Silica Medical Surveillance

Employees performing tasks involving potential exposure to airborne crystalline silica dust during onsite or offsite research or maintenance and operations activities where there’s a higher risk of disturbance due to amount, frequency, duration are enrolled in the silica medical surveillance group. The tasks may include but are not limited to: sandblasting; rock drilling; grinding concrete; stonecutting; drilling; quarrying; brick concrete cutting; gunite operations; asphalt grinding; opening and pouring bags of cement products; demolition operations; jackhammering; chipping; sieving activities and sweeping concrete or masonry dust. 

This is a voluntary medical surveillance.