An investigation of some heavy metals content in rice (Oryza sativa) and associated health risks was carried out for residents of Iranshahr city, Iran. Average daily rice consumption of the citizens and most widely used rice brands in the market of Iranshahr were determined using a questionnaire. Besides, the concentration of heavy metals in the gathered rice samples was measured by inductively coupled plasma mass spectrometry (ICP-MS). Monte Carlo uncertainty simulation was utilized in conducting exposure assessment and investigating the non-carcinogenic effects of the studied elements as well as the carcinogenic effect of As. Concentrations of As, Cd, Pb, Cu, Al, and Mo were 0.369 ± 0.094, 0.0337 ± 0.039, 0.123 ± 0.14, 3.095 ± 439.42, 39.6 ± 14.73, and 1.106 ± 0.133 mg kg⁻¹, respectively. Al (0.18 ± 0.15 mg kg⁻¹ d⁻¹) and Cd (0.00015 ± 0.00034 mg kg⁻¹ d⁻¹) were the highest and lowest estimated daily intake, respectively. Except As (5.23 ± 4.01), the calculated hazard quotient for investigated elements showed no non-carcinogenic health risk. Besides, the simulation of the carcinogenic risk effect for As (2.37E-3) revealed that the ingestion of the studied rice brands would cause cancer risk due to lifetime consumption. Results show that consumption of rice in the Iranshahr city is a potential source of exposure to the studied elements.

对伊朗伊斯坦沙尔市的居民进行了稻米（Oryza sativa）中一些重金属含量及其相关健康风险的调查。使用问卷调查确定了伊朗人民市场中居民和最广泛使用的大米品牌的日均大米消费量。此外，通过电感耦合等离子体质谱法（ICP-MS）测量采集的大米样品中的重金属浓度。蒙特卡洛不确定性模拟用于进行暴露评估和调查所研究元素的非致癌作用以及砷的致癌作用。As，Cd，Pb，Cu，Al和Mo的浓度为0.369±0.094、0.0337±0.039、0.123±0.14、3.095±439.42、39.6±14.73和1.106±0.133 mg kg ^-1， 分别。Al（0.18±0.15 mg kg ^-1 d ^-1）和Cd（0.00015±0.00034 mg kg ^-1 d ^-1）分别是估计的每日最高摄入量和最低摄入量。除砷（5.23±4.01）外，计算出的被调查元素的危险商没有显示非致癌的健康风险。此外，As（2.37E-3）致癌风险效应的模拟显示，摄入所研究的大米品牌会因终生食用而引起癌症风险。结果表明，伊朗城市中的大米消费是接触所研究元素的潜在来源。