Marine litter is included in the eleven descriptors of the Marine Strategy Framework Directive (MSFD) necessary for the assessment of the marine environmental status. In this work, we studied the abundance and typology of microparticles extracted from coastal sediments in the northern Latium area, Tyrrhenian sea, Italy. Particles having different shapes (fragments, microspheres, and filaments), size and color were recognized to belong to two typologies, i.e. microplastics (MPs) and aluminum silicate microspheres (ASMs) interpreted as fly-ash produced by fossil fuel combustion. MPs abundances were comparable with data from the literature related to the same depositional contexts in the Mediterranean Sea and elsewhere, while ASMs contributed 32% to the total average microlitter abundance in this coastal area. MPs and ASMs distribution could reflect the contributions of the land-based sources and the hydrodynamic features of the study area.

海洋废弃物被包括在海洋战略框架指令（MSFD）的11个描述符中，这是评估海洋环境状况所必需的。在这项工作中，我们研究了从意大利第勒尼安海北部t区北部沿海沉积物中提取的微粒的丰度和类型。具有不同形状（碎片，微球和细丝），大小和颜色的颗粒被认为属于两种类型，即微塑料（MPs）和硅酸铝微球（ASM），它们被解释为由化石燃料燃烧产生的飞灰。MPs的丰度可与来自地中海和其他地区相同沉积环境的文献数据相媲美，而ASM占该沿海地区总平均微粉尘丰富度的32％。