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Airborne asbestos in Colorado public schools

Journal Article · · Environ. Res.; (United States)

Levels of airborne asbestos for six Colorado public school facilities with sprayed-on asbestos materials were documented using three analytical techniques. Phase contrast microscopy showed levels up to the thousandths of a fiber per cubic centimeter (f/cc), scanning electron microscopy (SEM) up to the hundredths of a f/cc, and transmission electron microscopy coupled to selected area electron diffraction and energy dispersive x-ray analysis (TEM-SAED-EDXA) up to the tenths of an asbestos f/cc. Phase contrast microscopy was found to be an inadequate analytical technique for documenting the levels of airborne asbestos fibers in the schools; only large fibers which were not embedded in the filter were counted, and asbestos fibers were not distinguished from nonasbestos.

Research Organization:
Colorado State Univ., Fort Collins
OSTI ID:
5033437
Journal Information:
Environ. Res.; (United States), Journal Name: Environ. Res.; (United States) Vol. 36:1; ISSN ENVRA
Country of Publication:
United States
Language:
English