ASBESTOS ABATEMENT
Work area sampling procedures
The following asbestos abatement sampling procedures shall be used within the work area during all clearance air monitoring:
Before starting the sampling pumps, use forced air equipment (such as a l horsepower leaf blower) to direct exhaust air against all walls, ceilings, floors, ledges and other surfaces in the work area.
For asbestos projects: this pre-sampling procedure shall take at least 5 minutes per 1,000 sq. ft. of floor area; then install one 20-inch fan per 10,000 cubic feet of room space. Then immediately place the fan on slow speed and point it toward the ceiling.
For pre-demolition asbestos abatement activity, this pre-sampling procedure shall take at least three minutes, after which the 20-inch fan shall be left running unattended in the work area throughout sampling. This procedure shall be acceptable when the floor area of the work area is less than 500 square feet. At or above 500 square feet of floor area within the work area, the aggressive sampling procedures specified in this subdivision (d) for asbestos projects shall be conducted.
Courtesy of The City of New York Department of Health
The truth about asbestos
Despite the potentially fatal health consequences associated with asbestos exposure, asbestos is still imported and used in the United States for its insulation properties. The United States imported and used an estimated 1,820 tons of asbestos in 2007, according to the U.S. Geological Survey.
Government sources estimate that in the next decade more than 35,000 people nationwide will be diagnosed with the deadliest form of asbestos-related cancer, mesothelioma. This disease is most often the result of industrial workplace exposure to asbestos – and usually contracted through employers’ blatant disregard for the health and safety of their workers.
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