We analyzed the biological samples separately for the two sampling occasions. We compared concentrations in blood, plasma, and urine between recycling workers and office workers using the Mann–Whitney test. For Cd, we used a univariate ANOVA to evaluate the urine concentration between the work tasks, with adjustments for gender, age, and current smoking (yes/no). We also used the Kruskal–Wallis test to evaluate differences in exposure biomarkers between the three recycling work tasks: dismantling, indoor, and outdoors. We evaluated correlations between exposure biomarker concentrations in biological samples and the inhalable fraction for recycling workers using the Spearman Rho correlation.