This study aims to provide further understanding of physiologic and symptomatic changes
and radiographic abnormalities due to exposure to silica, asbestos, and coal dusts …

We conducted a comparative study of pulmonary dysfunction among workers who were
exposed to silica, asbestos, or coalmine dust. The results showed that all three groups of …

To investigate the relationship of lung function, airflow limitation, and lung injury in silica-
exposed workers, we analyzed the clinical, functional, and radiologic data of 94 long-term …

Excessive exposure to coal, coal mine, and silica dust continues to occur in the United
States, and many countries worldwide. These dust exposures can cause a variety of …

This study was conducted to investigate the health effects of exposure to silica dust in
firebrick manufacturing plants. A cross-sectional study was designed, and the health effects …

Rationale: Recent reports of progressive massive fibrosis and rapidly progressive
pneumoconiosis in US coal miners have raised concerns about excessive exposures to coal …

OBJECTIVE: To evaluate the usefulness of fibrogenic cytokines and mediators in the
analysis of induced sputum and determine if their levels correlated with previous decline in …

Background The adverse health effects of silica are still a major concern in some industries.
The purpose of this study was to evaluate pulmonary function in a group of sub-radiological …

Background It has been established that occupational exposure to silica dust may cause
significant impairment of pulmonary function. To compare the contribution of silicosis and …

It has been established that coal pneumoconiosis and confluent silicosis are associated with
emphysematous changes in the lungs. In the present study, we addressed the concept of …