Industrial bronchitis

Exposure to dusts, fumes, strong acids, and other chemicals in the air causes this type of bronchitis. Smoking may also contribute.

You may be at risk if you are exposed to dusts that contain:

• Asbestos
• Coal
• Cotton
• Flax
• Latex
• Metals
• Silica
• Talc
• Toluene diisocyanate
• Western red cedar

Symptoms may include any of the following:

• Cough that brings up mucus (sputum)
• Shortness of breath
• Wheezing

The health care provider will listen to your lungs using a stethoscope. Wheezing sounds or crackles may be heard.

Tests that may be ordered include:

• Chest CT scan
• Chest x-ray
• Pulmonary function tests (to measure breathing capacity and how well the lungs are functioning)
• Pulse oximetry or arterial blood gases

The goal of treatment is to reduce the irritation.

Getting more air into the workplace or wearing masks to filter out the offending dust particles may help. Some people may need to be taken out of the workplace.

Some cases of industrial bronchitis go away without treatment. Other times, a person may need inhaled anti-inflammatory medicines. If you are at risk or have experienced this problem and you smoke, stop smoking.

Helpful measures include:

• Breathing humidified air
• Increasing fluid intake
• Resting

The outcome may be good as long as you can stop being exposed to the irritant.

Continued exposure to irritating gases, fumes, or other substances can lead to permanent lung damage.

Contact your provider if you are regularly exposed to dusts, fumes, strong acids, or other chemicals that can affect the lungs and you develop symptoms of bronchitis.

Control dust in industrial settings by wearing face masks and protective clothing, and by treating textiles. Stop smoking if you are at risk.

Get early screening by a doctor if you are exposed to chemicals that can cause this condition.

If you think a chemical you work with is affecting your breathing, ask your employer for a copy of the Material Safety Data Sheet. Bring it with you to your provider.

Occupational bronchitis

Lemiere C, Vandenplas O. Occupational allergy and asthma. In: Burks AW, Holgate ST, O'Hehir RE, et al, eds. Middleton's Allergy: Principles and Practice. 9th ed. Philadelphia, PA: Elsevier; 2020:chap 56.

Tarlo SM. Occupational lung disease. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 87.

Updated by: Denis Hadjiliadis, MD, MHS, Paul F. Harron, Jr. Professor of Medicine, Pulmonary, Allergy, and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.