Helmholtz-Zentrum Hereon, Institute of Coastal Environmental Chemistry, Department Inorganic Environmental Chemistry, Max-Planck-Str. 1, 21502 Geesthacht, Germany; Universität Hamburg, Department of Chemistry, Inorganic and Applied Chemistry, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany.
Helmholtz-Zentrum Hereon, Institute of Coastal Environmental Chemistry, Department Inorganic Environmental Chemistry, Max-Planck-Str. 1, 21502 Geesthacht, Germany.
Mar Pollut Bull. 2023 Sep;194(Pt A):115396. doi: 10.1016/j.marpolbul.2023.115396. Epub 2023 Aug 13.
To evaluate potential metal emissions from offshore wind farms (OWFs), 215 surface sediment samples from different German North Sea OWFs taken between 2016 and 2022 were analyzed for their mass fractions of metals and their isotopic composition of Sr. For the first time, this study provides large-scale elemental data from OWFs of the previously proposed galvanic anode tracers Cd, Pb, Zn, Ga and In. Results show that mass fractions of the legacy pollutants Cd, Pb and Zn were mostly within the known variability of North Sea sediments. At the current stage the analyzed Ga and In mass fractions as well as Ga/In ratios do not point towards an accumulation in sediments caused by galvanic anodes used in OWFs. However, further investigations are advisable to evaluate long-term effects over the expected lifetime of OWFs, especially with regard to the current intensification of offshore wind energy development.
为了评估海上风电场（OWFs）的潜在金属排放，对 2016 年至 2022 年间从德国北海不同 OWFs 采集的 215 个表层沉积物样本进行了金属质量分数及其 Sr 同位素组成分析。本研究首次提供了先前提出的电偶阳极示踪剂 Cd、Pb、Zn、Ga 和 In 的 OWFs 的大规模元素数据。结果表明，Cd、Pb 和 Zn 的质量分数大多在北海沉积物的已知变异性范围内。在现阶段，分析得到的 Ga 和 In 的质量分数以及 Ga/In 比值并没有指向 OWFs 中使用的电偶阳极导致的沉积物积累。然而，为了评估 OWFs 预期寿命内的长期影响，特别是考虑到当前海上风能开发的加强，还需要进一步的研究。
