常见的刺激物，在大多数奶牛场量化。有机粉尘的浓度和某些粉尘成分之间有显着的相关性，但在大多数情况下，这些相关性并不强。这些采样结果证明了有机粉尘的复杂性，并提供了定量描述的接触有毒和免疫原性粉尘成分在日常谷仓工作。
Environmental surveys were conducted in 85 barns, predominantly dairy, in central Wisconsin to characterize exposures to organic dusts and dust constituents from routine barn work. Environmental analytes included airborne dusts (total, inhalable inlet, and respirable), particle size distributions, endotoxins, total spore and bacteria counts, viable bacteria and fungi, histamine, cow urine antigen, mite antigen, ammonia, carbon dioxide, and hydrogen sulfide. The geometric mean (GM) concentration of airborne dusts include area total, 0.74 mg/m(3); personal inhalable inlet, 1.78 mg/m(3); and area respirable, 0.07 mg/m(3). Viable bacteria and fungi, spores, endotoxins, histamine, cow urine antigen, and mite antigen were quantifiable constituents of these organic dusts and potential respiratory exposure hazards from routine dairy barn work. Endotoxin concentrations from the inhalable inlet samples ranged from 25.4 endotoxin units per cubic meter of air (EU/m(3)) to 34,800 EU/m(3). The GM endotoxin concentration from these samples, 647 EU/m(3), exceeds estimated threshold exposure levels for respiratory health effects. Ammonia was a common irritant quantified in most dairy barns. There were significant correlations between the concentrations of organic dusts and certain dust constituents, although in most instances these correlations were not strong. These sampling results demonstrate the complex nature of organic dusts and provide quantitative description of the exposures to toxic and immunogenic dust constituents during routine barn work.