Fig. 5

Environmental platinum levels at the hospital. Environmental platinum levels in each department in (a) 2010 and (b) 2015. Office, non-medical office staff not handling PDs; Diab, diabetes; Hemato, hematology; Resp, respiratory; Gastro, gastroenterology; Pharmac, pharmacy; pg, picogram. Values indicate Kruskal-Wallis testing with levels of significance (P < 0.05)