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Using light-scattering intensities to discriminate waterdrops from coal mine dusts.

Authors
Vinson-RP
Source
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9357, 1993 Jan; :1-14
Link
NIOSHTIC No.
10012178
Abstract
The U.S. Bureau of Mines conducts research to protect the health of the Nation's coal miners. The Bureau is pursuing a research program to eliminate coal workers' pneumoconiosis (CWP) by the reduction of respirable coal mine dust in the mine air. A basic requirement for this task is instrumentation to measure respirable coal mine dust concentrations quickly and accurately. The Bureau's research program is applying these advances to develop a photometer that can discriminate between various coal mine aerosols. One objective of this program is to collect scattering signatures of coal mine aerosols. Scattering signatures are the intensities of light scattered by aerosols as a function of angle. Bureau researchers used an instrument, called the DAWN-A, to collect the scattering signatures of various coal mine aerosols for analysis and comparison. The report describes and discusses this work.
Keywords
Coal-miners; Occupational-safety-and-health; Concentration-composition; Aerosols; Light-scattering; Measuring-instruments; Design-criteria; Performance-evaluation; Indoor-air-pollution; Coal-dust; Coal-mines; Air-pollution-sampling; Photometers
Publication Date
19930101
Document Type
Information Circular
Fiscal Year
1993
NTIS Accession No.
PB94-103819
NTIS Price
A03
Identifying No.
IC-9357
NIOSH Division
PRC
Source Name
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9357
State
PA
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