Zeiner Michaela, Sjöberg Viktor, Olsman Helena
Man-Technology-Environment Research Centre, School of Science and Technology, Örebro University, Fakultetsgatan 1, 70182 Orebro, Sweden.
Eurofins European Competence Centre for PFAS, Eurofins Food & Feed Testing Sweden AB, Sjöhagsgatan 3, 53140 Lidkoping, Sweden.
Molecules. 2025 May 17;30(10):2196. doi: 10.3390/molecules30102196.
Potentially toxic elements (PTEs) have steadily become a serious environmental problem, especially regarding brownfields chosen for reuse, e.g., as a residential area. "Norra Hamnstaden" in Lidköping (Sweden) has a long history of industrial activity, including porcelain production with the resultant industrial waste deposited close by resulting in elevated levels of metals used for porcelain glazes, especially lead. To estimate the bioavailability of twelve PTEs (As, Ba, Pb, Cd, Co, Cu, Cr, Mn, Mo, Ni, V, Zn), their uptake by birches () as well as Scots pines () was investigated through analyzing their leaves. Sampling was carried out on five trees once per month in the period from May to August. Different uptake patterns were observed for birches and pines, for the latter even varying with age. The birch samples showed higher contents of nickel, cobalt, molybdenum, and lead compared to the reference trees. Also, the pine needles had elevated lead levels, although by a lower factor. Birch leaves revealed surprising patterns of elevated element bioaccumulation factors, with barium reaching up to eight, offering the possibility to limit analyses to plant material for risk assessments instead of soil analysis.
潜在有毒元素（PTEs）已逐渐成为一个严重的环境问题，特别是对于那些被选定重新利用的棕地，例如用作居民区。瑞典利德雪平的“诺拉哈姆斯塔登”有着悠久的工业活动历史，包括瓷器生产，由此产生的工业废料被堆放在附近，导致用于瓷器釉料的金属含量升高，尤其是铅。为了估算12种潜在有毒元素（砷、钡、铅、镉、钴、铜、铬、锰、钼、镍、钒、锌）的生物有效性，通过分析桦树（）和苏格兰松树（）的叶子来研究它们对这些元素的吸收情况。在5月至8月期间，每月对五棵树进行一次采样。观察到桦树和松树有不同的吸收模式，对于松树来说，吸收模式甚至随树龄而变化。与对照树相比，桦树样本中的镍、钴、钼和铅含量更高。此外，松针中的铅含量也有所升高，不过升高幅度较小。桦树叶显示出元素生物累积因子升高的惊人模式，钡的生物累积因子高达8，这为在风险评估中仅对植物材料进行分析而非土壤分析提供了可能性。
