Zolfaghari Ghasem, Akhgari Sang Atash Zohreh, Sazgar Ameneh
Department of Environmental Sciences and Engineering, Faculty of Environmental Sciences, Hakim Sabzevari University, Razavi Khorasan, Sabzevar, P.O. Box: 397, Iran.
Department of Environmental Sciences and Engineering, Gorgan University of Agriculture and Natural Resources, Gorgan, Iran.
MethodsX. 2018 Jan 31;5:43-60. doi: 10.1016/j.mex.2018.01.003. eCollection 2018.
This paper provides the first quantitative information on accumulation of cadmium, lead, and arsenic in the soil, leaf, and root of wheat ( L.) corn ), and tomato ) in the downstream agricultural lands of an industrial area and agricultural lands of a rural area, Razavi Khorasan province, Iran. The results showed that there is a significant difference among the cadmium concentrations in the soil, root and leaf/seed in various plants ( = 0.00 for wheat and corn and = 0.0004 for tomato). There was no significant difference between the lead concentrations in the soil, root and leaf/seed in the case of wheat ( 0.05), but there was a significant difference for other plants. Furthermore, statistical analysis was done on arsenic concentrations of soil, root and leaf/seed in the wheat, tomato, and corn. In the case of rural area, the results showed significant difference between the cadmium and lead concentrations of soil, root and leaf/seed in the wheat and tomato. In this area, statistical analysis was done on the arsenic concentrations of soil, root and leaf/seed in wheat, tomato, and corn ( = 0.00 for wheat, = 0.00 for tomato, and for corn). The heavy metals concentrations in some parts of the plants in the industrial area were above the standards. The concentrations of cadmium, lead, and arsenic for soil were below the limits proposed by WHO, EPA, and EU. In this study, the Total Hazard Quotient (THQ) through consumption of wheat was less than 1, indicating no significant potential health risk associated with the consumption of wheat from the areas. The cancer risk of arsenic from wheat consumption was as 255 × 10 and 0.00 in the industrial and rural areas, respectively. •Atomic absorption spectrophotometer (AAS) equipped with graphite furnace was used for heavy metal analysis.•The general results revealed that the levels of Cd, Pb, and As in the industrial area were higher than the rural area.•The cancer risk of arsenic in wheat for the industrial area is greater than 1 × 10, which is unacceptable.
本文提供了伊朗拉扎维霍拉桑省工业区下游农田和农村地区农田中小麦（L.）、玉米（）和番茄（）的土壤、叶片及根部镉、铅和砷积累的首批定量信息。结果表明，不同植物土壤、根部及叶片/种子中的镉浓度存在显著差异（小麦和玉米为 = 0.00，番茄为 = 0.0004）。小麦土壤、根部及叶片/种子中的铅浓度之间无显著差异（ >0.05），但其他植物存在显著差异。此外，还对小麦、番茄和玉米土壤、根部及叶片/种子中的砷浓度进行了统计分析。在农村地区，结果表明小麦和番茄土壤、根部及叶片/种子中的镉和铅浓度存在显著差异。在该地区，对小麦、番茄和玉米土壤、根部及叶片/种子中的砷浓度进行了统计分析（小麦为 = 0.00，番茄为 = 0.00，玉米为 ）。工业区部分植物中的重金属浓度高于标准。土壤中镉、铅和砷的浓度低于世界卫生组织、美国环境保护局和欧盟提出的限值。本研究中，通过食用小麦的总危害商数（THQ）小于1，表明食用该地区小麦不存在显著的潜在健康风险。工业区和农村地区因食用小麦摄入砷的致癌风险分别为255 × 10和0.00。•使用配备石墨炉的原子吸收分光光度计（AAS）进行重金属分析。•总体结果显示，工业区镉、铅和砷的含量高于农村地区。•工业区小麦中砷的致癌风险大于1 × 10，这是不可接受的。
