Chelomin Victor Pavlovich, Dovzhenko Nadezda Vladimirovna, Slobodskova Valentina Vladimirovna, Mazur Andrey Alexandrovich, Kukla Sergey Petrovich, Zhukovskaya Avianna Fayazovna
Far Eastern Branch, V.I.l'ichev Pacific Oceanological Institute, Russian Academy of Sciences, Vladivostok 690041, Russia.
Toxics. 2023 Sep 14;11(9):781. doi: 10.3390/toxics11090781.
Expanded polystyrene (EPS) is a major component of plastic debris in the environment, including coastal and littoral zones. EPS is widely used in various industries including fish farming and aquaculture, which poses a serious potential threat not only to cultured hydrobionts but also to all living organisms, including humans. This paper presents the results of experimental studies on the effects of EPS (0.024 m/L) on marine mollusks and , which are typical inhabitants of the upper littoral of Peter the Great Bay (Sea of Japan), belonging to different systematic groups and differing in the type of nutrition. The results of biochemical marker analysis showed the development of oxidative stress processes. Thus, increasing malondialdehyde content relative to control values was registered in the digestive glands of and . In the cells of the digestive glands of integral antioxidant activity decreased more than 1.5 times compared with that of the control. The change in the concentration of protein carbonyls was unchanged in , whereas in there was a 1.5-fold increase. EPS exposure also resulted in significant DNA damage in the studied mollusks-the damage level increased 2.5-fold in and 1.5-fold in relative to the control, indicating the genotoxic potential of EPS litters.
发泡聚苯乙烯（EPS）是环境中塑料垃圾的主要成分，包括沿海和滨海区域。EPS广泛应用于包括养鱼业和水产养殖在内的各种行业，这不仅对养殖水生生物构成严重潜在威胁，而且对包括人类在内的所有生物都构成严重潜在威胁。本文介绍了关于EPS（0.024 m/L）对海洋软体动物影响的实验研究结果，这些软体动物是彼得大帝湾（日本海）潮间带上部的典型居民，属于不同的分类群体，营养类型也不同。生化标志物分析结果表明氧化应激过程的发展。因此，在 和 的消化腺中，相对于对照值，丙二醛含量有所增加。在 的消化腺细胞中，整体抗氧化活性与对照相比下降了1.5倍以上。 在 中蛋白质羰基浓度的变化没有改变，而在 中则增加了1.5倍。接触EPS还导致所研究的软体动物出现明显的DNA损伤——相对于对照， 在 中的损伤水平增加了2.5倍，在 中增加了1.5倍，表明EPS垃圾具有遗传毒性潜力。
