NYC 9/11 Public Portal Document
Staten Island Landfill Debris Disposal Operation Health and Safety Program
Personal Hygiene Specialists and Safety Monitors - This includes personnel who
are assigned to decontamination activities such as personnel decontamination as
well as vehicle decontamination.
Homogeneity of Material - The amount of a hazardous agent involved with a process is directly
proportional to the potential for worker exposure to that parameter. If the concentration of a
parameter is constant in a given process (homogeneous), it can assumed that the exposure to the
parameter will also be constant. In this situation, exposure monitoring conducted over a relatively
short period of time (several work shifts) can be used to create a negative exposure assessment.
The subject work of this project does not involve the processing of material with a homogeneous
concentration of potential hazardous agents. As such, air-sampling frequencies will have to
anticipate fluctuations associated with potential hazardous agents in the waste stream.
Ambient Conditions-Temperature, wind, and relative humidity will impact worker exposure. The
exact impact of these factors is difficult to predict, and therefore, air samples will be collected over a
variety of different ambient conditions.
Individual Work Practices - The subject work of this project is labor-intensive, and requires
constant hand manipulation of materials that may contain hazardous agents. While the overall work
process should be considered standardized, there exists variations in individual work methods that
may influence exposures. To minimize this influence, multiple samples will need to be collected
from workers within each work group.
Air samples will be collected following current methods established by the National Institute for
Occupational Safety and Health (NIOSH). If the event that NIOSH methods do not exist, or are
deemed not practical for an application, an alternative method will be used. The alternative method
will require validation by the laboratory conducting the analysis, and will have to produce sufficient
written documentation to that effect.
Exposure monitoring will encompass a combination of qualitative grab samples, short term, and
whole shift monitoring as described below:
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NYC-WTC_000150392
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