[Chronic obstructive lung diseases due to organic dust exposure]

A group of female workers occupationally exposed to cotton, hemp, flax, spices, soy, tea, coffee and furs was included in the study. The highest prevalence of chronic respiratory symptoms and diseases and greatest changes in ventilatory capacity were due to exposure to hemp and flax aerosols. The development of respiratory impairment can be impeded by control of the working environment and preventive medical examinations.