Nordhagen H P, Ellingsen D G, Kjuus H
Health Department, Hydro Porsgrunn, Norway.
Ann Occup Hyg. 1994 Oct;38(5):777-88. doi: 10.1093/annhyg/38.5.777.
Mercury vapour exposure was studied for 40 years in 419 chloralkali workers. The concentration of mercury was measured in the work room (stationary) from 1953 and in urine from 1948. There were major differences in the mean urinary concentrations between different types of job. The mean urinary mercury concentration, uncorrected for urinary dilution, for all subjects varied between 30 and 250 micrograms 1.(-1) during the study period. For workers in the cell-room the correlation (r) between urinary mercury and mercury in the work room was r = 0.74 (P < 0.001), and for repair men/mechanics it was r = 0.70 (P < 0.001). The introduction of new cells and stabilizing the volume of production may have been important for reducing air-Hg and U-Hg, whereas other changes in the production process, or actions to reduce the release of mercury to the work environment, had no detectable effect. The urinary mercury concentration among all workers was related to the relative energy consumption (r = 0.83, P < 0.001).
对419名氯碱工人的汞蒸气暴露情况进行了40年的研究。从1953年开始测量工作间（固定）的汞浓度，从1948年开始测量尿液中的汞浓度。不同工种之间的尿汞平均浓度存在显著差异。在研究期间，所有受试者未经尿液稀释校正的尿汞平均浓度在30至250微克/升之间变化。对于电解车间的工人，尿汞与工作间汞之间的相关性（r）为r = 0.74（P < 0.001），对于维修人员/机械师，r = 0.70（P < 0.001）。引入新电解槽和稳定产量可能对降低空气中汞和尿汞很重要，而生产过程中的其他变化或减少汞向工作环境释放的措施没有可检测到的效果。所有工人的尿汞浓度与相对能源消耗有关（r = 0.83，P < 0.001）。
