Lung function and paper dust exposure among workers in a soft tissue paper mill

Area of Science:

• Occupational Health
• Pulmonary Medicine
• Environmental Health

Background:

• Respiratory effects of soft paper dust exposure are understudied.
• Paper mill workers face potential occupational respiratory hazards.

Purpose of the Study:

• To investigate the respiratory effects of soft paper dust exposure in paper mill workers.
• To quantify the relationship between soft paper dust exposure levels and lung function impairment.

Main Methods:

• 198 Swedish paper mill workers underwent spirometry and atopy screening.
• Lung function (FVC, FEV1) was measured and compared based on historical dust exposure levels (high >5 mg/m³ vs. low ≤5 mg/m³).
• Multiple linear regression models adjusted for smoking, atopy, gender, and BMI were used.

Main Results:

• Significant associations were found between cumulative and high soft paper dust exposure and impaired lung function.
• Each year of high exposure correlated with a 0.87% decrease in FEV1 and a 0.54% decrease in FVC.
• Workers exposed to high levels of soft paper dust showed reduced lung function compared to lower-exposed groups.

Conclusions:

• Occupational exposure to soft paper dust is linked to lung function impairment.
• Exposure exceeding 5 mg/m³ total dust is associated with an increased prevalence of obstructive lung function impairment.