Kawada T, Shinmyo R R, Suzuki S
Ind Health. 1993;31(4):165-70. doi: 10.2486/indhealth.31.165.
Urinary Cadmium (Cd) levels were measured twice a year from 1986 to 1992 in five workers exposed to cadmium pigment dust. At the end of 1987, the work environment was improved, and urinary Cd was monitored in association with atmospheric Cd. The five subjects were exposed to cadmium dust at maximum concentrations of 0.857 mg/m3 and 0.045 mg/m3, before and after the improvement, respectively. By arbitrarily setting the urinary Cd level of each worker before improvement at 100, the values after improvement ranged from 41.7 to 94.6, yielding no significant difference. Although the environmental level of Cd was decreased by ten-fold or more, no significant decrease in urinary Cd could be detected.
1986年至1992年期间，对五名接触镉颜料粉尘的工人每年测量两次尿镉水平。1987年底，工作环境得到改善，并结合大气镉对尿镉进行监测。这五名受试者在改善前后分别暴露于最大浓度为0.857 mg/m³和0.045 mg/m³的镉粉尘中。通过将改善前每名工人的尿镉水平任意设定为100，改善后的数值范围为41.7至94.6，无显著差异。尽管镉的环境水平降低了十倍或更多，但未检测到尿镉有显著下降。
