The RAs species concentration in 97 rice cracker samples belonging to 15 different commercial brands ranged from 0.019 to 0.246 mg/kg (Table 1). The Asi percentage ranged from 71.1% to 100% of the RAs species concentration. The Asi concentration ranged from 0.019 to 0.212 mg/kg and showed a good correlation with the rice content, which means that most of the Asi is coming
from the rice. Due to the Asi concentration level 1% of the rice crackers samples evaluated would be above the JECFA proposed maximum level. The rice cracker brand M019 had the highest Asi
concentration (median of 0.205 mg/kg; p < 0.001). The major organic As species for each rice cracker was DMA, ranging from 0.001 to 0.172 mg/kg. Rice crackers labelled as produced under
organic standards showed higher levels of Asi (median of 0.121 mg/kg) than non-organic samples elaborated with milled rice (median of 0.071 mg/kg; p < 0.001) (Table 2 and Fig. 1).