Byssinosis
Occupational lung disease from cotton or jute dust exposure.
Byssinosis is an occupational lung disease caused by inhalation of cotton or jute dust in inadequately ventilated working environments. It commonly occurs in textile workers employed in yarn and fabric manufacture and can develop over time with repeated exposure. The disease is also referred to as brown lung disease, cotton worker's lung, mill fever, and Monday fever.
- field
- Occupational lung disease
- known_for
- Caused by inhalation of cotton or jute dust; also called brown lung disease
- affected_industries
- Textile manufacturing, yarn and fabric production
- key_regions
- United States (especially North Carolina, South Carolina, Georgia); low and middle income countries (India, Pakistan, China)
- regulatory_standards
- OSHA PEL of 0.2 mg/m³ (1978); NIOSH REL of less than 0.2 mg/m³
Lore & Background
Byssinosis often occurred during the Industrial Revolution, most commonly affecting young girls working in mills or textile factories. In the United States, between 1996 and 2005, North Carolina accounted for about 37% of all deaths caused by byssinosis, with 31 deaths, followed by South Carolina (8) and Georgia (7). Of the 81 byssinosis-related fatalities reported in the United States between 1990 and 1999, 48% included an occupation in the yarn, thread, and fabric industry on their death certificate.
The disease is thought to be caused directly by cotton dust, with some believing the causative agents are endotoxins from gram-negative bacteria that grow on cotton. However, the absence of similar symptoms in workers in other industries exposed to endotoxins makes this uncertain. Current smokers are also at risk for developing byssinosis or having complications relating to it. There is a lack of information regarding the prevalence and impact of byssinosis in low and middle income countries, despite about two-thirds of the world's cotton production coming from such countries.
Reader's Guide
Byssinosis remains a significant occupational health concern, particularly in textile-producing regions. The term 'brown lung' is a misnomer, as the lungs of affected individuals are not brown. Symptoms include cough with sputum, dyspnea, chest tightness, wheezing, and can develop after a few hours of exposure, leading to the term 'Monday fever.' Chronic exposure can result in narrowing of the airways, lung scarring, and death from infection or respiratory failure. Diagnosis relies on patient history of dust exposure and measurable decline in FEV1 over a work shift, as there is no official diagnostic test. Treatment focuses on removing affected workers from exposure and implementing dust control measures. Regulatory efforts, such as OSHA's 1978 Cotton Dust Standard setting a permissible exposure limit of 0.2 mg/m³, aimed to reduce disease, but NIOSH studies found that byssinosis can occur at levels as low as 0.1 mg/m³, indicating ongoing risk. The disease can be misdiagnosed as COPD or asthma.
Did You Know?
- Byssinosis is also called brown lung disease, cotton worker's lung, mill fever, and Monday fever.
- The term 'brown lung' is a misnomer because the lungs of affected individuals are not brown.
- Of 81 byssinosis-related fatalities in the U.S. between 1990 and 1999, 48% involved workers in the yarn, thread, and fabric industry.
- North Carolina accounted for about 37% of all U.S. byssinosis deaths from 1996 to 2005.
Frequently Asked Questions
Who is Byssinosis?
Byssinosis is an occupational lung disease triggered by breathing in cotton or jute dust in poorly ventilated workplaces. It primarily affects textile workers involved in yarn spinning and fabric production.
What are Byssinosis's powers/role?
Its effect is progressive airway restriction that worsens with repeated dust exposure over time. Workers typically notice chest tightness and shortness of breath, particularly at the start of a workweek after a weekend away from the shop floor.
How does Byssinosis's story end?
In early stages, symptoms can improve once the worker is removed from the dust environment. However, prolonged exposure can lead to irreversible airflow obstruction that closely resembles chronic obstructive pulmonary disease.
Why is Byssinosis important?
It historically affected large numbers of textile workers in U.S. states such as North Carolina, South Carolina, and Georgia, as well as workers in India, Pakistan, and China. Regulatory limits like OSHA's 1978 permissible exposure level of 0.2 mg/m³ were established specifically to protect workers from this hazard.
What are Byssinosis's aliases?
The condition is also known as brown lung disease, cotton worker's lung, mill fever, and Monday fever. These nicknames reflect the brownish discoloration of lung tissue seen on imaging and the pattern of symptoms flaring after a weekend away from the mill.
More in Occupational diseases 1-24
Spotted an error? Know more?
This is a living reference — every entry is fact-audited, and reader corrections feed straight into our audit queue. Suggest an edit · See this site's audit record