Review of the US Navy's Human Health Risk Assessment of the Naval Air Facility at Atsugi, Japan (2001) / Chapter Skim
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Data Analyses
Data Analyses
Pages 7-12
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From page 7... ...
discuss the importance of risk communication in risk assessment and risk management and of how to incorporate risk communication into these processes. DATA ANALYSES Attributable Risk One objective ofthe NEHC risk assessment was to determine the fraction of health risks at NAP Atsugi attributable to the incinerator complex.
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From page 8... ...
Continuous or semicontinuous monitoring was previously recommended for correlating meteorologic data and emission-dispersion estimates with ambient concentrations of pollutants (NRC ~ 998~. FTIR monitoring, which is a continuous monitoring method, was conducted in the NEHC risk assessment, but the limit of detection was too high to provide useful data (Radian 2000a)
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From page 9... ...
with measured concentrations, correcting for background contaminant concentrations. But the modeling was not used in the risk assessment to determine the contribution ofthe incinerator to exposures at NAF Atsugi.
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7~. More complete information is essential, especially if NEHC is trying to justify the use of outdoor-air concentrations as a surrogate for indoor concentrations in its risk assessment.
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From page 11... ...
The targeted sampling does not appear to have been accounted for in any of the later analyses, either in the evaluation ofthe incinerator-attributable fraction of individual pollutants (on which it probably had a minor effect) or in the risk assessment (in which the effect could be more important)
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From page 12... ...
The Radian report concluded that even compared with the undisturbed reference area far from the incinerator facility, few metals in the areas designated by NEHC as areas of concern at NAF Atsugi had concentrations higher than the upper tolerable limit or mean concentrations higher than what was considered safe. The data from the Radian phase IT soil-sampling report should be used in the risk assessment before such conclusions are made.
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