Cadmium levels in domestic cultivated rice samples varied from
0.27 to 0.47 (mg kg–1). Kamfirooz rice presented the highest mean
levels (0.47 mg kg–1) against 0.27 mg kg–1 in Kohmare rice. The
mean values for cadmium were considerably higher than the
allowable limits set by FAO/WHO and National standards of Iran
as shown in Fig. 1.