Among the 275 samples analyzed, aflatoxin B1 and aflatoxin B2 were detected in 211(76.72% of total) samples.
Aflatoxin B1 was detected in 203(73.82% of total) samples with a mean and standard deviation of 2.3±10.21ppb. Aflatoxin B2 together with aflatoxin B1 were detected in only 8(2.91% of total) samples with a mean and standard deviation of 1.38±2.7ppb of aflatoxin B2 and 2.99±1.56 of aflatoxin B1 respectively. Aflatoxin B1 level in 5 samples (1.82%) was above the maximum tolerated level of aflatoxin B1 in Iran (5ppb). However considering the Iranian maximum tolerated level for aflatoxins in rice (30ppb), only 3(1.09%) samples were above the 30ppb and also in regard to the European maximum tolerated level for aflatoxins in rice (4ppb), only 9(3.27%) samples were considered as higher than 4ppb.