This book offers a comprehensive examination of the causes, consequences, and potential remedies for marine pollution. It outlines proactive measures to prevent pollution caused by an array of pollutants. The text covers the existing knowledge about pollutant impacts on marine viruses, virus-host systems, and their ecological implications. The excessive nutrients originating from sewage and river discharges are primary contributors to marine eutrophication and the formation of mucilage. This phenomenon is often linked to the proliferation of large viral populations. Moreover, hydrocarbons, polychlorinated biphenyls, and pesticides disrupt ecosystem functioning and can induce changes in virus-host interactions, ultimately amplifying the risk of viral infections. These pollutants may also exhibit synergistic effects on the virus-host system and trigger prophage induction, thereby intensifying the impact of viruses on marine ecosystems.