Determination of Microplastics in Environmental Toxicology

Microplastics are small particles whose diameter is 0.1 μm to 5 mm. They are common environmental contaminants that have drawn a lot of attention because of the harm they do to ecosystems and public health. The identification of microplastics in environmental toxicology is covered in this chapter. First, it elucidates the nature of microplastics, their origins, and the intricate pathways through which they navigate in the environment, thereby becoming potent environmental toxicants. The chapter further explores methodologies for characterizing microplastics, encompassing sample collection from various environmental matrices, separation techniques, and subsequent identification and quantification methods. Moreover, it outlines analytical approaches for detecting and quantifying microplastics, outlining both established techniques and emerging methodologies. Subsequently, the chapter addresses the challenges inherent in microplastics detection and quantification, emphasizing the standardization of detection methods, contamination control, identification of smaller-sized microplastics, and proposing potential strategies for mitigation and management. Finally, the chapter concludes with a summary of key findings, identifies areas for future research and innovation, and underscores the need for multidisciplinary collaboration in addressing the widespread problem of microplastic contamination.