Concentrations of cadmium (Cd) in 46 jasmine rice samples were measured by inductively coupled plasma mass spectrometer (ICP-MS). The rice samples were digested using microwave-assisted acid digestion. The recovery for the analysis of Cd in rice samples was higher than 80%. The mean Cd concentration found in jasmine rice samples of 0.0119 mg kg -1 was obtained. Cd concentration in the studied samples was lower than 0.4 mg kg -1 (Codex maximum limit for Cd). Risk assessment of Cd in consumption of jasmine rice for Thai population was presented. The values of estimated weekly intake (EWI) of jasmine rice for Thai population were 0.25 μg kg -1 BW week -1 (male) and 0.30 μg kg -1 BW week -1 (female). The estimated monthly intake of 1.07 (male) and 1.28 μg kg -1 BW month -1 (female) was less than 25 μg kg -1 BW (the provisional tolerable monthly intake, PTMI). This indicated that it is safe for both Thai male and female in jasmine rice consumption in term of Cd. Moreover, the non-carcinogenic risks evaluated by the simulation of the hazard quotient (HQ) were 0.037 for male and 0.044 for female, revealed that no harmful effects resulting from exposure of Cd via jasmine rice consumption for Thai population with the mean of simulated HQ and 90 th percentile were less than 1 (the HQ threshold). • Thai Hom Mali rice samples were grown in the northeast of Thailand. • Cd in Thai Hom Mali rice from 5 provinces was measured by ICP-MS. • Cd in Thai Hom Mali rice samples was lower than the Codex maximum level. • Estimate daily and weekly intake of Cd was lower for male than female population. • Non-carcinogenic risk caused by consumption of rice was calculated and simulated.
Kongsri et al. (Sun,) studied this question.