Almayahi B A, Aljarrah Naheda
Department of Environment, Faculty of Science, University of Kufa, Najaf, Iraq.
Department of Physics, College of Dentistry, Babylon University, Hilla, Iraq.
Heliyon. 2019 Dec 28;6(1):e03134. doi: 10.1016/j.heliyon.2019.e03134. eCollection 2020 Jan.
This study focuses on the emission of alpha particle rates (EAPR) and heavy metal concentrations (HMC) in the rice from Najaf markets. Nuclear Track Detectors and Flame Atomic Absorption Spectrophotometry, were used respectively. This study shows the pollution in the environment through AP and HM and also finds the relationship between AP and HM. The highest EAPR was found to be about 0.0249 mBq cm in the basmati rice, whereas, the lowest EAPR (0.0092 mBq cm) was found in the Indian basmati rice. Highest Fe was found to be about 2.7237 mg/kg in basmati rice, while the lowest Fe (0.3997 mg/kg) was found in the USA basmati rice. Highest Cd was found to be about 0.0468 mg/kg in Iraqi Alnasryah rice, while the lowest Cd (0.0034 mg/kg) was found in Indian basmati rice. The most upper Pb was found to be about 0.2431 mg/kg in Babil Anbar Iraqi rice, while the lowest Pb (0.0695 mg/kg) was found in Indian basmati rice. Pb and Cd were lower than the FAO/WHO recommended limits (Pb, Cd: 0.50 mg/g) and the European Union acceptable dietary limits. In the combination of recent rice consumption data, an estimated weekly intake of toxic element was calculated for the Iraq population. A statistically significant correlation was found between EAPR and HMC in rice at the 0.05 level.
本研究聚焦于纳杰夫市场大米中的α粒子发射率（EAPR）和重金属浓度（HMC）。分别使用了核径迹探测器和火焰原子吸收光谱法。本研究通过α粒子和重金属揭示了环境污染情况，还发现了α粒子与重金属之间的关系。发现印度香米中的最高EAPR约为0.0249毫贝克勒尔/平方厘米，而印度香米中的最低EAPR（0.0092毫贝克勒尔/平方厘米）。发现印度香米中的最高铁含量约为2.7237毫克/千克，而美国香米中的最低铁含量（0.3997毫克/千克）。发现伊拉克阿尔纳斯里亚大米中的最高镉含量约为0.0468毫克/千克，而印度香米中的最低镉含量（0.0034毫克/千克）。发现巴比伦安巴尔伊拉克大米中的最高铅含量约为0.2431毫克/千克，而印度香米中的最低铅含量（0.0695毫克/千克）。铅和镉低于粮农组织/世界卫生组织推荐限值（铅、镉：0.50毫克/克）以及欧盟可接受的膳食限值。结合近期大米消费数据，计算了伊拉克人群每周有毒元素的估计摄入量。在0.05水平上，发现大米中的EAPR与HMC之间存在统计学显著相关性。
