The accumulation of marine litter on beaches has a detrimental impact on the environment, human health, and recreational activities. A total of 116 monitoring surveys were conducted along the shore of the Kaliningrad region between 2019 and 2023. Sampling of anthropogenic and plastic litter (>0.5 cm) was carried out under various meteorological conditions on eight sandy beaches. The greatest abundance and mass of plastic marine litter (mean ± SE: 13.75 ± 8.61 items/m2 and 19.97 ± 5.92 gDW/m2, correspondingly) were observed in the aftermath of storms within beach-cast accumulation stains at the shoreline, where it was intermixed with organic debris. This is two orders of magnitude greater than the plastic litter contamination obtained using the OSPAR methodology at the same beach during fine weather (0.11 ± 0.01 items/m2, 0.33 ± 0.02 gDW/m2). The results suggest that the most effective strategy for beach cleaning is to implement it in the post-storm period.

中文翻译：

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沙滩上塑料垃圾的丰度和质量：暴风雨事件的贡献


海滩上海洋垃圾的堆积对环境、人类健康和娱乐活动产生不利影响。 2019年至2023年间，加里宁格勒地区沿岸共进行了116次监测调查。在8个沙滩的不同气象条件下对人为和塑料垃圾进行了采样（>0.5 cm）。在风暴过后，在海岸线的海滩堆积污渍内观察到塑料海洋垃圾的最大丰度和质量（平均值±标准误差：13.75 ± 8.61 件/平方米和 19.97 ± 5.92 gDW/平方米）。与有机碎片混合。这比晴天期间在同一海滩使用 OSPAR 方法获得的塑料垃圾污染高出两个数量级（0.11 ± 0.01 件/平方米、0.33 ± 0.02 gDW/平方米）。结果表明，最有效的海滩清洁策略是在风暴过后实施。