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Understanding and Mitigating the Toxic Impacts of Microplastic Pollution on Environmental Health
Summary
This review covers the sources, types, and ecological impacts of microplastics as environmental contaminants, examining how polymer-specific properties such as chemical additives affect toxicity across ecosystems and discussing mitigation approaches including physical and chemical remediation.
Plastic particles smaller than 5 mm are known as microplastics (MPs) and they have become widespread environmental contaminants that have a significant impact on ecosystems and human health. They fall into two general categories: primary MPs, which are purposefully produced at tiny sizes (such as microbeads used in cosmetics), and secondary MPs, which are produced when bigger plastic waste breaks down. These particles, which might be beads, fibres, or fragments, are made of polymers such as polyethylene, polypropylene, and polystyrene and frequently include colourants and flame retardants as additives. Poor waste management, air deposition, and industrial discharge are the main ways that MPs enter the environment. After being discharged, they spread across ecosystems of soil, water, and air, polluting freshwater and marine systems, changing the microbial populations and soil structure, and travelling great distances in air. Toxicological hazards are increased by their role as vectors for adsorbed contaminants. Microscopy, spectroscopy, and sophisticated chemical analysis, like pyrolysis-gas chromatography-mass spectrometry, are examples of detection techniques. Improving waste management systems, cutting back on plastic manufacture, and encouraging biodegradable substitutes are all examples of mitigation techniques. Numerous studies on the origins, pollution, bioaccumulation, environmental effects, and detection technologies of MPs are summarized in this review. It also highlights how critical it is to create creative public initiatives for primary and secondary MP pollution prevention, monitoring, and management. . KEYWORDS :Adsorption, Detection methods, Microplastic, Mitigation strategies, Toxicity, Waste management.
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