Determination Concentration Pb, Cd, Cr, Ni in Iranian India Rice Import

Heavy metal pollution has always been a major cause contamination of environmental and concern for health food. rice is the most popular food in the Iranian and presence of heavy metal in trace level in rice has received spatial attention because they are directly related to health. The aims of this research were to investigate the Pb, Cd, Cr, Ni in Iranian consumed rice. 20 of the most widely consumed brands of Iranian rie were purchased from local market in Iran. 3 samples of each brand were collected and certain volumes of each sample were digested with acid. Heavy metal contents in the tea were determined by atomic absorption spectrometry. The results showed that mean concentration Pb, Cr, Ni in rice samples respectively was 0.387, 0.683, 0.019 (mg/kg). Maximum concentration Pb, Cr, Ni for Tamash, Mehrab and Panel rise sample respectively. Notably the Ni and Cr content in the rice samples was found to be below the food sanitary standards in India rice. In the other hand 50% samples content Pb was found to be upper the food sanitary (Pb: 0.3 mg/kg). The result indicated that weekly intake of heavy metal by rice was below the provisional tolerable weekly intake recommended by WHO/FAO. However, risk assessments needs considerable attention and better prevention this low pollution.