Record Display for the EPA National Library Catalog
RECORD NUMBER: 331 OF 814| Main Title | Feasibility study for an asbestos aerosol monitor / | |||||||||||
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| Author | Detenbeck, Robert W. | |||||||||||
| CORP Author | Vermont Univ., Burlington. Dept. of Physics.;Environmental Sciences Research Lab., Research Triangle Park, NC. | |||||||||||
| Publisher | U.S. Environmental Protection Agency, Environmental Sciences Research Laboratory, | |||||||||||
| Year Published | 1980 | |||||||||||
| Report Number | EPA/600/2-80/200; EPA-R-804562 | |||||||||||
| Stock Number | PB81-120800 | |||||||||||
| Subjects | Asbestos--United States ; Aerosols | |||||||||||
| Additional Subjects | Monitors ; Asbestos ; Aerosols ; Particles ; Air pollution ; Feasibility ; Light scattering ; Diffraction ; Design criteria ; Performance evaluation ; Industrial hygiene ; Public health ; Air pollution detection | |||||||||||
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| Collation | 143 pages : illustrations ; 28 cm | |||||||||||
| Abstract | The feasibility of discriminating and counting asbestos-fiber aerosol particles by means of their shapes, using a two-detector, optical, aerosol counter was determined. The assymmetry of their optical diffraction patterns would distinguish fibers from other, more regular aerosol particles. A laboratory prototype was designed, constructed, tested, modified and retested. The feasibility of counting fibers by means of their optical diffraction patterns, using two detectors, was demonstrated. In the latest version the aerosol fibers were aligned by a combination of fluid-velocity-gradient and electric fields. A description of the latest version, its capabilities and limitations, and a theoretical model of the alignment process are presented. |
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| Notes | Caption title. "December 1980." "EPA-600/2-80-200." Microfiche. |