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Public Health Hazard Categories Depending on the
specific properties of the contaminant, the exposure situations, and the
health status of individuals, a public health hazard may occur. Using
data from public health assesments, sites are classified using one of
the following public health hazard categories: Category 1: Urgent Public Health HazardSites that pose
a serious risk to the publics health as the result of short-term exposures
to hazardous substances.
Category 2: Public Health HazardSites that pose
a public health hazard as the result of long-term exposures to hazardous
substances.
Category 3: Potential/Indeterminate Public Health HazardSites for which
no conclusions about public health hazard can be made because data are
lacking.
Category 4: No Apparent Public Health HazardSites where
human exposure to contaminated media is occurring or has occurred in the
past, but the exposure is below a level of health hazard.
Category 5: No Public Health HazardSites for which
data indicate no current or past exposure or no potential for exposure
and therefore no health hazard.
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This page updated April 16, 2003
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