This study identified the role of milling and parboiling on arsenic (As) content its species in large numbers rice samples. Total As contents were 108 ± 33 μg/kg polished grains (PR), 159 46 unpolished (UR), 145 42 parboiled (PPR) 44 (PUR). The percentages inorganic (iAs) 66% 8% PR from 72% to 77% other grain categories. polishing process reduced grains, removing outer part UR with high amount ...