Enhanced visual counting technique coupled with combustion analysis and differential scanning calorimetry (DSC) was applied to assess microplastics (MPs) contamination in fish digestive tracts from Eastern Harbor, Egypt, to provide a simple and economic method for MPs assessment. This was the first study in Egypt to quantify MPs in fish. Plastic particles were detected in all fish samples, represented by seven thermoplastic polymers. The average number of MPs was at its highest level in Siganus rivulatus, Diplodus sargus, and Sardinella aurita (7527, 3593, and 1450 MPs fish⁻¹, resp.) and the lowest in Sphyraena viridensis and Atherina boyeri (46 and 28 MPs fish⁻¹, respectively). The average weight of MPs as measured by combustion ranged from 302 mg kg⁻¹ in S. rivulatus to 2 mg kg⁻¹ in Terapon puta.

增强的视觉计数技术与燃烧分析和差示扫描量热法（DSC）相结合，用于评估埃及东部港口鱼类消化道中的微塑料（MPs）污染，从而为MPs评估提供了一种简单而经济的方法。这是埃及第一项量化鱼类中MP的研究。在所有鱼类样品中检测到塑料颗粒，其中以七种热塑性聚合物为代表。gan（Siganus rivulatus），梁龙（Diplodus sargus）和沙丁鱼（Sardinella aurita）的平均MP数量最高（分别为7527、3593和1450 MPs ^-1），而绿藻（Sphyraena viridensis）和Atherina boyeri最低（46和28 MPs鱼类）。^-1， 分别）。通过燃烧测量的MP的平均重量在S中为302mg kg ^-1。在Terapon puta中将rivulatus降至2 mg kg ^-1。