Dust, Fumes, Mists, Vapors, and Gases
Oxygen deficient atmospheres or harmful dusts, fumes, mists,
vapors, or gases in concentrations sufficient to present a
hazard to employees must be controlled when possible by removing
the employee from the exposure, limiting daily exposure, or
applying engineering controls. 1528
A. Whenever the above controls are not practical or fail
to achieve full compliance, respirator protection must be
used, according to 5144.
1528(a)
B. Ventilation must comply with Article 4 in the GISOs if
it is used as an engineering control method. 1528(c)
C. Common sources of the above hazards include the following:
- Engine exhaust emission (carbon monoxide)
- Blasting (CO2, asbestos, silica, dust)
- Concrete and rock cutting (asbestos, silica, dust)
- Fuel storage tanks (harmful vapors)
- Lead abatement (lead particles)
- Asbestos abatement (asbestos fibers, vapors)
- Demolition (asbestos, silica, lead, dust, etc.)
- Welding (fumes)
- Painting and spraying (vapors, lead)
- Sand blasting (asbestos, silica, lead, dust)
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