Toxic effects of chemical warfare agent mixtures on the mussel Mytilus trossulus in the Baltic Sea: A laboratory exposure study

Autor: Katja Broeg, Raisa Turja, Nicole Höher, Rune Berglind, Jenny Rattfelt Nyholm, Mia Halme, Matthias Brenner, Paula Vanninen, Janina Baršienė, Laura Butrimavičienė, Per Leffler, Maaret Karjalainen, Kari K. Lehtonen, Hanna Niemikoski, Anders Östin
Rok vydání: 2019
Předmět:
Zdroj: Marine Environmental Research. 145:112-122
ISSN: 0141-1136
DOI: 10.1016/j.marenvres.2019.02.001
Popis: Baltic blue mussels (Mytilus trossulus) were implemented to assess potential toxicity, health impairments and bioaccumulation of dumped chemical warfare agents on marine benthic organisms. Mussels were collected from a pristine cultivation side and exposed under laboratory conditions to different mixtures of chemical warfare agents (CWAs) related phenyl arsenic compounds, Clark I and Adamsite as well as chloroacetophenone. Using a multi-biomarker approach, mussels were assessed thereafter for effects at different organisational levels ranging from geno-to cytotoxic effects, differences in enzyme kinetics and immunological responses. In an integrated approach, chemical analysis of water and tissue of the test organisms was performed in parallel. The results show clearly that exposed mussels bioaccumulate the oxidized forms of chemical warfare agents Clark I, Adamsite (DAox and DMox) and, to a certain extent, also chloroacetophenone into their tissues. Adverse effects in the test organisms at subcellular and functional level, including cytotoxic, immunotoxic and oxidative stress effects were visible. These acute effects occurred even at the lowest test concentration.
Databáze: OpenAIRE