Overview
Respiratory hazards at work include anything in the air that can harm the nose, throat, airways, or lungs. Examples include silica dust, coal dust, wood dust, asbestos, welding fumes, chemical vapors, diesel exhaust, and biological particles such as mold. Effects may happen quickly after a high exposure or build up over months to years.
Key Symptoms
Symptoms can include coughing, wheezing, shortness of breath, chest tightness, throat or nose irritation, and unusual mucus. Some people notice symptoms only during work or at the end of a shift, while others develop ongoing breathing problems. Red-flag symptoms include trouble breathing, blue lips, chest pain, coughing up blood, or sudden severe irritation after a chemical exposure.
Causes and Risk Factors
The main causes are breathing in harmful airborne substances or working in poorly ventilated spaces. Risk is higher with frequent exposure, high concentrations, long shifts, enclosed work areas, and tasks such as cutting, grinding, sanding, spraying, welding, mining, construction, cleaning, or working with animals or grain. Smoking can further damage the lungs, but non-smokers can also be seriously affected.
Who Is Affected
People in construction, mining, manufacturing, agriculture, healthcare, transportation, cleaning, firefighting, and laboratory work may be exposed. Informal workers, temporary workers, and people without training or proper protective equipment may face higher risk. Exposure can happen in low-income and high-income settings alike.
Prevention
Prevention starts with removing or reducing the hazard where possible, such as using less hazardous materials or changing the process. Good ventilation, dust control, enclosed systems, and regular maintenance help lower exposure. Respirators may be needed for some tasks, but they should be properly selected, fitted, and used as part of a broader workplace safety plan. Training, labeling, and access to safety information are also important.
Diagnosis and Tests
A healthcare professional may ask about your job, the materials you work with, when symptoms happen, and whether coworkers have similar problems. Tests may include a lung exam, breathing tests, oxygen measurement, chest imaging, or blood tests depending on the exposure and symptoms. Bringing product names, safety data sheets, or a list of tasks can help guide the evaluation.
Treatment Categories
Treatment depends on the type of exposure and the health problem it has caused. It may include stopping or reducing exposure, workplace changes, monitoring of lung function, and treatment for airway irritation or lung disease under medical supervision. Urgent decontamination or emergency care may be needed after major chemical or smoke exposure.
Living With It
If you have work-related breathing symptoms, tracking when they occur can help you and your healthcare professional identify triggers. Follow-up may be needed because some occupational lung conditions can worsen even after exposure continues or may improve only after exposure is reduced. Discuss work accommodations, exposure controls, and return-to-work planning with your employer and healthcare team.
When to Seek Medical Care
Seek medical care if you develop repeated cough, wheezing, shortness of breath, chest tightness, or throat irritation that seems linked to work. Also get checked if symptoms are new, getting worse, waking you at night, or limiting exercise or daily tasks. Tell the clinician what you were exposed to and when the exposure happened.
When It May Be an Emergency
Get urgent help right away for severe trouble breathing, chest pain, confusion, fainting, blue or gray lips, coughing up blood, or sudden symptoms after inhaling smoke, toxic gas, or chemical fumes. Emergency care is also needed after exposure in an enclosed space, after loss of consciousness, or if more than one person becomes ill at the same workplace.