Industrial hygiene is a branch of occupational health and safety that focuses on the identification, evaluation, and control of workplace hazards that can affect the health and well-being of workers. This includes assessing exposure to chemical, physical, biological, and ergonomic hazards in the workplace. Industrial hygienists work to prevent occupational illnesses and injuries by implementing control measures and monitoring compliance with safety regulations. This field plays a crucial role in maintaining a safe and healthy work environment for employees in various industries.