Terzi R, Marcaletti G, Catenacci G
Boll Soc Ital Biol Sper. 1984 Dec 30;60(12):2333-7.
The authors study the statistical distribution and the graphical representation of the urinary chromium values investigated during three consecutive years in three work environments of a same plant: polishing 1 degree, electrotyping, polishing 2 degrees, to evaluate the environmental situations of exposure and their variations. The adopted method, based on the graphical representation of the values in logarithmic coordinate paper, allows to quickly and carefully calculate the percent of the workers having urinary chromium values above the prefixed limits.
作者研究了在同一工厂的三个工作环境（一级抛光、电镀、二级抛光）中连续三年所检测的尿铬值的统计分布及图形表示，以评估暴露的环境状况及其变化。所采用的方法基于在对数坐标纸上对数值进行图形表示，能够快速且准确地计算出尿铬值高于预定限值的工人百分比。
