Silicon Dioxide, SiO2. Bronchitis, Emphysema and Asthma.
Smoking is known to aggravate the effects of exposure.
For gross inhalation, remove person to fresh air and seek medical attention accordingly. Select respiratory based on the results of the workplace dust surveys. Use respirators that protect against the highest concentrations of crystalline silica if the actual concentration is unknown. Use administative controls such as job rotation and water spray to supplement engineering controls and respiratory protection. Use water sprays and shovels to clean up spills.