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U.S. Department of Energy
Office of Scientific and Technical Information

Achieving a transmission-electron-microscopy clearance criterion at asbestos abatement sites in ew Jersey

Technical Report ·
OSTI ID:6517335

Representatives of the New Jersey Department of Health's Asbestos Control Service conducted final clearance evaluations at 79 schools where asbestos removal took place during the Summer of 1987. The evaluations entailed a thorough visual inspection of each abatement area by an experienced inspector, the performance of aggressive air sampling, and sample analysis by transmission electron microscopy (Yamate-revised Method). Each abatement site was evaluated against an absolute air-clearance criterion of 0.01 fiber per cubic centimeter (f/cu cm). The results of the study support the premise that a thorough visual inspection strongly influences passing a transmission electron microscopy (TEM) clearance test. These data also demonstrate that post-abatement air concentrations that meet the clearance criterion (0.01 f/cu cm) can be achieved by a detailed cleaning, thorough visual inspection, and subsequent use of aggressive air-sampling techniques.

Research Organization:
Environmental Protection Agency, Cincinnati, OH (USA). Risk Reduction Engineering Lab.
OSTI ID:
6517335
Report Number(s):
PB-89-118392/XAB; EPA-600/D-88/227
Country of Publication:
United States
Language:
English