Microplastics: Critical Evidence vs. Public Perception

To assess the reliability of current research on microplastics, this critical review evaluates the scientific soundness of pivotal studies influencing public and academic perceptions of this topic. A significant body of literature exhibits structural limitations, including conceptual fragilities, non-systematic theoretical frameworks, and a recurrent absence of expertise in polymer science, which collectively introduce analytical inaccuracies into both academic and media discourse. Although microplastics originate from the degradation of commodity polymers, they represent only about 1-3% of microparticles in the human body-rendering them substantially less prevalent than metallic or mineral particulates. Furthermore, empirical evidence demonstrating microplastic toxicity in humans remains unproven, and actual exposure levels are negligible. To ensure scientific credibility, future research must integrate interdisciplinary collaboration with polymer experts, apply rigorous analytical methods, and contextualize microplastics within the broader spectrum of microparticles. Adhering to ethical, evidence-based frameworks and objective methodological designs is essential to reinforce the analytical rigor of the field.