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Pharmaceuticals and Microplastics in Aquatic Environments: A comprehensive Review of Pathways and Distribution, Toxicological and Ecological
Summary
This review examines how pharmaceuticals and microplastics travel through aquatic environments via wastewater, agricultural runoff, and air, and how they affect fish and other aquatic life. Both pollutants build up in the food chain through a process called biomagnification, potentially reaching humans who eat seafood. The authors call for better monitoring and treatment methods to reduce these emerging threats to water quality and public health.
Pharmaceuticals and microplastics are persistent emerging pollutants that pose serious threats to aquatic ecosystems and ecological health. This review provides a thorough and comprehensive examination of their predominant pathways, sources, and distribution, highlighting wastewater disposal, agricultural runoff, and atmospheric deposition. The toxicological effects of these pollutants on aquatic organisms, particularly fish, are discussed, with emphasis on bioaccumulation and biomagnification in the food chain, physiological effects including effects on growth, reproduction, immune system performance and behavioral changes. The ecological consequences, including disruptions to trophic dynamics and ecosystem stability, are also addressed. Although valuable efforts, mitigation and remediation strategies remain inadequate and further research is needed because they do not capture the scale and complexity of these hazards. This review highlights the urgent need to advance treatment technologies, establish comprehensive regulatory frameworks and organize intensive research on long-term ecological impacts to address the environmental threats posed by pharmaceuticals and microplastics.