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Welcome to eGyanKosh, your comprehensive resource for academic materials related to environmental studies. In this section, we delve into Unit 4 of our curriculum, focusing on Environmental Pollutants and Pollution, with a particular emphasis on Solid Waste and Radiation. As part of the IGNOU 2025 syllabus, this study material is designed to equip you with a thorough understanding of the various types of environmental pollutants, their sources, impacts, and the critical importance of managing solid waste and radiation effectively. Best of all, you can access this valuable resource for free, ensuring that you have all the tools necessary for your academic success and a deeper appreciation of environmental issues. Download your study material today and take a step towards becoming an informed advocate for a sustainable future.