Heavy Metal Accumulation in Fishes A Case Study from Ashtamudi Lake

This book explores the concept of heavy metals, their definition, environmental significance, and the toxicological risks they pose to humans and ecosystems. It delves into the distinction between essential trace elements and harmful metals like lead, mercury, and cadmium, examining their sources, biological roles, and harmful effects. From their occurrence in nature to their concentration due to human activities, the book highlights how these metals accumulate in living organisms, leading to health issues and ecological imbalance. It also covers the methods of treating heavy metal poisoning and discusses the dual nature of metals—essential in trace amounts but toxic in excess.

Heavy metals, defined by their high density and atomic properties, are a significant environmental concern due to their potential toxicity. While some, such as iron and zinc, are essential in trace amounts, others like lead and mercury are highly toxic, even at low concentrations. This book investigates the sources, bioaccumulation, and harmful effects of heavy metals on human health and ecosystems, including poisoning and interference with metabolic functions. It examines how metals enter the food chain, their role in environmental pollution, and the challenges of managing exposure. The work also discusses methods for treating heavy metal poisoning and mitigating environmental impact.

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