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Künitzer, Anita

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2022 - 20232
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  • Vorschaubild nicht verfügbar
    Veröffentlichung
    Long-term trends for blue mussels from the German Environmental Specimen Bank show first evidence of munition contaminants uptake
    (2023) Strehse, Jennifer Susanne; Bünning, Tobias; Koschorreck, Jan; Künitzer, Anita
    Submerged munitions are present in marine waters across the globe. They contain energetic compounds (ECs), such as TNT and metabolites thereof, which are considered carcinogenic, exhibit toxic effects in marine organisms, and may affect human health. The aim of this study was to investigate the occurrence of ECs and their trends in blue mussels from the annual collections of the German Environmental Specimen Bank sampled over the last 30 years at three different locations along the coastline of the Baltic and North Sea. Samples were analyzed by GC-MS/MS for 1,3-dinitrobenzene (1,3-DNB), 2,4-dinitrotoluene (2,4-DNT), 2,4,6-trinitrotoluene (TNT), 2-amino-4,6-dinitrotoluene (2-ADNT), and 4-amino-2,6-dinitrotoluene (4-ADNT). The first signals indicating trace levels of 1,3-DNB were observed in samples from 1999 and 2000. ECs were also found below the limit of detection (LoD) in subsequent years. From 2012 onwards, signals just above the LoD were detected. The highest signal intensities of 2-ADNT and 4-ADNT, just below the LoQ (0.14 ng/g d.w. and 0.17 ng/g d.w., respectively), were measured in 2019 and 2020. This study clearly shows that corroding submerged munitions are gradually releasing ECs into the waters that can be detected in randomly sampled blue mussels, even though the concentrations measured are still in the non-quantifiable trace range. © Authors
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    Veröffentlichung
    Eutrophication, contaminants, litter and climate change
    (2022) Busse, Lilian; Claussen, Ulrich; Krakau, Manuela; Künitzer, Anita; Leujak, Wera; Weiß, Andrea; Werner, Stefanie
    Die Ostsee ist nach wie vor von zahlreichen Belastungen betroffen. Es sind weitere Anstrengungen erforderlich, um diese zu reduzieren und gesunde und widerstandsfähige Meeresökosysteme sowie ihre nachhaltige Nutzung zu erreichen. Dies kann nur durch die Zusammenarbeit der Ostseeanrainerstaaten und eine starke regionale Governance erzielt werden. Der Ostseeaktionsplan ist das vielversprechendste Instrument, diese Bemühungen für die Ostsee umzusetzen und die globalen Ziele des Meeresschutzes voranzubringen. ©2022 Walter de Gruyter GmbH