Toxicology is the study of the effects of toxins in living beings. It is an amalgamation of biology, pharmacology and chemistry. The field also concerns itself with the relationship and effect of dosage of particular chemicals on the organisms. This book traces the progress of the discipline and highlights some of its key concepts and applications. The text covers in detail some existent theories and innovative concepts revolving around toxicology. Scientists and students actively engaged in this field will find the text full of crucial and unexplored concepts.