As a result of the chemical analysis shown in Table 5, the As concentration
in polished rice was in the range of 0.104 and 0.774 mg kg−1
(DW), with an average of 0.247 mg kg−1 (DW). This value is lower
than the current maximum allowable concentration (MAC) of
0.7 mg As kg−1 (DW) (Huang et al., 2008), while it is higher than data
reported by Jung et al. (2005). The total As levels found in this study
are the same magnitude as those reported by Pal et al. (2009) of
0.25mg kg−1 (DW),while theywere relatively lower than those reported
by Iimura (1981) investigated from mining areas in Japan. Thereupon,
the sorting of high concentration of As in rice grainswas observed in
the Dalsung mine and next to the Sambo mine, while rice grains from
the Munmyung and Yeongdae mines represented relatively low As
concentrations