Estimation and knowledge of potentially toxic elements (PTEs) in soils and herbaceous plants are vital for ecotoxicological reasons. This study explored PTE accumulation in the aerial organ (leaf) of herbaceous plants in PTE‐contaminated soils in a linear transect of three localities close to the Litavka River in Pribram, Czech Republic. Leaf accumulation answers questions on PTE hyperaccumulation and removal during phytoremediation. The study adopted the pseudo‐total extraction (aqua regia soluble) of PTE contents (Cd, Cu, Zn, Pb, and Ni) of soil and leaf samples determined by inductively coupled plasma optical emission spectroscopy. Except for Ni, the contents of Cd, Cu, Pb, and Zn were above the permissible limits in soil following WHO with contamination factors ranging from moderate to serious contamination in the sites. Of the 118 herbaceous species in the sites, 43% (52 species) accumulated Cd above the WHO limit in leaves with Geranium pusillum Burm. f. having the highest content (0.84 mg kg−1) while only Geum urbanum L. (132 mg kg−1) and G. pusillum (166 mg kg−1) were above the limit that supports the principal option to clean the infested soils. There was a low bioaccumulation of all plants indicated by a bioaccumulation factor less < 1 (BAFleaf < 1) with PTE content lower than reported hyperaccumulator values. The hyperaccumulation status of PTE of plants stated by previous authors in leaves can be unreliable, under natural soil conditions, accumulations can even be lower than the permissible limits. Further studies requiring different soils and other plants are needed to make a reliable inference on which organs of plants support hyperaccumulation status.

中文翻译：

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在自然土壤条件下，生长在受人为诱导的潜在有毒元素污染的田地上的草本植物的叶片积累能力


出于生态毒理学原因，对土壤和草本植物中潜在有毒元素 （PTE） 的估计和了解至关重要。本研究探讨了捷克共和国普里布拉姆 Litavka 河附近三个地点的线性样带中 PTE 在受 PTE 污染的土壤中草本植物气生器官（叶）中的积累。叶子积累回答了植物修复过程中 PTE 过度积累和去除的问题。该研究采用了通过电感耦合等离子体发射光谱法测定土壤和叶片样品中 PTE 含量（Cd、Cu、Zn、Pb 和 Ni）的伪全提取（王水可溶性）。除 Ni 外，土壤中 Cd、Cu、Pb 和 Zn 的含量均高于 WHO 规定的允许限度，场地污染系数从中度到重度污染不等。在这些地点的 118 种草本植物中，43%（52 种）在 Geranium pusillum Burm 的叶子中积累了超过 WHO 限值的 Cd。f. 含量最高 （0.84 mg kg-1），而只有 Geum urbanum L. （132 mg kg-1） 和 G. pusillum （166 mg kg-1） 高于支持清洁受感染土壤的主要选择的限度。所有植物的生物积累率都较低，由生物积累因子小于 < 1 （BAFleaf < 1） 表明，PTE 含量低于报告的超积累值。前任作者所说的植物在叶子中的 PTE 过度积累状态可能不可靠，在自然土壤条件下，积累甚至可能低于允许的限度。需要需要不同土壤和其他植物的进一步研究，以可靠地推断植物的哪些器官支持过度积累状态。