Gholami Zeinab, Rouzbahani Maryam Mohammadi, Payandeh Khoshnaz, Sabzalipour Sima
Department of Environment, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
Department of Soil Science, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
Sci Rep. 2025 May 4;15(1):15580. doi: 10.1038/s41598-025-89281-w.
Corn is one of the most important grains in the human food basket and is also widely cultivated in Iran. This research was conducted to evaluate the status of arsenic, lead, and chromium contamination in corn (Zea mays) samples grown in Dezful and Behbahan cities in Khuzestan province. In this research, five farms were randomly selected in each city, and from each field, five soil samples and five corn samples were prepared in the summer and autumn. A total of 50 soil samples and 50 corn samples were collected from the two study areas of Dezful and Behbahan cities in 2022. The average concentration of Pb, As, and Cr in corn samples was 1.84, 1.57, and 4.92 mg kg, and in soil samples, 11.91, 4.02, and 76.86 mg kg, respectively. The highest Transfer Factor (TF) for Pb, As, and Cr were 0.256, 0.762, and 0.128, respectively. The highest values of the CR index were obtained for lead, arsenic, and chromium, at 0.05, 8.40, and 9.27, respectively. According to the non-carcinogenic risk index (THQ) and carcinogenic risk index (CR), these metals can be dangerous for human health, but the THQ for Cr does not cause problems for adults and children.
玉米是人类食物篮子中最重要的谷物之一，在伊朗也广泛种植。本研究旨在评估胡齐斯坦省迪兹富勒市和贝赫巴汉市种植的玉米（玉米属）样本中砷、铅和铬的污染状况。在本研究中，每个城市随机选择了五个农场，在夏季和秋季从每个田地中采集了五个土壤样本和五个玉米样本。2022年，从迪兹富勒市和贝赫巴汉市的两个研究区域共采集了50个土壤样本和50个玉米样本。玉米样本中铅、砷和铬的平均浓度分别为1.84、1.57和4.92毫克/千克，土壤样本中分别为11.91、4.02和76.86毫克/千克。铅、砷和铬的最高转移因子（TF）分别为0.256、0.762和0.128。铅、砷和铬的CR指数最高值分别为0.05、8.40和9.27。根据非致癌风险指数（THQ）和致癌风险指数（CR），这些金属可能对人类健康有害，但铬的THQ对成年人和儿童不会造成问题。
