All plastic samples were obtained from various everyday sources, primarily including laboratory products (such as gloves, septum stoppers, Falcon tubes, and lab-grade plastic pellets) and consumer materials (such as carrier bags, slushy cups, and 3D printing filaments). For a comprehensive analysis of the results, we further categorized these plastics into four distinct cases, each represented by an example. These cases reflect some of the most commonly detected plastic and microplastic types in wastewater.