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Plastic Pollution in Coastal and Marine Environments: Sources, Impacts, and Solutions
Summary
This review paper pulls together existing research on how plastic waste—from littering, industrial dumping, and single-use products—ends up in our oceans and coastlines, breaking down into tiny "microplastics" that marine animals eat and that work their way up the food chain (potentially onto your dinner plate). While the paper doesn't directly test human health effects, it highlights that these microplastics can carry harmful chemicals, making better waste management, recycling, and global regulations important not just for ocean life, but for the food we eventually consume.
Plastic pollution in coastal and marine habitats is an emerging global concern that needs immediate attention to identify its sources, effects, and feasible solutions. Plastic pollution in coastal and marine habitats originates from a complex web of sources. A major source of plastic pollution is the poorly managed disposal of plastic waste, both on land and at sea. This includes littering, inappropriate garbage disposal in landfills, and the runoff of plastics from urban areas into water bodies. Furthermore, industrial discharges, fishing, and shipping activities discharge plastic particles and garbage directly into the water. Single-use plastics, such as bottles, bags, and packaging, are prevalent contributors, often ending up in the marine environment due to their durability and poor disposal. The impacts of plastic waste on coastal and marine environments are a globally severe problem. Marine life bears the brunt of this huge problem, with marine species being entangled in discarded plastic trash and swallowing microplastics. These consequences damage the delicate balance of ecosystems, harming species and even disrupting food chains. Microplastics, tiny plastic particles that originate from the degradation of bigger plastics, enter every corner of the oceans, providing a threat to organisms at all trophic levels, and it has the potential to transfer harmful chemical compounds. Mitigating plastic waste in coastal and marine habitats demands different approaches. Technological advances, including enhanced garbage collection systems, recycling technologies, circular economy efforts, awareness campaigns, and incentives, support responsible plastic usage and disposal, which play a crucial role in preventing plastic waste from being released into the oceans. On a worldwide scale, laws and international agreements are vital tools to limit plastic production, minimize pollution, and promote sustainable practices offering a potential route toward a cleaner and better future for coastal and marine environments.