埃塞俄比亚东北部农业土壤中的潜在有毒金属:对番茄生产和人类健康的影响。
Potentially toxic metals in Northeast Ethiopian agricultural soils: implications for Solanum lycopersicum (Tomato) production and human health.
发表日期:2024 Aug 28
作者:
Tilahun Tadesse Mekonnen, Asamene Embiale Taye
来源:
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
摘要:
接触受重金属污染的蔬菜、灌溉水和农业土壤是全球最具挑战性的环境问题之一。本研究旨在评估从埃塞俄比亚东北部阿巴里灌溉点收集的农业土壤、灌溉水和番茄植株中潜在有毒金属 (PTM) 的健康影响,包括铬、镉、铁、铅、铜、锌和钴。使用酸消化法消化样品,并使用电感耦合等离子体发射光谱法定量其浓度。土壤、番茄和灌溉水样品中 PTM 的浓度范围为 49,020±±275 (Fe) 至 11.85±±0.44 (Cd)、170±±1.98 (Fe) 至 0.29±0.006 (Cd) mg kg-1 和 0.24分别为 ± 0.003 (Fe) 至 0.025 ±0.005 (Ni) mg L-1。结果显示,土壤中的锌、镍、镉和铬、番茄中的所有金属以及灌溉水样中的铜、镍、镉和铅均高于世界卫生组织阈值。此外,分别使用危害商(HQ)和危害指数(HI)值对农场土壤、灌溉水和番茄消耗的单独和累积暴露进行了调查。结果显示,个人接触每种样本类型不会对健康产生显着影响(HQ < 1)。然而,同时接触所有样本类型(土壤、番茄和灌溉水)很可能会影响健康(HI > 1)。 Cr、Cd、Ni、Pb的致癌浓度总和大于1 × 10-4,表明农民一生中患癌症的概率较高。强烈建议当地人尽量减少同时接触土壤、番茄和灌溉水,以防止 PTM 风险。© 2024。作者获得 Springer Nature B.V. 的独家许可。
Exposure to heavy metal-contaminated vegetables, irrigation water and agricultural soil is one of the most challenging environmental issues worldwide. This study aimed to evaluate the health effects of potentially toxic metals (PTMs) including Cr, Cd, Fe, Pb, Cu, Zn, and Co from agricultural soil, irrigation water, and tomato plants collected from the Abuarie irrigation site, Northeast Ethiopia. The samples were digested using acid digestion method, and its concentration was quantified using Inductively Coupled Plasma-Optical Emission Spectroscopy. The concentrations of PTMs in the soil, tomato, and irrigation water samples ranged from 49,020 ± 275 (Fe) to 11.85 ± 0.44 (Cd), 170 ± 1.98 (Fe) to 0.29 ± 0.006 (Cd) mg kg-1, and 0.24 ± 0.003 (Fe) to 0.025 ± 0.005 (Ni) mg L-1 , respectively. The results revealed Zn, Ni, Cd and Cr in soil, all metals in tomato, and Cu, Ni, Cd and Pb in irrigation water sample were above the World Health Organization threshold values. Moreover, the separate and cumulative exposure to farm soil, irrigation water, and consumption of tomato were investigated using the hazard quotient (HQ) and hazard index (HI) values, respectively. The results revealed that individual exposure to each sample type did not have a significant impact on health (HQ < 1). However, simultaneous exposure to all of the sample types (soil, tomato and irrigation water) at the same time had a high likelihood of affecting health (HI > 1). The total carcinogenic concentrations of Cr, Cd, Ni, and Pb were greater than 1 × 10-4, revealing that farmers have a high probability of developing cancer during their lifetime. Minimizing simultaneous exposure to soil, tomato, and irrigated water for local people is highly recommended to prevent the risk of PTMs.© 2024. The Author(s), under exclusive licence to Springer Nature B.V.