Industrial Hygiene

A biological safety cabinet is a primary engineering control used in laboratories to minimize worker and environmental exposure to biological agents handled during microbiological procedures. It works by drawing room air through the front opening, filtering it through a high-efficiency particulate air filter, and directing filtered airflow in a pattern that contains aerosols generated inside

Confined space entry is a category of work that involves entering spaces such as tanks, vessels, silos, pits, vaults, pipelines, and sewers that are large enough to enter and work in but are not intended for continuous human occupancy and typically have restricted means of entry or exit. These characteristics create conditions that can quickly

Dermal exposure describes contact between a hazardous chemical, biological agent, or other substance and a worker skin, representing a route of entry into the body that is distinct from inhalation or ingestion. Depending on the substance, dermal exposure can cause localized effects at the point of contact or systemic effects after absorption into the bloodstream.

Ergonomics is the scientific discipline concerned with understanding interactions among humans and other elements of a system, and the profession that applies theory, principles, and methods to design in order to optimize human well-being and overall system performance. In occupational settings, ergonomics focuses on fitting the job to the worker rather than forcing the worker

Exposure assessment is the process used in industrial hygiene to characterize the nature and magnitude of worker contact with chemical, physical, biological, or ergonomic hazards in the workplace. It combines direct measurement, observation of work practices, and professional judgment to build a picture of who is exposed, to what, at what level, and for how

Heat stress describes the combined physiological load placed on a worker by environmental heat sources, metabolic heat generated through physical labor, and clothing or protective equipment that limits the body ability to dissipate heat through sweating and radiation. Left unmanaged, heat stress can progress through a spectrum of increasingly severe heat related illnesses. n Spectrum

Industrial hygiene, sometimes called occupational hygiene, is the scientific discipline concerned with anticipating, recognizing, evaluating, and controlling workplace conditions that may cause worker injury, illness, or other adverse health effects, spanning chemical, physical, biological, and ergonomic hazards found across virtually every industry. The discipline is often summarized through its four core functions: anticipating hazards before

Noise-induced hearing loss is permanent hearing damage caused by exposure to excessively loud sound over time, representing one of the most common occupational illnesses worldwide and a hazard present across industries ranging from manufacturing and construction to music and entertainment. The damage underlying noise-induced hearing loss occurs at the level of delicate sensory hair cells

Respiratory protection refers to the equipment and formal programs used to protect workers from inhaling hazardous airborne contaminants such as dusts, fumes, gases, and vapors, ranging from simple disposable filtering facepieces to sophisticated powered air-purifying or supplied-air systems depending on the severity of the hazard present. Selecting appropriate respiratory protection requires understanding both the specific

A ventilation system in the context of occupational hygiene is an engineering control designed to manage airborne contaminants by supplying fresh air, removing contaminated air, or both, in order to maintain acceptable air quality and protect worker health. Ventilation ranks among the preferred hazard controls because it reduces exposure at an environmental level rather than