Katalin Hubai, Nora Kováts, Bettina Eck-Varanka, Selenge Tumurbaatar, Gábor Teke
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引用次数: 0
Abstract
Traffic-related particulate matter emissions have been considerably reduced due to stringent regulations in Europe. However, emission of diesel-powered vehicles still poses a significant environmental threat, affecting rural ecosystems and agriculture. Several studies have reported that polycyclic aromatic hydrocarbons (PAHs), a group of potentially toxic organic compounds, can accumulate in crops and vegetables. In our study, white mustard (Sinapis alba L.) plants were experimentally treated with an extract of diesel exhaust. PAH concentrations were measured in the different plant compartments (stems, leaves and seeds), bioconcentration factors (BCFs) were also calculated. Significant accumulation was measured in the leaves and seeds, stems showed lower accumulation potential. All plant matrices showed high tendency to accumulate higher molecular weight PAHs, BCF was the highest in the 6-ring group. The fact that considerable accumulation was experienced in the seeds might show the risk of cultivating crops nearby roads highly impacted by traffic-related emissions.
由于欧洲制定了严格的法规,与交通相关的颗粒物排放已大大减少。然而,柴油动力车辆的排放仍然对环境构成重大威胁,影响着农村生态系统和农业。一些研究报告指出,多环芳烃(PAHs)这类可能有毒的有机化合物会在农作物和蔬菜中积累。在我们的研究中,白芥子(Sinapis alba L.)植物被柴油废气提取物进行了实验性处理。测量了不同植物区系(茎、叶和种子)中多环芳烃的浓度,并计算了生物浓缩系数(BCFs)。叶片和种子中的多环芳烃浓度显著增加,而茎中的多环芳烃浓度则较低。所有植物基质都显示出较高分子量多环芳烃的累积趋势,其中 6 环组的生物浓缩系数最高。种子中的累积量相当大,这可能表明在受交通相关排放物严重影响的道路附近种植作物存在风险。
期刊介绍:
The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.