| A rigorous housekeeping program is necessary
to keep airborne lead levels as low as feasibly possible. OSHA requires the following regarding general
housekeeping:
|
Click for larger view of central vacuum system diagram
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| OSHA Housekeeping
Requirements |
Fig. 1. Vacuum instead of sweep
|
- All surfaces must be maintained as free as practicable of accumulations of lead. [1910.1025(h)(1)]
- Floors and other surfaces where lead accumulates may not be cleaned by the use of compressed air. [1910.1025(h)(2)(i)]
- Shoveling, dry or wet sweeping and brushing may be used only where vacuuming or other equally
effective methods have been tried and found not to be effective (Fig. 1).
[1910.1025(h)(2)(ii)]
- Where vacuuming methods are selected, the vacuums shall be used and emptied in a manner which
minimizes the reentry of lead into the workplace. [1910.1025(h)(3)]
Click for larger view of vacuum truck diagram
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| Video Exposure Monitoring: Glove
Removal |
Dial up Modem, ISDN
LAN, DSL, T1, T3
|
With video exposure monitoring (VEM), worker exposures to lead are monitored and
recorded with a direct reading instrument. At the same time, work place activities are recorded on a
video tape. The right hand bar indicates changes in total dust concentrations over time.
As the employee removes the protective gloves, the increasing red bar indicates that the employee is
exposed to lead due to dispersion of lead from the surface of the improperly cleaned or stored gloves.
Note: This example illustrates the level and duration of exposure to total dust and is used to show how
VEM can be used for determining sources of employee exposure. Other sources of employee lead exposure can
be determined by using VEM sampling for a full work shift. |
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| Video Exposure Monitoring: Shoveling |
Dial up Modem, ISDN
LAN, DSL, T1, T3
|
With video exposure monitoring (VEM), worker exposures to lead are monitored and
recorded with a direct reading instrument. At the same time, work place activities are recorded on a
video tape. The right hand bar indicates changes in total dust concentrations over time.
As the employee shovels the slag during cleanup and places it into the slag pot for disposal, the
increasing red bar indicates that the employee is exposed because lead dust is inadequately captured when
the slag is shoveled and dumped into the pot.
Note: This example illustrates the level and duration of exposure to total dust and is used to show how
VEM can be used for determining sources of employee exposure. Other sources of employee lead exposure can
be determined by using VEM sampling for a full work shift. |
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Central Vacuum
Diagram