... Poland. Pol J Occup MedEnviron Health 1993; 6: 133–141.41)/Orlowski C, Piotrowski JK, Kubów M. The levels of cadmium, zinc and copper in the renal cortex and liver of the inhabitants of the ... 35–50 µg/day to 30 µg/day. The cadmiumlevel in the renal cortex of Japanese is the highest in the world, but the cadmium in the kidney has beendecreasing in most Japanese.(J Occup Health ... half-life in the human body, ranging from 10 to 33 years1, 2). The amount of cadmium that has accumulated in the kidneys is afunction of age and/ or daily cadmium intake, and the latteris mainly...