Environmental health focuses on the interactions between people and their environment, aiming to prevent adverse health outcomes through the management of environmental factors. It encompasses a wide range of issues including air and water quality, waste management, and the impact of chemicals and radiation on human health.
Chemical fixation is a process used to preserve biological tissues in a life-like state by stabilizing their structures through chemical means, typically involving the use of fixatives like formaldehyde or glutaraldehyde. This process is crucial in histology and microscopy as it prevents autolysis and decay, allowing for detailed examination and analysis of cellular and tissue architecture.