TOXIC AGENTS - AIR POLLUTANTS METALS by BMS YEAR 3-TK-2021 - University of Zambia - Medical and Pharmaceutical Sciences-unza

Description

This comprehensive lecture note covers the classification and toxicology of various toxic agents, with a focus on air pollutants and metals. It defines key terms like toxicants and toxins, and classifies toxic substances by target organ, source, physical state, and chemical composition. The material details specific air pollutants, including gaseous pollutants like carbon monoxide and ozone, and particulates such as lead and asbestos, explaining their environmental and health effects. A significant portion is dedicated to toxic metals like lead, mercury, cadmium, chromium, and arsenic, outlining their sources, exposure routes, common toxic mechanisms such as enzyme inhibition and carcinogenicity, and effects on the nervous, renal, reproductive, and respiratory systems. Designed for tertiary students in biomedical sciences, pharmacy, and medicine at the University of Zambia, this resource provides essential revision material on the principles of toxicology, environmental pollution, and metal toxicity, supporting exam preparation and professional understanding of how these agents impact human health and the ecosystem. The notes integrate key concepts of pollutant behavior, bioconcentration, and treatment approaches like chelation therapy, serving as valuable university notes for mastering the assessment and management of chemical hazards. Review this detailed guide to understand the diverse nature and mechanisms of toxic agents in our environment.