Donham K J, Popendorf W J
Am Ind Hyg Assoc J. 1985 Nov;46(11):658-61. doi: 10.1080/15298668591395490.
To assess potential worker health hazards, the air in confinement structures on 21 randomly selected swine producing farms in Iowa was evaluated for selected gases. The gases measured (mean concentration) included ammonia (34 ppm), hydrogen sulfide (1.4 ppm), carbon monoxide (9.1 ppm) and carbon dioxide (1640 ppm). Ammonia (compared to other gases) most commonly exceeded the Threshold Limit Value (TLV); however, it was common to find buildings with several gases in excess of the TLV. Buildings housing younger animals were more likely to have hazardous gas levels than buildings housing older animals. This complex mixture of gases represents a potential health hazard to an estimated 400,000 individuals who work in swine confinement buildings. These data suggest that research is needed to control these exposures affecting a large number of workers.
为评估潜在的工人健康危害，对爱荷华州21个随机选取的养猪场密闭建筑内的空气进行了特定气体评估。所测量的气体（平均浓度）包括氨气（34 ppm）、硫化氢（1.4 ppm）、一氧化碳（9.1 ppm）和二氧化碳（1640 ppm）。氨气（与其他气体相比）最常超过阈限值（TLV）；然而，常见的情况是发现有几种气体超过TLV的建筑。饲养幼龄动物的建筑比饲养老龄动物的建筑更有可能存在有害气体水平。这种复杂的气体混合物对估计40万名在猪舍工作的人员构成潜在健康危害。这些数据表明需要开展研究来控制影响大量工人的这些暴露情况。
