Department of Occupational and Environmental Medicine, Faculty of Science, Örebro University, Örebro, Sweden (Dr Westberg, Bryngelsson); Center for Occupational Biostatistics and Epidemiology, Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania (Dr Marsh, Dr Buchanich, Zimmerman); Division of Environmental and Occupational Health Sciences, School of Public Health, University of Illinois at Chicago, Chicago, Illinois (Drs Kennedy, Esmen); and Department of Medical Science, Occupational and Environmental Medicine, Uppsala University, Uppsala, Sweden (Dr Svartengren).
J Occup Environ Med. 2017 Dec;59(12):e327-e341. doi: 10.1097/JOM.0000000000001147.
Mortality pattern was determined in a cohort of 16,999 white and blue-collar workers in the Swedish hardmetal industry. Exposure assessment for cobalt is presented.
A historical database (1970 to 2012) of personal and area measurements of cobalt, tungsten, and nickel in the Swedish hardmetal industry was created. Log linear and exponential modeling of cobalt concentrations based on time period, job, and site was performed, and cumulative and mean exposures were calculated.
Some 37% of the personal cobalt measurements exceeded 0.02 mg/m, mostly for powder production, pressing, and shaping. The log linear regression showed statistical differences (P < 0.05) between sites, time periods, and jobs. Some 1.6% of the cobalt cumulative exposures for blue-collar workers exceeded 0.4 mg/m years.
Low levels of cumulative and mean exposures were determined.
对 16999 名瑞典硬金属行业的白人和蓝领工人进行了队列研究，确定了死亡率模式。现呈现钴的暴露评估。
创建了瑞典硬金属行业个人和区域钴、钨和镍测量的历史数据库（1970 年至 2012 年）。根据时间段、工作和地点对钴浓度进行对数线性和指数建模，并计算累积和平均暴露量。
约 37%的个人钴测量值超过 0.02mg/m，主要来自粉末生产、压制和成型。对数线性回归显示出地点、时间段和工作之间的统计学差异（P<0.05）。约 1.6%的蓝领工人钴累积暴露量超过 0.4mg/m 年。
确定了低水平的累积和平均暴露量。
