Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran.
Department of Basic Medical Sciences, Neyshabur University of Medical Sciences, Neyshabur, Iran.
Environ Monit Assess. 2024 Sep 18;196(10):949. doi: 10.1007/s10661-024-12976-6.
The present study was designed to determine the levels of heavy metals (Cu, Pb, Ni, Cr, Zn, Mn, Cd, and Co), Mn, and As in Iranian-grown rice and imported rice consumed in Neyshabur City. For this research, 90 samples from 30 different brands widely consumed in this city were collected. The content of heavy metals and the health risks associated with their use were then studied. The study found that Zn (14.21 mg kg) had the highest content in Iranian and imported rice varieties, whereas Cd (0.02 mg kg) had the lowest value. The health risk assessment was also done in three scenarios and separately for two types of rice. The results showed that the total hazard quotient (i.e., THQ) was measured for all metals and all three scenarios, and for both types of rice, it is THQ > 1, which indicates the risk of non-carcinogenic in rice. The cancer risk for three scenarios and two types of imported and Iranian rice is in the unsafe range for As (8.80 × 10 to 7.00 × 10), Ni (4.60 × 10 to 3.60 × 10) and Cr (2.20 × 10 to 1.90 × 10) and negligible for Pb (1.09 × 10 to 1.49 × 10) and Cd (7.83 × 10 to 8.20 × 10).
本研究旨在测定伊朗种植的大米和进口大米中重金属（Cu、Pb、Ni、Cr、Zn、Mn、Cd 和 Co）、Mn 和 As 的含量。为此，从该市广泛消费的 30 个不同品牌中采集了 90 个样本。然后研究了重金属的含量及其使用带来的健康风险。研究发现，伊朗和进口大米品种中 Zn（14.21mg kg）的含量最高，而 Cd（0.02mg kg）的含量最低。还分别在三种情况下对两种类型的大米进行了健康风险评估。结果表明，所有金属和所有三种情况下的总危害系数（即 THQ）均进行了测量，对于两种类型的大米，THQ>1，这表明大米存在非致癌风险。对于三种情况和两种类型的进口和伊朗大米，As（8.80×10 至 7.00×10）、Ni（4.60×10 至 3.60×10）和 Cr（2.20×10 至 1.90×10）的癌症风险处于不安全范围，而 Pb（1.09×10 至 1.49×10）和 Cd（7.83×10 至 8.20×10）的风险可忽略不计。
