Respiratory Effects Of Exposure To Low Levels Of Concrete Dust Containing Crystalline Silica

Dusts containing crystalline silica are generated in mining, construction, glass, granite and concrete production industries. The association between exposure to low levels of concrete dust containing crystalline silica and reduction in lung function, was evaluated in a cross-sectional study. The study was carried out among 144 concrete workers, from 2 factories, with exposure assessment of respirable dust and silica by personal samplers. Results of respiratory questionnaires and standardised measurements of lung function were compared with the results in a control population. Multiple linear regression analysis was used in selecting factors that predict lung function.