Al-Nasir Farh, Hijazin Tahani J, Al-Alawi Mutaz M, Jiries Anwar, Mayyas Amal, A Al-Dalain Saddam, Al-Dmour Rasha, Alahmad Abdalrahim, Al-Madanat Osama Y, Batarseh Mufeed I
Faculty of Agriculture, Mutah University, Karak 61710, Jordan.
Biology Department, Faculty of Science, Mutah University, Karak 61710, Jordan.
Toxics. 2022 Oct 27;10(11):643. doi: 10.3390/toxics10110643.
The accumulation of polyaromatic hydrocarbons in plants is considered one of the most serious threats faced by mankind because of their persistence in the environment and their carcinogenic and teratogenic effect on human health. The concentrations of sixteen priority polycyclic aromatic hydrocarbons (16 PAHs) were determined in four types of edible vegetables (tomatoes, zucchini, eggplants, and cucumbers), irrigation water, and agriculture soil, where samples were collected from the Jordan Valley, Jordan. The mean total concentration of 16 PAHs (∑16PAHs) ranged from 10.649 to 21.774 µg kg−1 in vegetables, 28.72 µg kg−1 in soil, and 0.218 µg L−1 in the water samples. The tomato samples posed the highest ∑16PAH concentration level in the vegetables, whereas the zucchini samples had the lowest. Generally, the PAHs with a high molecular weight and four or more benzene rings prevailed among the studied samples. The diagnostic ratios and the principal component analysis (PCA) revealed that the PAH contamination sources in soil and vegetables mainly originated from a pyrogenic origin, traffic emission sources, and biomass combustion. The bioconcentration factors (BCF) for ∑16PAHs have been observed in the order of tomatoes > cucumbers and eggplants > zucchini. A potential cancer risk related to lifetime consumption was revealed based on calculating the incremental lifetime cancer risk of PAHs (ILCR). Therefore, sustainable agricultural practices and avoiding biomass combusting would greatly help in minimizing the potential health risk from dietary exposure to PAHs.
由于多环芳烃在环境中具有持久性，且对人类健康具有致癌和致畸作用，其在植物中的积累被认为是人类面临的最严重威胁之一。测定了约旦河谷地区约旦的四种食用蔬菜（番茄、西葫芦、茄子和黄瓜）、灌溉水和农业土壤中16种优先多环芳烃（16种PAHs）的浓度。蔬菜中16种PAHs的总平均浓度（∑16PAHs）在10.649至21.774 µg kg−1之间，土壤中为28.72 µg kg−1，水样中为0.218 µg L−1。番茄样品在蔬菜中∑16PAH浓度水平最高，而西葫芦样品最低。一般来说，在研究样品中，具有高分子量和四个或更多苯环的PAHs占主导。诊断比值和主成分分析（PCA）表明，土壤和蔬菜中的PAH污染源主要来自热解源、交通排放源和生物质燃烧。已观察到∑16PAHs的生物富集因子（BCF）顺序为番茄>黄瓜和茄子>西葫芦。通过计算PAHs的终生增量癌症风险（ILCR），揭示了与终生消费相关的潜在癌症风险。因此，可持续农业实践和避免生物质燃烧将极大地有助于降低通过饮食接触PAHs带来的潜在健康风险。
