Quantcast Pre- and Post Remediation Air Sampling

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ITG FY03-4
5 June 2003
inspection or bulk sampling that the ventilation systems are contaminated. The
purpose of such sampling is to assess the extent of contamination throughout a
building and to confirm adequate remediation.
Air sampling may be necessary if the presence of mold is
suspected (e.g., musty odors) but cannot be identified by a visual inspection or
bulk sampling (e.g., mold growth behind walls). The purpose of this sampling is
to determine the location and degree of contamination.
When air sampling is deemed necessary and is performed, collect
outdoor air samples at the same time at the fresh air intake, which serves the
suspected area. Compare the values obtained. The indoor and outdoor air
samples should be similar in kinds and concentrations of mold to what is found
locally in the outdoor air.
Personnel conducting the sampling should be trained in proper air
sampling methods for microbial contaminants. For additional information on air
sampling, refer to the American Conference of Governmental Industrial
Hygienists', Bioaerosols: Assessment and Control.
Only laboratories that are proficient in the American Industrial
Hygienist Association (AIHA) Environmental Microbiology Proficiency Analytical
Testing (EMPAT) program should perform sample analysis.


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